Entries |
Document | Title | Date |
20080204655 | FUNDUS OCULI OBSERVATION DEVICE AND FUNDUS OCULI IMAGE PROCESSING DEVICE - A fundus oculi observation device comprises: an image forming part configured to optically acquire data and form a tomographic image of a fundus oculi of an eye; a storage configured to store optical information representing a state of an ocular optical system of the eye; a calculator configured to calculate a magnification of the ocular optical system, based on the optical information; and an analyzer configured to analyze the tomographic image, based on the magnification. | 08-28-2008 |
20080204656 | Image processing apparatus - A model eye that models the optical characteristics of a human eye and is endowed with a grayscale pattern on the ocular fundus model surface is stereographically photographed with a parallax via a stereo photographic optical system. Photographed images are processed to provide calibration data for correcting the shape distortions of the stereo photographic optical system. The calibration data is used to correct a distortion-affected shape data and parallax images obtained in stereographic photography of the actual ocular fundus of a subject's eye. The shape distortion-corrected parallax image is used for a three-dimensional measurement process and 3D display on a stereo monitor. This allows an accurate three-dimensional measurement to be carried out and an accurate fundus image to be produced. The examiner can accurately evaluate the stereo shape of the ocular fundus of the subject's eye. | 08-28-2008 |
20080212026 | Noninvasive ocular monitor and method for measuring and analyzing physiological data - A non-invasive device and methods for acquiring and analyzing ocular images from a subject is presented. Aspects of the method comprise of the acquisition of ocular image(s) and subsequent evaluation, classification and/or interpretation of these image(s). The ocular image(s) are acquired using ocular scanning instruments or suitable substitutes. Evaluation, classification, and/or interpretation are most easily accomplished automatically through the use of one or more algorithms. | 09-04-2008 |
20080212027 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS - An ophthalmologic photographing apparatus includes a light source having two or more types of light-emitting-diode (LED) light emitting elements configured to emit light of different wavelengths, an illumination optical system configured to illuminate a fundus of a subject's eye with light emitted by the light source, an imaging optical system configured to form a fundus image from light reflected from the fundus of the subject's eye illuminated by the illumination optical system, and a control unit configured to control the light source to emit light of different wavelengths, with which the fundus of the subject's eye is illuminated, between when the formed fundus image is observed and when the formed fundus image is captured as a still image. | 09-04-2008 |
20080218694 | High-resolution Adaptive Optics Scanning Laser Ophthalmoscope with Multiple Deformable Mirrors - An adaptive optics scanning laser opthalmoscopes is introduced to produce non-invasive views of the human retina. The use of dual deformable mirrors improved the dynamic range for correction of the wavefront aberrations compared with the use of the MEMS mirror alone, and improved the quality of the wavefront correction compared with the use of the bimorph mirror alone. The large-stroke bimorph deformable mirror improved the capability for axial sectioning with the confocal imaging system by providing an easier way to move the focus axially through different layers of the retina. | 09-11-2008 |
20080225227 | Apparatus and Method for Correcting for Aberrations in a Lens System - A method and apparatus for compensating for aberrations or distortions of an optical system such as an eye of a patient which is to be imaged by a camera is disclosed. Light passing through the optical system is detected by a charge coupled device ( | 09-18-2008 |
20080225228 | WAVEFRONT ABERRATION COMPENSATING APPARATUS AND OPHTHALMOLOGIC UNIT HAVING THE SAME - A wavefront aberration compensating apparatus, including: a deformable mirror which compensates a wavefront aberration of a light flux and includes electrodes, and a thin-film mirror which changes a configuration thereof in accordance with a voltage value applied to each of the electrodes; an optical system provided with the deformable mirror and including an object subjected to aberration compensation; a wavefront sensor which measures the wavefront aberration of the light flux; a memory which stores therein a voltage template provided for each expansion mode according to a polynomial of wavefront aberration, as a voltage alignment data for the electrodes which induces the corresponding expansion mode; and a controller configured to determine a superposition amplitude value of each of the expansion modes and calculate the voltage value applied to each of the electrodes by using the voltage templates stored such that the wavefront aberration obtained by the wavefront sensor becomes a desired aberration, and to repeat compensation of the configuration of the thin-film mirror on the basis of the calculated voltage value, such that the wavefront aberration of the light flux measured by the wavefront sensor is suppressed. | 09-18-2008 |
20080225229 | WAVEFRONT ABERRATION COMPENSATING APPARATUS AND OPTHALMOLOGIC UNIT HAVING THE SAME - A wavefront aberration compensating apparatus includes: a deformable mirror which compensates a wavefront aberration of a light flux entered, the deformable mirror including a plurality of electrodes, and a thin-film mirror which changes a configuration thereof in accordance with a voltage value applied to each of the electrodes; an optical system provided with the deformable mirror, and including an object subjected to aberration compensation; a wavefront sensor which receives the light flux traveled through the object and the deformable mirror, and which measures the wavefront aberration of the light flux; and a controller configured to calculate the voltage value applied to each of the electrodes, on the basis of differences, from a signal outputted from the wavefront sensor, between application points on the thin-film mirror and target points both corresponding to the electrodes, respectively, and to repeat compensation of the configuration of the thin-film mirror of the deformable mirror on the basis of the calculated voltage value, such that the wavefront aberration of the light flux measured by the wavefront sensor is suppressed. | 09-18-2008 |
20080225230 | WAVEFRONT ABERRATION COMPENSATING APPARATUS AND OPHTHALMOLOGIC UNIT HAVING THE SAME - A wavefront aberration compensating apparatus, which includes: a deformable mirror having electrodes and a thin-film mirror; an optical system provided with the deformable mirror and including an object; a wavefront sensor which measures a wavefront aberration of a light flux; and a controller configured to: calculate a first voltage value applied to each of the electrodes, on the basis of differences between application points on the thin-film mirror and target points both corresponding to the electrodes respectively; determine a superposition amplitude value of each expansion mode according to a polynomial of wavefront aberration, and calculate a second voltage value applied to each of the electrodes by using voltage templates previously stored, such that the wavefront aberration obtained by the wavefront sensor becomes a desired aberration; determine the voltage value applied to each of the electrodes, by mainly using the second voltage value in an initial stage of compensation of the configuration of the thin-film mirror and by mainly using the first voltage value in an end stage of the compensation; and repeat the compensation on the basis of the determined voltage value, such that the wavefront aberration of the light flux is suppressed. | 09-18-2008 |
20080231803 | COMPACT OCULAR FUNDUS CAMERA - Embodiments of a compact camera for imaging the ocular fundus are described. In some embodiments, the camera is a light, handheld camera that acquires a plurality of images of the fundus. The camera can be configured to acquire images manually or automatically. A movable imaging lens or movable image detector provides the images in a series to obtain an image with optimal focus. The camera can acquire a series of images and allow selection of an optimal image either manually, or automatically. In some embodiments, the camera is part of an imaging system that includes a base station. The base station exchanges data with the camera and can receive image data generated by the image detector of the camera. The base can further include networking capability, such that image data can be distributed over a network or to other communication or computing devices. | 09-25-2008 |
20080239238 | OPTICAL IMAGE MEASUREMENT DEVICE AND OPTICAL IMAGE MEASUREMENT METHOD - An optical image measurement device comprises: an interference-light generator configured to generate an interference light by splitting a low-coherence light into a signal light and a reference light and superimposing the signal light having passed through an eye and the reference light having passed through a reference object; a detector configured to detect the generated interference light; a calculator configured to obtain intensity distribution of the interference light in the eye, based on a result of the detection by the detector; a determining part configured to determine a projection position of the signal light to the eye, based on the obtained intensity distribution; and an image forming part configured to form an image of the eye, based on a result of detection of a new interference light based on a new signal light projected toward the determined projection position and a new reference light having passed through the reference object. | 10-02-2008 |
20080259274 | PORTABLE DIGITAL MEDICAL CAMERA FOR CAPTURING IMAGES OF THE RETINA OR THE EXTERNAL AUDITORY CANAL, AND METHODS OF USE - A hand-held digital camera for obtaining images of a portion of a patient's body and having a hand-held housing, a visible light source located within the housing for providing light along an illumination path from the housing aperture to the patient's body, an image sensor located within the housing that detects light returning from the patient's body along an imaging path that passes into the housing aperture, an optical system located within the housing with separate illumination and imaging paths, an external optical aperture common to the illumination and imaging systems, wherein the illumination and imaging sub-apertures are wholly contained within the common external aperture, are longitudinally coincident, and are laterally separated and non-overlapping, a digital memory device for storing captured images, an output display carried by the housing, and the ability to electronically transmit stored images. The camera can be used for retinal imaging and for otoscopy. | 10-23-2008 |
20080266520 | REFLECTANCE MEASUREMENT OF MACULAR PIGMENT USING MULTISPECTRAL IMAGING - Methods and apparatus are provided for accurately imaging, assessing and measuring a patient's macular pigment. A multiband filter is employed in combination with a color digital fundus camera to provide a method that operates with a single imaging exposure. The multiband filter has bandpass regions within spectral ranges of the red, green and blue detectors of the CCD array employed within the fundus camera, the bandpass regions being sufficiently sharply defined so as to avoid regions where the CCD detector responses spectrally overlap. This provides three discrete channels of grayscale data corresponding to the bandpass regions of the multiband filter, which can be used to calculate macular pigment topographically. Methods are also disclosed for calculating the optical density of the macular pigment and advantageously displaying the resulting data. | 10-30-2008 |
20080273172 | AUTOFLUORESCENCE PHOTOGRAPHY USING A FUNDUS CAMERA - Methods and apparatus for taking autofluorescence images with a fundus camera capable of a field of view of at least 30 degrees and preferably 50 degrees or more using high quality thin film optical interference filters. In one embodiment, a filter set is disclosed for achieving this functionality. Using these methods and/or apparatus, a practitioner can (among other procedures, which are described) take high-quality autofluorescence images of the fundus using a CCD camera that does not have to be cooled, take such images without exciting damaging photochemical reactions in the retina, detect accumulation of fluorophores in the retina prior to the significant accumulation of fluorophores in the retinal pigment epithelium, and topographically localize and quantitate retinal abnormalities and retinal pigment epithelium abnormalities. | 11-06-2008 |
20080273173 | IRIS PATTERN RECOGNITION AND ALIGNMENT - Apparatus and methods are described for aligning diagnostic and therapeutic iris images, via iris pattern recognition, for effecting more accurate laser treatment of the eye. A method for aligning a dilated pupil diagnostic iris image associated with a diagnostic measurement for calculating a laser treatment, with a constricted pupil diagnostic iris image, by identifying an iris landmark that is not identifiable solely between the two images, includes a sequential plurality of diagnostic iris images of varying pupil size such that the iris landmark can be tracked between the two images. The aligned, constricted pupil diagnostic image can then be aligned with a constricted pupil treatment image and the ablation pattern rotated accordingly. Limbal edge detection is used in the diagnostic images to provide pupil center translation information for translational alignment of the laser treatment. An improved aberrometer is disclosed having a variable visible illumination fixation target for controlling pupil size for the diagnostic images. A diagnostic and therapeutic laser eye treatment system is described incorporating the apparatus and method embodiments of the invention. | 11-06-2008 |
20080278685 | PORTABLE MODULAR VIDEO OCULOGRAPHY SYSTEM AND VIDEO OCCULOGRAPHY SYSTEM WITH HEAD POSITION SENSOR AND VIDEO OCCULOGRAPHY SYSTEM WITH ANIMATED EYE DISPLAY - A goggle based light-weight VOG system includes at least one digital camera connected to and powered by a laptop computer through a firewire connection and allows for region of interest image processing. The VOG system is a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems. The VOG system may track and record head position and goggle slippage. An animated eye display may provide data in a more meaningful fashion. An EOG system may be incorporated directly into a goggle base. The digital camera may digitally center the pupil in both the X and Y directions. A calibration mechanism may be incorporated onto the goggle base. The VOG system may be a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems. | 11-13-2008 |
20080304011 | SAFE EYE DETECTION - An eye detection system for safe detection of the eye positions of a subject estimates the distance from the eye detection system to the subject and reduces the power level of at least one primary light source of the eye detection system if the subject is too close to the eye detection system. If the subject is not too close to the eye detection system, the power level of the at least one primary light source of the eye detection system is increased, provided the power level is below a predetermined maximum power level. Primary light from the at least one primary light source reflected from the subject is sensed by an imager to obtain one or more images, from which the eye positions of the subject are estimated. | 12-11-2008 |
20080309872 | Ophthalmologic Instrument - The present invention provides an opthalmologic apparatus that can noninvasively measure the state of the lacrimal layer formed on the cornea surface and that can quantitatively measure the state of the lacrimal layer without utilizing a reflection image from the retina. | 12-18-2008 |
20080316426 | Fundus camera - A fundus camera having a function of measuring a retinal function, capable of picking up (obtaining) a sharp color image of a fundus suitable for a fundus examination and measuring a retinal function with high accuracy comprises an illumination optical system comprising a visible light source, an image-pickup optical system comprising an image-pickup element, a mode selection switch for performing switching between a fundus photographing mode and a retinal function measurement mode based on variance of an intrinsic signal of a retina made by retinal stimulation, and a control unit which controls the optical systems, wherein the unit lowers, when the retinal function measurement mode is selected, illumination intensity of the illumination optical system per unit time in illuminating the fundus than that in picking up the color fundus image, and controls the element to pick up first and second visible fundus images at different points in time. | 12-25-2008 |
20090002628 | METHOD AND APPARATUS IMPROVING VISION AND THE RESOLUTION OF RETINAL IMAGES - A method of and apparatus for improving vision and the resolution of retinal images is described in which a point source produced on the retina of a living eye by a laser beam is reflected from the retina and received at a lenslet array of a Hartmann-Shack wavefront sensor such that each of the lenslets in the lenslet array forms an aerial image of the retinal point source on a CCD camera located adjacent to the lenslet array. The output signal from the CCD camera is acquired by a computer which processes the signal and produces a correction signal which may be used to control a compensating optical or wavefront compensation device such as a deformable mirror. It may also be used to fabricate a contact lens or intraocular lens, or to guide a surgical procedure to correct the aberrations of the eye. Any of these methods could correct aberrations beyond defocus and astigmatism, allowing improved vision and improved imaging of the inside of the eye. | 01-01-2009 |
20090002629 | RETINAL CAMERA FILTER FOR MACULAR PIGMENT MEASUREMENTS - Apparatus for use in measuring the density and spatial distribution of macular pigment in an eye comprises a camera ( | 01-01-2009 |
20090027618 | Method and Arrangement for Automatic Detection and Interpretation of the Iris Structure for Determining Conditions of a Person - For automatic detection and interpretation of the iris structure for determining a condition of a person, two-dimensional recording and digitization of an eyeball with iris is realized by a recording device connected to a data processing system; selection of the iris; generation of the topography of the iris by dividing the image of the iris into images of circular ring sections; determination of features for the circular ring sections and/or of objects in the images of the circular ring sections by combining image pixels of same color or intensity to individual objects by an object isolation method; feature determination of the objects determined by the object isolation method; comparison of the determined features of the objects with features saved as classification knowledge in the data processing system; and correlation of the determined objects to body regions in accordance with the topography of the iris are performed. | 01-29-2009 |
20090033870 | Ophthalmologic information processing apparatus and ophthalmologic examination apparatus - An ophthalmologic examination apparatus | 02-05-2009 |
20090033871 | Opthalmic optical coherence tomography (OCT) test station using a 1um fiber ASE source - A phosphate glass 1-μm fiber ASE source provides high power and broadband emission that covers wavelengths on the short side of Yb-doped silica. A single-mode fiber formed from phosphate glass is doped with highly elevated concentrations of Yb dopants 0.5-30 wt. % and typically 2-10 wt. %, far higher than either silica or germano-silicate. The high concentration of Yb dopant absorbs the pump in a short length, typically 10-150 cm instead of tens of meters, to provide high saturated output power and a shifted emission spectrum. The excess power allows the fiber ASE source to be configured to provide the output powers, emission bandwidth and stability desired by many applications. Furthermore, the ASE can be configured to emit a nearly Gaussian spectral profile without sacrificing power or bandwidth. The backward emission spectrum of Yb-doped phosphate glass is centered near 1020 nm instead of 1060, which allows the ASE source to cover wavelength on the short side of Yb-doped silica, which may be important in certain applications such as ophthalmic OCT where water absorption has a transparency window. | 02-05-2009 |
20090046248 | Ocular scanning device with programmable patterns for scanning - A device that projects light rays and beams onto the eye in a predetermined pattern or arrangement of patterns, wherein the light rays or beams scatter in the eye tissues and which images of scatter are captured by video scanning cameras. The images are transferred into digital information for processing, storage, display or retrieval by a processing device which also determines the location, and position of the scattered light in space and prepares a mathematical representation of the light representing the shape, thickness, and relationship of the tissues of the eye. | 02-19-2009 |
20090059169 | Eye refractive power measurement apparatus - An eye refractive power measurement apparatus capable of performing analysis of an examinee's eye for irregular astigmatism with accuracy comprises a measurement optical system comprising an optical system projecting measurement light onto an examinee's fundus and an optical system photo-receiving the measurement light as a ring or substantially-ring fundus reflection image, a light deflection member placed in the optical systems, a unit rotating the deflection member, a memory storing the photo-received image as a measurement image, an analysis unit performing analysis of the measurement image, and an output unit, wherein the analysis unit detects the number of images or a width of an image in each meridian direction in the measurement image and judges the eye has irregular astigmatism when a portion in which the number of the images is two or a portion in which the width of the image goes beyond a predetermined level is detected. | 03-05-2009 |
20090073381 | IRIS IMAGING SYSTEM AND METHOD FOR THE SAME - An iris imaging system is provided. The iris imaging system includes at least one light source configured to illuminate an iris at a spectrum of light. The iris imaging system also includes at least one image capturing device including at least one of an indium-gallium-arsenide, lead sulphide, and lead selenide based detector and configured to capture an image of the iris via light reflected from the iris at the spectrum. The device is further configured to provide a signal representing one or more features of the iris in response to the light reflected from the iris. | 03-19-2009 |
20090079936 | DEVICE FOR TAKING PHOTOGRAPHS OF THE FUNDUS OF THE EYE (FUNDUS OCULI) - The device is used for taking photographs of the fundus of the eye (fundus oculi). It comprises: A) an illumination source ( | 03-26-2009 |
20090086164 | Fundus imaging apparatus - A fundus imaging apparatus comprises: an irradiation optical system comprising a light source which emits a laser beam and a scanner which two-dimensionally scans the laser beam on a fundus of an examinee's eye, the irradiation optical system being adapted to focus the laser beam emitted from the light source on the fundus to form a confocal region; an imaging optical system comprising a photo-receiving element which receives reflection light of the laser beam reflected from the fundus, the imaging optical system being adapted to focus the reflection light from the fundus and receive the reflection light by the photo-receiving element; and a beam restriction member placed in an optical path of the imaging optical system, the beam restriction member comprising: one of an opening through which part of the reflection light from the fundus outside the confocal region is allowed to pass toward the photo-receiving element and a mirror part which reflects the part of the reflection light from the fundus outside the confocal region toward the photo-receiving element; and a light shielding part which shields the reflection light from the fundus in the confocal region and the part of the reflection light from the fundus outside the confocal region. The light shielding part includes a first light shielding part placed in a conjugate position with a focus point of the laser beam on the fundus and a second light shielding part placed in a nearly conjugate position with the fundus and adapted to shield part of an optical path of the reflection light, the second light shielding part is formed around the first light shielding part. | 04-02-2009 |
20090096986 | Unit and Method for Internally Guiding Vision in Fundus Cameras - The present invention is directed to an optoelectronic unit for directing the eye gaze of the patient during examination or documentation of the fundus of the eye. The solution according to the invention for internal eye gaze guidance in fundus cameras provides a spatial light modulator for generating the fixation mark comprising imaging optics by which the displayed fixation mark is imaged on the eye fundus by a semitransparent mirror arranged in an observation beam path and via a swivel mirror arranged in a documentation beam path. The spatial light modulator is connected by a control unit to an actuating element for positioning the fixation mark. The device, which is preferably provided for fundus cameras, can facilitate the diagnosis of diseases of the eye fundus in that the documented recordings can be exactly reproduced and therefore exactly compared. In particular, the tracking and presentation of the course of diseases can be improved in this way. | 04-16-2009 |
20090096987 | Eye Measurement Apparatus and a Method of Using Same - An apparatus for measuring a subject's eye having an instrument axis, comprising an eye tracker apparatus comprising a first projector and a first camera, a slit projector rotatable about the instrument axis independent of the eye tracker apparatus, and a second camera rotatable about the instrument axis independent of the eye tracker. | 04-16-2009 |
20090096988 | OPTOMECHANICAL AND DIGITAL OCULAR SENSOR READER SYSTEMS - System, methods, and devices are described for eye self-exam. In particular, optomechanical and digital ocular sensor reader systems are provided. The optomechanical system provides a device for viewing an ocular sensor implanted in one eye with the other eye. The digital ocular sensor system is a digital camera system for capturing an image of an eye, including an image of a sensor implanted in the eye. | 04-16-2009 |
20090103048 | METHOD AND SYSTEM FOR PUPIL DETECTION - A method for detecting a location of a pupil. The method involves projecting a modulated light at a first phase towards a face from a lighting source located near an optical axis of a modulated light camera, concurrently projecting a modulated light at a second phase towards the face from a lighting source located off the optical axis of the modulated light camera, where the first phase and the second phase are different; receiving a light reflected from the face; and generating an image from the light reflected from the face, where the image indicates the location of the pupil. | 04-23-2009 |
20090103049 | METHOD FOR CORRECTING PATIENT MOTION WHEN OBTAINING RETINA VOLUME USING OPTICAL COHERENCE TOMOGRAPHY - A computer-implemented method of correcting for motion of a sample during OCT imaging obtains a series of cross-sectional volume scans through the sample at different positions on a first coordinate axis, obtains at least two cross-sectional alignment scans in planes intersecting said volume scans at an angle, and stores the alignment scans and the volume scans in memory. The alignment scans are matched to the volume scans at lines of intersection thereof to determine the relative displacement of the volume scans to the sample due to sample motion. The relative displacement is used to correct for motion of the sample between successive volume scans. | 04-23-2009 |
20090115964 | Ophthalmic Photographing Apparatus - To provide an ophthalmic photographing apparatus capable of checking a measurement (photographing) position of a tomographic (cross-sectional) image of a fundus on a front (surface) image of the fundus. | 05-07-2009 |
20090128775 | System for obtaining a fundus image - The present invention is related to a system for obtaining a fundus image, constituted by optical means implemented in an equipment to observe and photograph the image of the wall fundus ( | 05-21-2009 |
20090128776 | FUNCTIONAL IMAGING OF THE RETINA - An apparatus and a method for obtaining, in vivo, a measurement of retinal response to an optical stimuli. Light sources provide optical stimuli to the retina in accordance with predetermined stimulation sequences, and images of the retina are obtained and correlated with the predetermined stimulation sequences so as to determine responses of the retina to the optical stimuli. In one particular embodiment, optical stimuli are provided according to m-sequences and correlated with corresponding optical coherence tomography images to determine a functional response of the retina. | 05-21-2009 |
20090147217 | Apparatus, Methods and Systems for Non-Invasive Ocular Assessment of Neurological Function - A portable, non-invasive binocular scanning apparatus for rapid assessment of neurological function in cases of potential trauma, disease, and/or exposure to chemical treat agents. The scanning apparatus may utilize a combination of light sources for the measurement and assessment of pupillary response, retinal imagery, and/or other ophthalmologic biomarkers. The scanning apparatus can detect and assess a wide range of neurological and physiological conditions by obtaining pertinent measurements from the retina and pupil in real time. | 06-11-2009 |
20090153797 | Integrated Retinal Imager And Method - A system and method are presented for use in imaging the patient's retina. A light source unit is provided including a light emitting diode (LED) arrangement comprising multiple LEDs of different wavelength ranges. A light guide arrangement is used with the LEDs arrangement and is configured for coupling light from the LEDs and providing output light beams of a desired shape. The illuminating light is directed towards a region on the retina, and light returned from the illuminated region is collected and directed to an image detector unit. The invention enables the use of LED light at high intensity as required in the eye retina imaging, while maintaining the required high-quality imaging. Also, the invention provides for simultaneous or quasi-simultaneous as well as high-speed imaging in FA and ICG imaging procedures, thereby satisfying a long felt need in ophthalmology. Also, the invention provides for automated illumination or light exposure control to optimize overall light exposure to the patient eye and best acquired image quality in terms of brightness, contrast and image signal-to-noise ratio. | 06-18-2009 |
20090153798 | Device and method for monitoring, documenting and/or diagnosing the fundus - The present invention is directed to a device and a method for the observation, documentation and/or diagnosis of the fundus in which the diagnosis is carried out by evaluating the documented images of the fundus. The device according to the invention comprises an ophthalmological examination device, a multi-spectral sequential illumination module, an image recording module, a control and safety module, and an evaluating unit. The illumination module which is connected to the ophthalmologic examination device has at least two individual light sources and which can be regulated individually with respect to intensity and duration and which emit monochromatic light of different wavelengths. The light coming from the illumination module is imaged on the image recording module from the ophthalmologic examination device by the eye being examined. The control and safety module controls the chronological sequence, duration and intensity of the individual light sources and monitors the light stress. An evaluating unit evaluates the recordings of the fundus transmitted by the image recording module. The inventive solution serves to record monochromatic images of the retina, for example, red, green, blue, or also infrared, and to record fluorescence images. | 06-18-2009 |
20090153799 | Vision Screener - An article and method for screening vision are described that does not require verbal input from a test person or the test person to maintain a fixed position during the screening. The article includes an image capture device, at least one test light, a processing unit that includes an interpretive program, and a display. The method comprises capturing an image of a person's eyes, verifying the image, studying the image, evaluating the image, and displaying the results. Conveniently, the article and method require no special training by an operator. | 06-18-2009 |
20090168018 | OPTICAL SYSTEM FOR A FUNDUS CAMERA - The invention is directed to an optical system for a fundus camera in which lens pairs are tilted relative to the imaging beam path to prevent flare. This tilting is carried out in two planes and these planes are preferably oriented perpendicular to one another. | 07-02-2009 |
20090168019 | Non-Invasive Measurement of Tear Volume Systems and Methods - Devices systems, and methods can measure, diagnose and/or characterize an eye of a patient, including physiologic and optical properties, such as hydration and tear volume in relation to an optical surface of the eye, including topography of a corneal surface of the eye and/or a wavefront elevation map of the eye. The system forms an image of a tear meniscus along an eyelid. The eye can be illuminated so that the meniscus appears as a dark band in the image. Tear volume can be determined by measuring a height across the tear meniscus. The tear volume can be used to determine the optical properties of the tear of the eye and to diagnose conditions of the eye. The patient can be screened for treatment of the eye with refractive surgery using a measured pupil size, hydration and topography and/or wavefront. | 07-02-2009 |
20090201466 | Goggles - Goggles provide various features including skirt that mounts to a frame of the goggles. The skirt may be elastic and may include damper portions at least partially extending into the elastic skirt to allow the elastic skirt to have travel and to thereby better conform to the facial features of a subject. The goggles may include an overhead mounting location such as a chamber that encloses movement, such as infrared light sources and/or cameras. Furthermore, the goggles may include infrared mirrors that are retained by a bracket mounted to the frame, where the bracket has a portion affixed to the frame that retains another portion that is movable and that is affixed to the infrared mirrors. | 08-13-2009 |
20090201467 | FUNDUS PHOTO-STIMULATION SYSTEM AND METHOD - An eye examination device has a fundus observation system and an optical stimulation system. The optical stimulation system has an optical targeting subsystem and an optical stimulation subsystem, wherein the optical stimulation system is structured to be used to provide light stimulation to a portion of a fundus of an eye targeted by the optical targeting subsystem in conjunction with observations made with the fundus observation system. | 08-13-2009 |
20090207376 | Apparatus for cross-sectional imaging of anterior ocular segment - An apparatus for cross-sectional imaging of an anterior ocular segment wherein a stationary cylindrical body disposed projecting out from a body of the apparatus, and an illuminating optical system and an imaging optical system are disposed within the cylindrical body with a front aperture of the cylindrical body as a common aperture thereof so as to be rotatable in unison about an eye-side optical axis of the illuminating optical system. At least one proximal direction reflecting mirror being disposed within an interior of the cylindrical body in proximity to the front aperture for reflecting scattered light by an examined eye on an optical axis of the imaging optical system to a direction proximate to an optical axis of the illuminating optical system. | 08-20-2009 |
20090213328 | Telecentric lens system and vision measuring instrument - A telecentric lens optical system includes: a front lens group; a rear lens group having a front focal point coinciding with a rear focal point of the front lens unit; and diaphragm mechanisms, each of which is disposed at a position where the rear focal point of the front lens unit and the front focal point of the rear lens unit coincide with each other. One of the front lens group and the rear lens group is provided by a plurality of variable magnification lens groups. The diaphragm mechanisms are provided corresponding to the variable magnification lens groups, respectively. A magnification switching mechanism is provided to selectively move a pair of one of the variable lens groups and one of the corresponding diaphragm mechanisms to be disposed on an optical axis of the other of the front lens group and the rear lens group. | 08-27-2009 |
20090213329 | EVALUATING PUPILLARY RESPONSES TO LIGHT STIMULI - Solutions for evaluating the pupillary responses of a patient are disclosed. An illustrative method includes alternately exposing a first eye and a second eye of the patient to light stimulation in successive intervals, the light stimulation provided by at least one light source controlled by at least one computing device; concurrently capturing, with at least one image device controlled by the at least one computing device, image data of the first eye and the second eye during the exposing; and using the at least one computing device to perform the following: determine a center point of the first eye within the image data of the first eye and a center point of the second eye within the image data of the second eye; obtain image data of a first half of the first eye having an edge defined by a line of pixels intersecting the determined center point of the first eye; obtain image data of a second half of the second eye, the second half of the second eye opposing the first half of the first eye and having an edge defined by a line of pixels intersecting the determined center point of the second eye; create a composite image including the image data of the first half of the first eye and the image data of the second half of the second eye; and provide the composite image for evaluation. | 08-27-2009 |
20090231543 | Ocular light stimulus apparatus - A stimulus light from a stimulus light source is projected to the retina of an ocular fundus under examination to stimulate the retina in localized fashion to generate a bioelectric signal from the retina. The stimulus light source is mounted on a movable block, and an operating lever is used to move the stimulus light source to change the stimulus light on the retina. The size of the stimulus light can also be varied using a panel having a plurality of openings with different diameters for allowing the stimulus light to pass through. This assures a reliable local ERG examination because the bioelectrical signal can be produced in a wider area of the retina. The operating lever is further fixed by inserting a cap to keep the projected stimulus light unchanged. This allows the burden on the examiner to be reduced remarkably, assuring a reliable local ERG examination. | 09-17-2009 |
20090244482 | LASER SCANNING DIGITAL CAMERA WITH SIMPLIFIED OPTICS AND POTENTIAL FOR MULTIPLY SCATTERED LIGHT IMAGING - A portable, lightweight digital imaging device uses a slit scanning arrangement to obtain an image of the eye, in particular the retina. The scanning arrangement reduces the amount of target area illuminated at a time, thereby reducing the amount of unwanted light scatter and providing a higher contrast image. A detection arrangement receives the light remitted from the retinal plane and produces an image. The device is operable under battery power and ambient light conditions, such as outdoor or room lighting. The device is noncontact and does not require that the pupil of the eye be dilated with drops. The device can be used by personnel who do not have specialized training in the eye, such as emergency personnel, pediatricians, general practitioners, or volunteer or otherwise unskilled screening personnel. Images can be viewed in the device or transmitted to a remote location. The device can also be used to provide images of the anterior segment of the eye, or other small structures. Visible wavelength light is not required to produce images of most important structures in the retina, thereby increasing the comfort and safety of the device. Flexible and moderate cost confocal and fluorescent imaging, multiply scattered light images, and image sharpening are further functionalities possible with the device. | 10-01-2009 |
20090244483 | FUNDUS CAMERA - A fundus camera favorably performing focusing on a fundus of an examinee's eye without a black dot plate in a target projection optical system comprises an illumination optical system comprising a light source and an objective lens, a photographing optical system comprising a focusing lens movable in the optical axis direction and a diopter correction lens to correct a diopter of severe ametropia, a first moving mechanism comprising a first driving unit moving the focusing lens, a focus detection optical system comprising a projection optical system comprising a light source and a photo-receiving optical system comprising a photodetector, a second moving mechanism comprising a second driving unit moving a part of the detection optical system including at least one of the projection light source and the photodetector in the optical axis direction, a monitor, and a control unit controlling the second unit in conjunction with movement of the focusing lens. | 10-01-2009 |
20090251665 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS - An ophthalmologic photographing apparatus is disclosed which is capable of photographing a predetermined area of a subject's eye. The apparatus includes a light projecting unit configured to project visible light to a subject's eye, a detection unit configured to measure a pupil diameter, which is caused by the light projecting unit, and a control unit configured to determine the amount of change in diameter and to control a photographing operation based on the amount of change determined by the control unit. | 10-08-2009 |
20090257024 | OPHTHALMOLOGICAL INSTRUMENT - A homogeneously illuminating ophthalmic instrument includes an illumination device having a source of illumination, a homogenizing unit and a projection device, at least one organic or inorganic source of radiation with spectrally selective emission being used as a source of illumination. The illumination generated in this way enables correspondingly adapted visual and/or digital observation, recording or display of the examined regions of the eye by a visualizing unit. | 10-15-2009 |
20090257025 | Ophthalmological measuring apparatus - An opthalmological measurement apparatus ( | 10-15-2009 |
20090262303 | FUNDUS CAMERA - A fundus camera includes an optical path splitting unit arranged between a focusing unit and an imaging unit. The optical path splitting unit has characteristics adapted to reflect light of a visible light region and to transmit near-infrared light. The optical path splitting unit retreats from an optical path when a still fundus image is photographed. A quick-return mirror having such characteristics is used as the optical path splitting unit. When near-infrared illumination light having a wavelength of about 850 nm is used, such light can be incident upon the imaging unit without loss of the amount of light. In addition, visible light output from an internal fixation target is projected onto a subject's eye. Further, a cornea diaphragm and a crystalline lens diaphragm are used for observing a fundus with invisible light. Each of the cornea diaphragm and the crystalline lens diaphragm can be changed to another one having a different diameter. | 10-22-2009 |
20090268159 | AUTOMATED ASSESSMENT OF OPTIC NERVE HEAD WITH SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHY - A fully automated optic nerve head assessment system, based on spectral domain optical coherence tomography, provides essential disc parameters for clinical analysis, early detection, and monitoring of progression. | 10-29-2009 |
20090268160 | FUNDUS CAMERA - A fundus camera includes a focus target projection unit including a focus target located at a position conjugate with a fundus of a subject's eye, a split optical element configured to split a light flux passing through the focus target, and a focus target illumination light source configured to illuminate the focus target, a fundus photographing optical system including a focusing lens, a focus link mechanism configured to interlockingly move the focus target projection unit and the focusing lens in a direction of an optical axis, at least two lenses located behind a plane optically conjugate with the imaging plane of the fundus photographing optical system and outside an optical axis of the fundus photographing optical system, image sensors respectively located behind the two lenses, and a phase difference detection unit configured to detect a phase difference between the focus target images based on signals output from the image sensors. | 10-29-2009 |
20090279051 | FUNDUS CAMERA - A fundus camera includes a fundus photographing optical system including an image-recording image sensor for photographing a fundus image via a focusing lens, a focus target having a plurality of regions for forming light fluxes passing through a plurality of different areas on pupil of a subject's eye, and a focus drive unit for driving the focusing lens based on positions of a plurality of images of the focus target in an image captured by the image-recording image sensor and on contrast of the images. | 11-12-2009 |
20090290124 | REFLECTANCE MEASUREMENT OF MACULAR PIGMENT USING MULTISPECTRAL IMAGING - Imaging apparatus and filters are provided for accurately imaging, assessing and measuring a patient's macular pigment. A multi-band filter is employed in combination with a color digital fundus camera to provide a method that operates with a single imaging exposure. The multiband filter has bandpass regions within spectral ranges of the red, green and blue detectors of the CCD array employed within the fundus camera, the bandpass regions being sufficiently sharply defined so as to avoid regions where the CCD detector responses spectrally overlap. This provides three discrete channels of grayscale data corresponding to the bandpass regions of the multiband filter, which can be used to calculate macular pigment topographically. Methods are also disclosed for calculating the optical density of the macular pigment and advantageously displaying the resulting data. | 11-26-2009 |
20090303437 | OPHTHALMOLOGICAL DEVICE AND OPHTHALMOLOGICAL MEASURING METHOD - An opthalmologic device and an opthalmologic measuring method in accordance with an embodiment of the present application in which, cross-sectional images of cross-sectional portions illuminated from different instrument positions by a light projector are captured in Scheimpflug configuration. Furthermore, corresponding top view images are also captured from the different instrument positions. At least one reference section and at least one comparative section are extracted from an initial instrument position or from an advanced instrument position, respectively. The displacement between the reference section and the comparative section is determined and the cross-sectional images are positioned relative to one another, based on the displacement. A coherent examination of the entire eye is made possible in which the relative movements of the eye with respect to the device, particularly rotational movements, are taken into consideration. | 12-10-2009 |
20090303438 | Ophthalmic photographing apparatus - An ophthalmic photographing apparatus comprising a photographing optical system for obtaining a regional image of an examinee's eye, comprising a light source, a focusing optical element movable in an optical-axis direction by a driving mechanism, and a photodetector, and a control unit controlling driving of the mechanism and obtain the image based on a signal from the photodetector, wherein the control unit further moves the optical element in predetermined steps/continuously to obtain the image at each position, calculates frequency distribution of luminance of each of the images to detect a change characteristic of luminance values having frequencies equal or exceeding a threshold value in the frequency distribution with respect to the optical element position, and detects a focus position of the optical element based on the change characteristics to move the optical element to a position corresponding to the detected focus position. | 12-10-2009 |
20090323021 | MEDICAL IMAGING APPARATUS - A medical imaging apparatus capable of concurrently performing a plurality of imaging operations including an imaging sequence setting unit configured to set a sequence for each of the plurality of imaging operations, an overlapping determination unit configured to determine temporal overlapping between an imaging sequence of an imaging operation that is currently performed and an imaging sequence for an imaging operation that is to be started, and an imaging sequence adjustment unit configured to adjust, based on a result of determination made by the overlapping determination unit, the imaging sequence for the imaging operation that is to be started. | 12-31-2009 |
20090323022 | MEDICAL IMAGING APPARATUS - A medical imaging apparatus includes an imaging unit configured to capture an image of a subject, an imaging sequence registration unit configured to register an imaging sequence, and a display unit configured to display the imaging sequence registered by the imaging sequence registration unit. | 12-31-2009 |
20100007848 | Optical tomographic image photographing apparatus - An apparatus has an optical system detecting spectral information and having an optical scanner and a driving unit changing the optical path length by moving an optical member, a monitor, and a unit controlling the driving unit, obtaining a tomographic image by performing Fourier analysis on the information and displaying the obtained image, in which a front surface of an examined object is positioned on the back side of a depth position where optical path lengths of measurement light and reference light become equal to obtain a normal image of the tomographic image, the front surface of the examined object is positioned on the front side of the depth position to obtain an inverted image of the tomographic image, and at least one of dispersion correction processing corresponding to the information and image combining processing is performed on both normal and inverted images, and the images are displayed. | 01-14-2010 |
20100014051 | OPHTHALMOLOGICAL MEASUREMENT APPARATUS AND MEASUREMENT METHOD - An ophthalmological measurement apparatus ( | 01-21-2010 |
20100026956 | OPHTHALMIC APPARATUS AND OPHTHALMIC METHOD FOR POSITIONING AN EYE OF A PATIENT IN A PREDETERMINED NOMINAL POSITION - An ophthalmic apparatus including a supporting device for a patient and an eye treatment device. The apparatus includes a contact element for spatially fixing an eye of the patient with respect to the treatment device, and a positioning device for shifting the supporting device and a contact element relative to each other in order to position the eye, before it is fixed using the contact element, at a predetermined nominal position relative to the contact elements. The ophthalmic apparatus includes a detection device, which records an image of the eye of the patient present on the supporting device and, on the basis of said recorded image, determines an indication concerning a relative shift of the supporting device with respect to the contact element, which shift is required to move the eye to the nominal position by means of the positioning device. | 02-04-2010 |
20100033676 | APPARATUS AND METHOD FOR OBSERVING AN EYE, AS WELL AS OCT-MODULE - An apparatus for observing an eye comprises an imaging device ( | 02-11-2010 |
20100039615 | DEVICE FOR OBTAINING AN IRIS IMAGE - The invention is aimed at simplifying the structure, operating conditions and ensuring a required placement of an individual to be identified in the focal plane of the optical system, in order to obtain a sharp image of the iris. The above object has been achieved by the fact that a device for obtaining an iris image comprises an image recording means | 02-18-2010 |
20100039616 | OPTICAL IMAGE MEASUREMENT DEVICE AND PROGRAM FOR CONTROLLING THE SAME - A fundus oculi observation device | 02-18-2010 |
20100053553 | METHOD AND APPARATUS FOR RETINAL DIAGNOSIS - The invention relates to a method and an appliance for examination of the retina, with two-dimensional images of the retina being produced. The invention is based on the object of designing the method and the apparatus so as to allow comprehensive examination and diagnosis of the eye retina in a simple manner. The invention proposes that second data items and two-dimensional depth slice images be produced from the retina, and that the position of these second data items be known in the recorded two-dimensional image of the retina, and/or be predetermined on the basis of the two-dimensional image. | 03-04-2010 |
20100060853 | SYSTEM AND METHOD FOR IMAGING RETINAL TISSUE WITH TISSUE GENERATED LIGHT - A system and method for imaging retinal tissues in an eye generates an input light beam having ultra-short pulses and an input wavelength (λ | 03-11-2010 |
20100060854 | FINITE ELEMENT MODEL OF A KERATOCONIC CORNEA - A system and method for diagnosing the onset of keratoconus in a cornea requires subjecting the cornea of an eye to a pressure that changes its shape. A topography of the cornea's anterior surface (possibly, the posterior surface also) is mapped. The mapped topography is then fitted on a mathematical model of the cornea. Measurements corresponding to biomechanical parameters in the cornea are then taken from the model. Next, a computer is used to evaluate the biomechanical parameters to diagnose whether the cornea is keratoconic. | 03-11-2010 |
20100060855 | SYSTEM AND METHOD FOR AXIS IDENTIFICATION IN ASTIGMATIC CATARACT SURGERY - A method and system for identifying an astigmatic axis having a camera and light mounted to a slit lamp for taking a photo of a patient's eye. A template having a rotatable dial is set using a schematic diagram. The template is transferred to the photo and the correct axis is marked through slots on the template. | 03-11-2010 |
20100073633 | FUNDUS CAMERA - A fundus camera wherein when a photography start switch is selected, the optical axis of an eye examining section is aligned with the optical axis of an eye by a detection operation of an alignment optical system. After focusing of a fundus image is performed, the eye examining section is moved to a first recording mode position, and a first photograph of the fundus is taken by a stroboscopic tube. Subsequent to taking the first photograph of the fundus, a base length is changed and an alignment position is moved to a second recording mode position so that a second photograph of the fundus is taken. | 03-25-2010 |
20100073634 | Hybrid Spectral Domain Optical Coherence Tomography Line Scanning Laser Ophthalmoscope - An apparatus for imaging an eye includes a housing and a system of optical components disposed in the housing. The apparatus is capable of operating in a line scanning laser opthalmoscope (LSLO) mode and an optical coherence tomography (OCT) mode. The system of optical components can include a first source to provide a first beam of light for the OCT mode and a second source to provide a second beam of light for the LSLO mode. In the OCT mode, a first optic is used that (i) scans, using a first surface of the first optic, the first beam of light along a retina of an eye in a first dimension, and (ii) descans, using the first surface, a first light returning from the eye in the first dimension to a detection system in the OCT mode. In the LSLO mode, the first optic is used where the second beam of light passes through a second surface of the first optic. | 03-25-2010 |
20100085538 | EYE FUNDUS CAMERA - A single-plate image pickup element picks up an eye fundus image. A tricolor separation color filter includes R, G, and B filter elements arranged in a mosaic so as to correspond to the pixels of the image pickup element. Each virtual pixel value of color image data is calculated from light detection data of adjacent pixels. Thus, image data of a color still image is generated. The R filter elements transmit near-infrared light. Each virtual pixel value is calculated from light detection data of pixels corresponding to B or G filter elements that are adjacent to the R filters and have sensitivity to near-infrared light. Thus, image data of a near-infrared light monochrome moving image is generated. | 04-08-2010 |
20100085539 | MENTAL FATIGUE DETECTING METHOD AND DEVICE - A mental fatigue detection device for detecting mental fatigue without arbitrariness using a flickering light includes: a light-emitting unit ( | 04-08-2010 |
20100097573 | APPARATUS AND METHOD FOR IMAGING THE EYE - A slit lamp mounted eye imaging device for viewing wide field and/or magnified views of the retina or the anterior segment through an undilated or dilated pupil. The apparatus images posterior and anterior segments of the eye, and sections/focal planes in between and contains an illumination system that uses one or more LEDs, shifting optical elements, and/or aperture stops where the light can be delivered into the optical system on optical axis or off axis from center of optical system and return imaging path from the retina, thereby creating artifacts in different locations on retina. Image processing is employed to detect and eliminate artifacts from images. The device is well suited for retinal imaging through an undilated pupil, non-pharmacologically dilated, or a pupil as small as 2 mm. Two or more images with reflection artifacts can be created and subsequently recombined through image processing into a composite artifact-free image. | 04-22-2010 |
20100097574 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS - Upon detecting a selection of an examination start button, a start and completion management unit starts an examination. The control unit switches an observation state to an infrared light observation by an observation switching unit. Next, an examiner performs alignment while observing an eye to be examined, and photographs the eye to be examined with a photographing unit. The start and completion management unit determines whether the examination is completed according to a selection of an examination complete button, and repeats the alignment until it is determined that the examination is completed. | 04-22-2010 |
20100097575 | OPHTHALMOLOGICAL PHOTOGRAPHIC APPARATUS - An opthalmological photographic apparatus includes an observation moving-image photographic unit configured to photograph an observation moving image of a subject's eye, a still-image photographic unit configured to photograph a still image of the subject's eye, an image display unit configured to display at least one of the observation moving image and the still image, and a display content control unit configured to cause the image display unit to display one of the observation moving image and the still image when the still-image photographic unit photographs a still image. | 04-22-2010 |
20100103374 | CONNECTION ADAPTER, OPTICAL TOMOGRAPHIC IMAGING APPARATUS, PROGRAM FOR EXECUTING IMAGING METHOD AND MEMORY DEVICE FOR THE PROGRAM - Provided is a connection adapter that is capable of constituting an optical tomographic imaging apparatus having a small installation space and high use efficiency. A connection adapter is disposed between the fundus camera main body portion and a camera portion to be attached to the fundus camera main body portion for imaging a surface image of a fundus as an object in an optical tomographic imaging apparatus, and connects them in a detachable manner. The connection adapter includes: a first light guide unit for guiding tomographic image measuring beams guided from the fundus camera main body portion for imaging the tomographic image to a tomographic imaging portion; and a second light guide unit for guiding fundus image measuring beams guided from the fundus camera main body portion for imaging the surface image of the fundus to the camera portion. | 04-29-2010 |
20100110374 | Apparatus and method for two eye imaging for iris identification - The apparatus represents a device having one or two sensors for capturing a single image or two images having the subject's eyes, in which a dimension, such as the horizontal axis, with respect to pixels in the single image or two first images characterizing zero head tilt, and processors in one or more of a housing with the one or two sensors or in a computer system which receives the single image or two images. Such processors determine a head tilt angle between a virtual line extending between the two eyes of the subject in accordance with predefined features, such as pupil or iris center, in the single image or two images and the dimension characterizing zero head tilt, segment left and right iris images from the single image or two images, and rotate the segmented left and right iris image in accordance with the angle to substantially remove head tilt when present. A database of identification data may be provided storing at least templates representative of right and left irises of a plurality of subjects without substantial head tilt, and the processors generate template(s) representative of the left and right irises of the subject, which are either added or compared to the identification data. The processor may also determine interpupillary distance (IPD) or IPD-to-iris ratio using the single image or two images, and as such may be used for comparative searching of the identification data having IPD or IPD-to-iris ratio of the plurality of subjects. | 05-06-2010 |
20100110375 | OPTICAL IMAGE MEASUREMENT DEVICE - A device 1 is an OCT device that splits a low-coherence light L | 05-06-2010 |
20100110376 | VARIABLE RESOLUTION OPTICAL COHERENCE TOMOGRAPHY SCANNER AND METHOD FOR USING SAME - The invention relates generally to optical tomographic imaging and in particular to systems and methods for adapting the resolution of imaging. One embodiment of the present invention is an apparatus for optical coherence tomography imaging, characterized by its ability to vary the axial resolution and scanning speed during imaging. | 05-06-2010 |
20100118266 | SYSTEM, METHOD, AND COMPUTER SOFTWARE CODE FOR GRADING A CATARACT - A method for grading a cataract, the method including creating a three-dimensional image of at least most of a lens of an eye having a cataract from information received from an imaging system, comparing the three-dimensional image with a first template to determine an optical density of the lens, and determining a grade for the cataract based on the comparison of the optical density of the lens and a volume of the first template. A system and computer software code for grading a cataract are also disclosed. | 05-13-2010 |
20100123871 | FUNDUS CAMERA - A fundus camera includes an illumination unit which includes an optical element configured to irradiate an eye fundus with visible light from a position conjugate with an anterior eye portion of an eye to be examined, and an imaging unit configured to take an image of the eye fundus with light which is emitted from the illumination unit and reflected from the eye fundus, wherein the illumination unit includes a blue LED chip and a fluorescent member that is excited by light emitted from the blue LED chip and emits fluorescence, and the fluorescent member is irradiated again with apart of the light reflected by the optical element. | 05-20-2010 |
20100134759 | DIGITAL IMAGING SYSTEM FOR EYE PROCEDURES - Described herein is a hand-held gonioscopic imaging system that can be used to continuously display, capture and record images of the iridocorneal angle within the eye during implantation procedures. The system can be used, for example, during device implantation procedures for the treatment of glaucoma such that landmark identification continues during implantation. Intuitive real-time images viewed through the imaging systems described herein appear to the user to move in the same horizontal orientation as the instrument is actually being moved. The systems described herein also provide independent illumination sources for the camera and the surgical microscope that also have independent illumination controls. | 06-03-2010 |
20100134760 | SYSTEMS AND METHODS FOR IMPLANTING AND EXAMINING INTRAOCULAR LENS - Systems and methods for designing and implanting a customized intra-ocular lens (IOL) is disclosed. In one embodiment, a system includes an eye analysis module that analyzes a patient's eye and generates biometric information relating to the eye. The system also includes eye modeling and optimization modules to generate an optimized IOL model based upon the biometric information and other inputted parameters representative of patient preferences. The system further includes a manufacturing module configured manufacture the customized IOL based on the optimized IOL model. In addition, the system can include an intra-operative real time analyzer configured to measure and display topography and aberrometry information related to a patient's eye for assisting in proper implantation of the IOL. | 06-03-2010 |
20100141895 | SCANNING OPHTHALMOSCOPES - A scanning opthalmoscope ( | 06-10-2010 |
20100149487 | SYSTEM AND METHOD FOR FAST RETINAL IMAGING - An optical system and measurement method for imaging three-dimensional objects with low light scatter comprising at least one source of radiation; a radiation projection means for creating a set of foci through a volume of an object; and a means for imaging the returned light from the set of foci on at least one camera, wherein the imaging of the volume of the object is at a different angle from the projection, allowing for detection of the returned light on separate camera pixels. The measurement method further comprises projecting a longitudinal grid of elongated foci through the volume of an object; imaging returned light from the object at a different angle on at least one camera, so as to avoid overlapping the elongated images; and analyzing the imaged, returned light to yield depth information of the object at a multiplicity of points. | 06-17-2010 |
20100149488 | APPARATUS AND METHOD FOR OBJECTIVE PERIMETRY VISUAL FIELD TEST - Apparatus for testing a subject's visual field includes a data processor, which can be provided by a general purpose computer, coupled to a pupil tracking system. The data processor is programmed to cause targets to be displayed at different locations on a display screen and to determine from the pupil tracking system whether the subject's pupil has moved in response to display of each target. In some embodiments, the pupil tracking system comprises an infrared camera. | 06-17-2010 |
20100149489 | FUNDUS OCULI OBSERVATION DEVICE AND PROGRAM FOR CONTROLLING THE SAME - A fundus oculi observation device | 06-17-2010 |
20100149490 | COMPACT ADAPTIVE OPTIC- OPTICAL COHERENCE TOMOGRAPHY SYSTEM - Badal Optometer and rotating cylinders are inserted in the AO-OCT to correct large spectacle aberrations such as myopia, hyperopic and astigmatism for ease of clinical use and reduction. Spherical mirrors in the sets of the telescope are rotated orthogonally to reduce aberrations and beam displacement caused by the scanners. This produces greatly reduced AO registration errors and improved AO performance to enable high order aberration correction in a patient eyes. | 06-17-2010 |
20100157244 | Virtual Microscope System for Monitoring the Progress of Corneal Ablative Surgery and Associated Methods - A system for visualizing an eye of a patient during corneal surgery includes a processor and a first and second camera in signal communication with the processor. The cameras are positionable for focusing on a cornea positioned for surgery. A first and a second display and optics therefor are in signal communication with the processor and are positionable for viewing through a first and a second eyepiece of a stereo microscope, respectively. Software is resident on the processor for receiving a first and second corneal image from the first and second cameras, for processing the received first and second images for display, and for transmitting the processed first and second images to the first and the second displays, respectively, via the display optics. The displays can then be viewed by a surgeon through the microscope at least during the surgery. | 06-24-2010 |
20100157245 | FUNDUS CAMERA - A fundus camera includes an illumination optical system including an illumination unit configured to illuminate a fundus of a subject's eye, a fundus observation photographing optical system including an image sensor and is configured to observe a fundus image, a focus index projection unit configured to project a focus index on a center region of a photographing portion of the fundus of the subject's eye, a display unit configured to display the fundus image captured by the image sensor, an enlargement unit configured to electrically enlarge the center region of the image captured by the image sensor on which the focus index is projected, an image synthesis unit configured to synthesize an output of the enlargement unit and an image output of a peripheral portion of the image captured by the image sensor, and an output unit configured to output an output of the image synthesis unit to the display unit. | 06-24-2010 |
20100157246 | OPHTHALMIC SURGICAL SYSTEM - A system includes an optical system having two beam splitters (a dichroic beam splitter and a polarizing beam splitter), which are designed to provide three separate beam paths for observing an object. The dichroic beam splitter is designed to separate two beam paths depending on the wavelength of the light of the respective beam path. The polarizing beam splitter is designed such that two beam paths are separated depending on a direction of polarization of the light of the respective beam path. The measuring light is linearly polarized after having passed the polarizing beam splitter and may be influenced with respect to the state of polarization by a retarding plate. The returning measuring light incident on the polarizing beam splitter is linearly polarized and also polarized in such a direction that the returning measuring light is transported through the polarizing beam splitter towards the analyzing detector with a high efficiency. | 06-24-2010 |
20100165291 | IMAGE ACQUISITION APPARATUS AND IMAGE ACQUISITION METHOD USING OPTICAL COHERENCE TOMOGRAPHY - An image acquisition apparatus that uses optical coherence tomography includes a scanning unit provided within a light path that guides signal light to be incident on an examination object towards the examination object and configured to scan the signal light in a main scanning direction; and a control unit configured to control the scanning unit such that an integration time of an optical interference signal per pixel in at least one predetermined area other than opposite ends, in the main scanning direction, of an image acquisition region scanned by a plurality of main scan lines is increased relative to that of an area other than the predetermined area. | 07-01-2010 |
20100165292 | Ophthalmic photographic apparatus - A timer function hold mode in which the timer continues the timing function is set in a mydriatic fluorescence mode by operating a timer switch for at least a fixed time, or by simultaneously operating a fluorescence filter switch and the timer switch. If the timer function hold mode is set in the mydriatic fluorescence mode, then the timing of the timer is continued even after the photography mode switches to another photography mode e.g. non-mydriatic or mydriatic color mode. When, on the other hand, the timer function hold mode is not set in the mydriatic fluorescence mode, the timer is caused to be stopped or reset when the mode is switched to the non-mydriatic or mydriatic color mode. | 07-01-2010 |
20100171925 | METHOD OF EYE ALIVENESS TESTING AND DEVICE FOR EYE ALIVENESS TESTING - In compliance with the method, the measurement of the characteristic dimensions of the hypothetical pupil are taken on the basis of a sequence of images. The eye is stimulated with the light featuring a pre-defined intensity profile. For each image in this sequence, the characteristic dimensions of the hypothetical pupil are calculated by means of image processing methods. For a sequence of images, the system determines the function ƒ which defines the changes in the characteristic dimensions of the hypothetical pupil within the measurement period, and on the basis of the said changes as well as on the selected mathematical model, the aliveness parameters O of the eye are determined by means of estimation methods. The calculated aliveness parameters are compared with the statistical template by way of classification process. | 07-08-2010 |
20100177279 | Vision modification with reflected image - Various embodiments of methods and systems for improving and enhancing vision are disclosed. Adjustable lenses or optical systems may be used to provide adaptive vision modification. In some embodiments, vision modification may be responsive to the current state of the user's visual system. Certain embodiments provide correction of the subject's near and far vision. Other embodiments provide enhancement of vision beyond the physiological ranges of focal length or magnification. | 07-15-2010 |
20100195048 | Adaptive Optics Line Scanning Ophthalmoscope - A first optical module scans a portion of an eye with a line of light, descans reflected light from the scanned portion of the eye and confocally provides output light in a line focus configuration. A detection device detects the output light and images the portion of the eye. A second optical module detects an optical distortion and corrects the optical distortion in the line of light scanned on the portion of the eye. | 08-05-2010 |
20100195049 | PUPILOMETER WITH PUPIL IRREGULARITY DETECTION, PUPIL TRACKING, AND PUPIL RESPONSE DETECTION CAPABILITY, GLAUCOMA SCREENING CAPABILITY, INTRACRANIAL PRESSURE DETECTION CAPABILITY, AND OCULAR ABERRATION MEASUREMENT CAPABILITY - A pupilometer that has image capturing means, a light source that emits light; and imaging software that processes image data obtained by the image capturing means and produces an output is described. The output comprises a single scalar value indicative of a neurological condition of a patient, wherein the scalar value can be applied to a scale indicative of a neurological condition. The image data comprises one or more components of the pupil's dynamic response to light emitted by the light source. | 08-05-2010 |
20100201943 | ILLUMINATING AN ORGAN - An examination device comprises at least one optical component, each being connectable to a camera unit. The optical component comprises at least one optical radiation source and at least one optical radiation control structure. The optical radiation source is configured to direct optical radiation to the at least one optical radiation control structure, which is located non-axially to the optical axis of the optical component. The optical radiation control structure is configured to direct optical radiation of the optical radiation source towards an organ in a direction diverging from the optical axis of the optical component. | 08-12-2010 |
20100201944 | ADAPTIVE INFRARED RETINOSCOPIC DEVICE FOR DETECTING OCULAR ABERRATIONS - An ocular system for detecting ocular abnormalities and conditions creates photorefractive digital images of a patient's retinal reflex. The system includes a computer control system, a two-dimensional array of infrared irradiation sources and a digital infrared image sensor. The amount of light provided by the array of irradiation sources is adjusted by the computer so that ocular signals from the image sensor are within a targeted range. Enhanced, adaptive, photorefraction is used to observe and measure the optical effects of Keratoconus. Multiple near-infrared (NIR) sources are preferably used with the photorefractive configuration to quantitatively characterize the aberrations of the eye. The infrared light is invisible to a patient and makes the procedure more comfortable than current ocular examinations. | 08-12-2010 |
20100208201 | ENHANCED OPTICAL COHERENCE TOMOGRAPHY FOR ANATOMICAL MAPPING - A system, method and apparatus for anatomical mapping utilizing optical coherence tomography. In the present invention, 3-dimensional fundus intensity imagery can be acquired from a scanning of light back-reflected from an eye. The scanning can include spectral domain scanning, as an example. A fundus intensity image can be acquired in real-time. The 3-dimensional data set can be reduced to generate an anatomical mapping, such as an edema mapping and a thickness mapping. Optionally, a partial fundus intensity image can be produced from the scanning of the eye to generate an en face view of the retinal structure of the eye without first requiring a full segmentation of the 3-D data set. Advantageously, the system, method and apparatus of the present invention can provide quantitative three-dimensional information about the spatial location and extent of macular edema and other pathologies. This three-dimensional information can be used to determine the need for treatment, monitor the effectiveness of treatment and identify the return of fluid that may signal the need for re-treatment. | 08-19-2010 |
20100208202 | FUNDUS CAMERA - A fundus camera includes an illumination unit configured to illuminate a fundus of a subject's eye with a visible light from a visible light source, an imaging unit which has sensitivity in a visible wavelength range and is configured to receive a reflected light from the fundus to capture a fundus image, and a light amount balance changing unit configured to independently change at least a part of a light amount emitted from LED elements wherein the visible light source includes a plurality of the LED elements discretely arranged into a ring shape. | 08-19-2010 |
20100208203 | Compact ocular wavefront system with long working distance - A compact ocular wavefront system with a long working distance is disclosed for use in reducing the overall optical path length for an ocular wavefront system while providing performance similar to that of a traditional system. The system incorporates a compact three-lens subsystem to relay the wavefront from the eye's pupil to a wavefront sensor. The wavefront sensor is placed in close proximity to a digital camera's sensor array. The combination of the compact relay system and the location of the wavefront sensor allows the total track of a traditional ocular wavefront system to be reduced significantly. | 08-19-2010 |
20100208204 | EYE PORTION DIAGNOSIS SUPPORT APPARATUS, METHOD THEREFOR, PROGRAM, AND RECORDING MEDIUM - There is provided a technique for efficiently acquiring a tomogram of an eye portion. A diagnosis support apparatus includes a wide-area image acquisition means for acquiring a wide-area image of an eye portion, a detection means for detecting a lesion candidate on the eye portion by analyzing the wide-area image acquired by the wide-area image acquisition means, a determination means for determining a parameter associated with acquisition of a tomogram of the eye portion, based on a lesion candidate detection result obtained by the detection means, and a tomogram acquisition means for acquiring a tomogram of the eye portion based on the parameter determined by the determination means. | 08-19-2010 |
20100214532 | METHODS, SYSTEMS, AND DEVICES FOR MONITORING ANISOCORIA AND ASYMMETRY OF PUPILLARY REACTION TO STIMULUS - A Pupillometer is disclosed. The Pupillometer has a display, an imaging apparatus that has a pupil finder and a microprocessor, and a memory in communication with the microprocessor. The display is sized to simultaneously display a video of y or more seconds in length of a left pupil and a video of y or more seconds in length of a right pupil. The pupil finder identifies the perimeter of a pupil. The imaging apparatus is capable of recording images of an individual's pupils at a rate of x image frames per second for a period of y or more seconds and playing back said image frames as a video at x image frames per second or at another rate that is faster or slower than x image frames per second. The memory has stored therein a program for enabling said microprocessor to do the following: (i) identify a center of the left pupil and a center of the right pupil for each image frame; (ii) synchronize each image frame of the two videos starting from the first frame; (iii) cause the display to display the two videos simultaneously such that each of the image frames of the video of the left eye is synchronized to a corresponding image frame of the video of the right eye when played back on the display; and (iv) cause the two videos to be displayed so that the center of the left pupil in each image frame is aligned on the display with the center of the right pupil for the corresponding image frame. | 08-26-2010 |
20100214533 | Spectrometer - A spectrometer is described, especially for an optical coherence tomograph ( | 08-26-2010 |
20100214534 | OPHTHALMIC SURGERY SYSTEM - An ophthalmic surgery system ( | 08-26-2010 |
20100214535 | FUNDUS CAMERA - A fundus camera includes an irradiation unit including a plurality of LED elements and a fluorescent material that emits light by being excited by light emitted from the LED elements and configured to emit light that is generated by combining light emitted from the LED elements and excitation light from the fluorescent material, an illumination optical system configured to irradiate an eye fundus of a subject's eye with the light emitted by the illumination unit, an observation unit configured to form an eye fundus image by receiving light, which is emitted from the illumination unit and reflected from the eye fundus, and an imaging unit configured to pick up the eye fundus image formed by the observation unit. | 08-26-2010 |
20100214536 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS - An ophthalmologic photographing apparatus includes a photographing mode selection unit configured to select one of a plurality of photographing modes respectively corresponding to different photographing conditions, an imaging unit configured to capture an image of a subject's eye, an original image data generation unit configured to process electronic data of the image captured by the imaging unit according to the selected photographing mode and to generate a plurality of original image data differing from one another in spatial resolution and gradation resolution, and an image processing unit configured to generate a electronic image for diagnosis, which has similar gradation resolution to that of each of the plurality of original image data generated by the original image data generation unit. | 08-26-2010 |
20100220287 | OPHTHALMIC IMAGING APPARATUS - An ophthalmic imaging apparatus comprises: a laser emitter that includes an ultrashort pulse light source and emits a laser beam with a tunable wavelength in a predetermined visible wavelength range; an irradiation optical system that includes a scanner for scanning the laser beam two-dimensionally and irradiates the laser beam emitted from the laser emitter to a predetermined portion of an examinee's eye; a light receiving optical system including an apertured plate placed in a substantially conjugate position of a focal point of the laser beam on the predetermined portion and a light receiving element for receiving the laser beam reflected by the predetermined portion and passed through the apertured plate; a controller that controls the laser emitter to continuously change a central wavelength of the laser beam in a predetermined visible wavelength range and controls the scanner in association with the wavelength change of the laser beam to two-dimensionally change an irradiation position of the laser beam; a memory that stores a light reception signal of the light receiving element associated with the wavelength change of the laser beam and the irradiation position change of the laser beam; and a display, the controller being adapted to display an image of the predetermined portion on the display based on the light reception signal stored in the memory. | 09-02-2010 |
20100220288 | EXPLICT RAYTRACING FOR GIMBAL-BASED GAZEPOINT TRACKERS - A system for determining a three-dimensional location and orientation of an eye within a camera frame of reference includes a camera, an illuminator, and a processor. The camera captures an image of the eye. The illuminator generates a reflection off of a corneal surface of the eye. The processor computes a first two-dimensional location of a pupil reflection image and a corneal reflection image from the image of the eye. The processor predicts a second two-dimensional location of a pupil reflection image and the corneal reflection image as a function of a set of three-dimensional position and orientation parameters of the eye within the camera frame of reference. The processor iteratively adjusts the set until the first two-dimensional location is substantially the same as the second two-dimensional location. The set is the three-dimensional location and orientation of an eye. | 09-02-2010 |
20100231856 | EYE VIEWING DEVICE COMPRISING VIDEO CAPTURE OPTICS - There is described in one embodiment an eye viewing device for viewing a structure of an eye such as a retina. The eye viewing device can include an image sensor. In one embodiment an eye viewing device can be adapted to facilitate both visual viewing of an eye structure and electronic image capture. | 09-16-2010 |
20100231857 | Pupilometer For Pupil Center Drift and Pupil Size Measurements at Differing Viewing Distances - The present invention generally provides improved devices, systems, and methods for measuring characteristics of at least one eye, and particularly for measuring the physiological changes in eyes under different viewing conditions. An exemplary embodiment provides a pupilometer which measures any changes in location of a pupil center with changes in viewing distances. As the eye often moves significantly during viewing, the pupil center location will often be measured relative to a convenient reference of the eye such as an outer iris boundary. Pupil size may also be recorded, and the measurements from both eyes of a patient may be taken simultaneously. Exemplary embodiments may be configured so as to allow the vergence angle between the eyes to vary with differing viewing distances, regardless of whether one or both eyes are being measured. | 09-16-2010 |
20100238401 | DEVICE AND METHOD FOR EXAMINING THE EYE FUNDUS, ESPECIALLY THE PHOTORECEPTORS - A device for examining the eye fundus and photoreceptors includes an illumination beam path having optical beam forming and/or guiding components, at least one illumination unit for providing a continuous illumination and a flash illumination, and an observation and imaging beam path having optical beam forming and/or guiding components and a device for varying the magnification, including a beam splitter for splitting the observation and imaging beam path. A rotatable diffraction grating is disposed in a plane in the observation and imaging beam path that is conjugate to the object plane and the movement of the grating is synchronized with the illumination unit that serves as the flash illumination so that an image recording sensor records a rapid sequence of images of the eye fundus at different positions of the grating and said sequence is forwarded to an existing evaluation unit. | 09-23-2010 |
20100238402 | FUNDUS CAMERA - In a photographing optical system, an autofluorescence barrier filter having a characteristic of transmitting a light having an autofluorescence wavelength and a near-infrared wavelength, and a near-infrared light cut-off filter having a characteristic of transmitting the visible light and blocking the near-infrared light are disposed to be replaceable. In the case of observing a fundus, the fluorescence barrier filter is inserted into an optical path in an observation photographing optical system, so that observation can be performed by using a near-infrared illuminating light. In the case of autofluorescence photographing, the photographing can be performed without filter switching. In the case of color photographing, at the time of observation, the observation is performed using the fluorescence barrier filter, and at the time of photographing, the photographing can be performed using the replaced infrared light cut-off filter. | 09-23-2010 |
20100238403 | OPHTHALMIC OBSERVATION APPARATUS AND OPHTHALMIC OBSERVATION PROGRAM - An ophthalmic observation apparatus that is capable of performing follow-up of an examinee's eye efficiently and suitably. The ophthalmic observation apparatus for observing an image of an examinee's eye that is obtained by an ophthalmic photographing apparatus includes an input device arranged to output an operation signal given by an examiner, a monitor, and a display control unit arranged to display a first image and a second image of a same portion of the examinee's eye that are obtained at different dates and times of examination on the monitor in a comparable manner, and when changing a display region of the image of the examinee's eye based on the operation signal outputted from the input device, synchronize the change of the display region between the first image and the second image. | 09-23-2010 |
20100245764 | APPARATUS AND METHOD FOR OPTICAL MEASUREMENTS - Disclosed are an apparatus and method for separately detecting and measuring specularly reflected light and diffusely reflected light following illumination of an eye by light. The apparatus and method of the present invention facilitates substantial separation of the diffusely reflected light from light specularly reflected from the eye after passing through one or more elements of the eye, for example, the cornea, lens, retinal vasculature, the nerve fibre layer and/or the photoreceptors. The collection of these separate streams of independent optical signals to appropriate detection systems provides specificity and accuracy in determination of optical properties of one or more elements of the eye. | 09-30-2010 |
20100245765 | VIDEO INFRARED OPHTHALMOSCOPE - An opthalmoscope includes a wearable headset. The wearable headset has a light source, a beam splitter reflecting infrared radiation from the light source to an eye, a camera collecting radiation reflected by the eye through the beam splitter, an analog to digital convertor receiving a raw signal from the camera based on the collected radiation, the analog to digital convertor converting the raw signal to a digital signal; a black and white to color converter converting the digital signal into a color signal, a streaming video converter processing the color signal into a video signal, and a pair of video monitors displaying an image of the eye based on the video signal. The wearable headset also has a video transmitter, the video transmitter transmitting the video signal to a computer over a network, the computer extracting a plurality of images from the video signal. | 09-30-2010 |
20100245766 | SYSTEMS AND METHODS FOR PHOTOACOUSTIC OPTHALMOSCOPY - Various embodiments of the present invention include systems and methods for multimodal functional imaging based upon photoacoustic and laser optical scanning microscopy. In particular, at least one embodiment of the present invention utilizes a contact lens in combination with an ultrasound transducer for purposes of acquiring photoacoustic microscopy data. Traditionally divergent imaging modalities such as confocal scanning laser ophthalmoscopy and photoacoustic microscopy are combined within a single laser system. Functional imaging of biological samples can be utilized for various medical and biological purposes. | 09-30-2010 |
20100253907 | Ocular surface interferometery (OSI) devices and systems for imaging, processing, and/or displaying an ocular tear film - Ocular surface interferometry (OSI) devices, systems, and methods are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). The measured TFLT can be used to diagnosis dry eye syndrome (DES). In certain disclosed embodiments, a multi-wavelength light source can be controlled to illuminate the ocular tear film. Light emitted from the multi-wavelength light source undergoes optical wave interference interactions in the tear film. An imaging device can be focused on the lipid layer of the tear film to capture optical wave interference interactions of specularly reflected light from the tear film combined with a background signal(s) in a first image. The imaging device can also be focused on the lipid layer of the tear film to capture a second image containing the background signal(s) present in the first image. The second image can be subtracted from the first image to reduce and/or eliminate the background signal(s) in the first image to produce a resulting image. The resulting image can be processed and analyzed to measure a tear film layer thickness (TFLT), including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). | 10-07-2010 |
20100253908 | Stabilized Retinal Imaging With Adaptive Optics - A system provides an optical image of an object. A first module tracks a reference feature of the object. A second module includes a source for an imaging beam, a scanning device to move the imaging beam along a portion of the object and a detection device receives a signal associated with an image of the portion of the object. The first module controls the position of the imaging beam relative to the reference feature to correct for the motion of the object. A third module detects a distortion of the object and compensates for the distortion. | 10-07-2010 |
20100259721 | Ocular surface interferometry (OSI) devices and systems for imaging and measuring ocular tear film layer thickness (ES) - Ocular surface interferometry (OSI) devices, systems, and methods are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). The measured TFLT can be used to diagnosis dry eye syndrome (DES). In certain disclosed embodiments, a multi-wavelength light source can be controlled to illuminate the ocular tear film. Light emitted from the multi-wavelength light source undergoes optical wave interference interactions in the tear film. An imaging device can be focused on the lipid layer of the tear film to capture optical wave interference interactions of specularly reflected light from the tear film combined with a background signal(s) in a first image. The imaging device can also be focused on the lipid layer of the tear film to capture a second image containing the background signal(s) present in the first image. The second image can be subtracted from the first image to reduce and/or eliminate the background signal(s) in the first image to produce a resulting image. The resulting image can be processed and analyzed to measure a tear film layer thickness (TFLT), including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). | 10-14-2010 |
20100259722 | Ocular surface interferometry (OSI) methods for imaging, processing, and/or displaying an ocular tear film - Ocular surface interferometry (OSI) devices, systems, and methods are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). The measured TFLT can be used to diagnosis dry eye syndrome (DES). In certain disclosed embodiments, a multi-wavelength light source can be controlled to illuminate the ocular tear film. Light emitted from the multi-wavelength light source undergoes optical wave interference interactions in the tear film. An imaging device can be focused on the lipid layer of the tear film to capture optical wave interference interactions of specularly reflected light from the tear film combined with a background signal(s) in a first image. The imaging device can also be focused on the lipid layer of the tear film to capture a second image containing the background signal(s) present in the first image. The second image can be subtracted from the first image to reduce and/or eliminate the background signal(s) in the first image to produce a resulting image. The resulting image can be processed and analyzed to measure a tear film layer thickness (TFLT), including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). | 10-14-2010 |
20100259723 | Ocular surface interferometry (OSI) methods for imaging and measuring ocular tear film layer thickness(es) - Ocular surface interferometry (OSI) devices, systems, and methods are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). The measured TFLT can be used to diagnosis dry eye syndrome (DES). In certain disclosed embodiments, a multi-wavelength light source can be controlled to illuminate the ocular tear film. Light emitted from the multi-wavelength light source undergoes optical wave interference interactions in the tear film. An imaging device can be focused on the lipid layer of the tear film to capture optical wave interference interactions of specularly reflected light from the tear film combined with a background signal(s) in a first image. The imaging device can also be focused on the lipid layer of the tear film to capture a second image containing the background signal(s) present in the first image. The second image can be subtracted from the first image to reduce and/or eliminate the background signal(s) in the first image to produce a resulting image. The resulting image can be processed and analyzed to measure a tear film layer thickness (TFLT), including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). | 10-14-2010 |
20100271593 | Apparatus for photographing the anterior segment and retina of the eye through the use of a camera attachment designed to fit onto a Welch Allyn PanOptic Ophthalmoscope - Apparatus for photographing the anterior segment and retina of the eye through the use of a camera attachment designed to snap-fit onto a Welch Allyn PanOptic Ophthalmoscope without permanently altering the ophthalmoscope itself. The plastic attachment houses a digital camera with video and still photo capabilities. A button on the camera allows for snapshots to be taken. The camera is connected to a laptop or stationary computer via a USB cable. The camera, which utilizes software for photo and video management, relays views to a computer and monitor, projecting the same view on the screen as a practitioner would see when using the Welch Allyn PanOptic traditionally. | 10-28-2010 |
20100271594 | Device and Method for Axial Length Measurement Having Expanded Measuring Function in the Anterior Eye Segment - The present invention is directed to a solution for measuring geometric parameters in the eye which are required for calculating the refractive power of intraocular lenses. The device according to the invention for axial length measurement which acquires axial length, anterior corneal radii, anterior chamber depth, and other parameters in the anterior eye segment includes a control unit, a first measuring device for determining axial length, and an additional measuring device which acquires a plurality of structures in the anterior segment (such as the cornea, anterior chamber, and lens) and which has at least one illumination unit and at least one image recording unit. By determining additional partial-distance parameters of the anterior eye segments, the IOL can be calculated with high precision even after refractive surgery in which the natural relationship between the radii of the anterior and posterior corneal surfaces is extensively altered by corneal surgery. | 10-28-2010 |
20100277690 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS - An ophthalmologic photographing apparatus includes an imaging unit configured to capture a fundus image of a subject's eye to output an image signal, a projection unit configured to intermittently project an index light flux onto the subject's eye in synchronization with the image signal from the imaging unit, and an image recording unit configured to record the image signal from the imaging unit as a moving image. | 11-04-2010 |
20100277691 | Methods for Diagnosing Glaucoma Utilizing Combinations of FD-OCT Measurements from Three Anatomical Regions of the Eye - This invention discloses methods and systems for diagnosing glaucoma by combining diagnostic parameters derived from optical coherence tomography images of three different anatomic regions of the eye, including the macular ganglion cell complex (mGCC), the peripapillary nerve fiber layer (ppNFL), and the optic nerve head (ONH). The combined diagnostic parameters form a reduced set of global parameters, which are then fed to pre-trained machine classifiers as input to arrive at a single diagnostic indicator for glaucoma. Also disclosed are methods for training a machine classifier to be used in methods and systems of this invention. | 11-04-2010 |
20100283970 | FUNDUS CAMERA - A fundus camera includes an observation photographing unit having a focusing lens to perform focusing of an imaging unit on a fundus of a subject's eye, a lens driving unit configured to drive the focusing lens in an optical axis direction, and a focusing control unit configured to calculate a focusing evaluation value based on image information of a predetermined area of a fundus image captured by the observation photographing unit, and drive the focusing lens based on the focusing evaluation value, thereby performing focusing, wherein the focusing control unit moves the focusing lens from a previous photographing position of the focusing lens by a predetermined moving amount, and then performs the focusing. | 11-11-2010 |
20100290005 | Circular Profile Mapping and Display of Retinal Parameters - Certain diseases of the retina are diagnosed by circular profile analysis of retinal parameters, such as thickness. Retinal thickness around a user-defined circle on the retina is measured by various ophthalmological techniques and ±mapped to a circular profile map. The circular profile map does not use segmentation of measurement data into arbitrary arcs, and thickness is mapped to a quasi-continuous range of display bands. The circular profile map is superimposed on a fundus image, or other two-dimensional image of the retina, allowing association of the circular profile map with the presence of blood vessels and other anatomical features. The simultaneous display of a series of circular profile maps generated from sets of measurement data taken at different times permits the ready visualization of the progression of retinal abnormalities. | 11-18-2010 |
20100296056 | FUNDUS PHOTOGRAPHING APPARATUS - A fundus photographing apparatus includes an imaging unit configured to capture a fundus image of an subject's eye via a photographing optical system, an imaging magnification output unit configured to output imaging magnification of the photographing optical system, a fixation target presenting unit configured to make the subject's eye to look firmly at a fixation target, a fixation target presenting position detection unit configured to detect a presenting position of the fixation target presenting unit, a matching area determination unit configured to determine an area for matching a fundus image based on the imaging magnification and the presenting position of the fixation target, and a correlation value calculation unit configured to calculate a correlation value between a plurality of fundus images captured by the imaging unit based on the matching area determined by the matching area determination unit. | 11-25-2010 |
20100302506 | OPTHALMOLOGY PHOTOGRAPHING APPARATUS - A fundus camera includes an illumination unit to illuminate an ocular fundus of a subject's eye, an autofluorescent exciter filter insertable into and retractable from an illumination optical path of the illumination unit, an observation and photographing unit to receive reflection light from the ocular fundus illuminated by the illumination unit and form an ocular fundus image, an autofluorescent barrier filter insertable into and retractable from an observation and photographing optical path, an image capturing unit to capture an ocular fundus image, and a calculation unit to calculate image data, wherein the calculation unit converts the ocular fundus image which is illuminated using the autofluorescent exciter filter and captured by a color image capturing unit as a color image, in a state that no autofluorescent barrier filter is inserted into the observation and photographing unit, into a monochromatic image from specific color data of each of the pixels. | 12-02-2010 |
20100302507 | METHOD AND SYSTEM FOR RETINAL HEALTH MANAGEMENT - A method for quantifying disease progression through retinal health assessment and management. The method comprises obtaining a first image of a retina or iris at a point in time; generating a first vascular map of the first image of the retina or the iris; obtaining a second image of the retina or the iris at a later point in time; generating a second vascular map of the second image of the retina or the iris; registering the first image and the second image on the basis of the first vascular map and the second vascular map; and displaying at least one difference between the registered first image and the second image to quantify a disease progression. | 12-02-2010 |
20100302508 | Ophthalmic photographing apparatus - An ophthalmic photographing apparatus including an interference optical system for dividing light from a first light source into measurement light and reference light, directing measurement light to a fundus and reference light to a reference optical system, and photo-receiving by a first photodetector interference light, a first optical scanner disposed in a measurement light optical path and scanning measurement light in two dimensional directions, a driving unit moving an optical member in an optical path of measurement light or reference light to change an optical path length, a control unit controlling the driving unit to adjust an optical path length difference, controlling the optical scanner to scan measurement light at a given photographing view angle, and obtaining a tomographic image based on a photodetector signal, and a calculation unit converting a photographing range into an actual distance based on optical member positional information and view angle information. | 12-02-2010 |
20100309431 | FUNDUS CAMERA - A fundus camera includes an optical path splitting unit arranged between a focusing unit and an imaging unit. The splitting unit has characteristics adapted to reflect light of a visible light region and to transmit near-infrared light. The splitting unit retreats from an optical path when a still fundus image is photographed. A quick-return mirror having such characteristics is used as the splitting unit. When near-infrared illumination light having a wavelength of about 850 nm is used, such light can be incident upon the imaging unit without loss of the amount of light. Visible light output from an internal fixation target is projected onto a subject's eye. A cornea diaphragm and a crystalline lens diaphragm are used for observing a fundus with invisible light. Each of the cornea diaphragm and crystalline lens diaphragm can be changed to another one having a different diameter. | 12-09-2010 |
20100315590 | Ophthalmic photographing apparatus - To provide an ophthalmic photographing apparatus capable of checking a measurement (photographing) position of a tomographic (cross-sectional) image of a fundus on a front (surface) image of the fundus. | 12-16-2010 |
20100315591 | METHOD AND DEVICE FOR TEAR FILM ANALYSIS - Tear film stability has an important role in the quality of vision. A system and method for performing Fluctuation Analysis of Spatial Image Correlation (FASIC) provides for a non-invasive system and method for evaluating the dynamics of the tear film surface using spatial autocorrelation analysis. With FASIC, a series of images are obtained using illumination and a camera. The spatial autocorrelation is calculated for image frames produced by the camera. A sinusoidal background appears in this correlation together with other features. The changes in the sinusoidal background of the spatial autocorrelation is extracted and monitored over time. The spatial period of this sinusoidal background correlates with the thickness of the tear film. In this regard, one is able to derive the tear film thickness from the period of this sinusoidal background. | 12-16-2010 |
20100315592 | Optical Coherence Imaging Systems Having a Mechanism for Shifting Focus and Scanning Modality - Some embodiments of the present invention provide adapters for use in posterior imaging systems. The adapters include lens set configured to adapt the posterior imaging system to operate as an anterior imaging system. Related optical coherence tomography systems and anterior imaging systems are also provided herein. | 12-16-2010 |
20100321636 | Optical Coherence Imaging Systems Having a Mechanism for Shifting Focus and Scanning Modality and Related Adapters - Some embodiments of the present invention provide adapters for use in posterior imaging systems. The adapters include lens set configured to adapt the posterior imaging system to operate as an anterior imaging system. Related optical coherence tomography systems and anterior imaging systems are also provided herein. | 12-23-2010 |
20100328606 | NON-CONTACT OPTICAL COHERENCE TOMOGRAPHY IMAGING OF THE CENTRAL AND PERIPHERAL RETINA - A system for imaging of the central and peripheral retina, includes one of a concave mirror and an elliptical mirror having an axis and being configured to rotate around the axis and a scanner configured to using a spectral domain optical coherence tomography system to obtain a non-contact wide angle OCT-image of a large portion of the central and peripheral retina. | 12-30-2010 |
20100328607 | OPHTHALMOLOGICAL MEASURING SYSTEM AND METHOD FOR DETERMINING THE BIOMETRIC DATA OF AN EYE - An ophthalmological measuring system for obtaining biometric data of an eye with a view to the pre-operative determination of a replacement lens or supplementary lens or refractive operations. The invention includes a combination of a measuring instrument based on ultrasound, an optical measuring instrument, and an evaluation unit, measuring values of the optical measuring instrument and/or of the measuring instrument based on ultrasound being used by the evaluation unit for determining the biometric data of an eye. Furthermore, keratometric and/or pachymetric measurements can also be carried out. The combination of different measuring systems enables a complete examination or diagnosis of a patient on a measuring table, so that the patient does not need to be moved, or have to come back at a later date for more measurements. | 12-30-2010 |
20110001927 | FUNDUS SCANNING APPARATUS - A combined fundus scanning apparatus for optical coherence tomography (OCT) and fundus imaging has an OCT unit ( | 01-06-2011 |
20110007270 | OBJECTIVE QUALITY METRIC FOR OCULAR WAVEFRONT MEASUREMENTS - A system and method for determining an objective quality metric for image data collected by a wavefront aberrometer. The method may include quantifying a plurality of characteristics of the image data and calculating the objective quality metric based on the quantified characteristics of the image data. The objective quality metric can be a weighted sum of the quantified characteristics of the image data. The weightings for the weighted sum can be determined based on subjective quality metrics assigned to a set of training image data by a human expert. | 01-13-2011 |
20110007271 | OPHTHALMOLOGIC IMAGING APPARATUS AND OPHTHALMOLOGIC IMAGING METHOD - An opthalmologic imaging apparatus that captures a fundus image of a subject's eye includes a first extraction unit configured to extract, from a first fundus image photographed with a first light quantity, an image of a first area having intensity not less than predetermined intensity and an image of a second area other than the first area, a second extraction unit configured to extract an image of an area corresponding to the first area from a second fundus image photographed with a second light quantity based on the light quantity of the first area, a third extraction unit configured to extract an image of an area corresponding to the second area from a third fundus image photographed with a third light quantity based on the light quantity of the second area, and an image combining unit configured to combine the images extracted by the second and the third extraction units. | 01-13-2011 |
20110007272 | FUNDUS CAMERA - A fundus camera that obtains focus evaluation values by scanning, in which a focusing lens moves a predetermined distance according to a photographing mode before the focusing lens starts scanning for obtaining focus evaluation values. | 01-13-2011 |
20110007273 | FUNDUS CAMERA - A fundus camera includes an illumination optical system, an observation photographic optical system, a photographic diaphragm unit located in a position conjugate with the subject's eye in the observation photographic optical system, and an imaging unit disposed in the observation photographic optical system. The photographic diaphragm unit includes a first photographic diaphragm fixed during capturing of a still image and a second photographic diaphragm movable during capturing of a moving image. The fundus camera further includes a diaphragm driving unit configured to move the second photographic diaphragm on a plane orthogonal to an optical axis, an image recording unit configured to capture, with the first photographic diaphragm, a still image based on an output of the imaging unit and, with the second photographic diaphragm, a moving image based on an output of the imaging unit, and a display unit configured to display an image captured by the imaging unit. | 01-13-2011 |
20110013139 | FUNDUS CAMERA OBJECTIVE AND CAMERA HAVING SUCH FUNDUS CAMERA OBJECTIVE - The invention relates to a fundus camera objective for recording an eye fundus. The invention further relates to a camera ( | 01-20-2011 |
20110019150 | Ophthalmologic visualization system - A method determines the position and/or radius of the limbus and/or the position and/or radius of the pupil of a patient eye. In the method, an image of the patient eye is obtained and a plurality of different ring-shaped comparison objects having respective radii and respective centers are provided. The image is correlated with the plurality of comparison objects to yield a local best match between the image and the comparison objects when there is a coincidence of one of the ring-shaped comparison objects and a ring-shaped jump in brightness in the image having the same radius and the same center. The comparison objects having a local best match with the image are determined. Thereafter, the position of the center of the comparison object having a local best match with the image is selected as the position of the center of the limbus and/or the position of the center of the pupil. | 01-27-2011 |
20110019151 | Microscopy system for eye surgery - The invention relates to an eye surgery microscopy system ( | 01-27-2011 |
20110032478 | UNIT FOR OBTAINING AND DISPLAYING FUNDUS IMAGE - A unit for obtaining and displaying fundus image is comprised of a memory that stores a plurality of fundus images wherein a positional relation between an optical axis of an eye ball to be examined and an optical axis of an objective is different, an image playback portion for producing a three-dimensional pseudo image by repeatedly displaying a plurality of fundus images on a display in order for a display time set on each fundus image, a CUP contour position designating means for designating a CUP contour position on the three-dimensional pseudo image, means for specifying the CUP contour position designated on the three dimensional pseudo image based upon a specific fundus image, and means for computing CUP contour based upon the specified CUP contour CD position and means for displaying the computed CUP contour. | 02-10-2011 |
20110032479 | IMAGE SENSING APPARATUS USING OPTICAL COHERENCE TOMOGRAPHY AND CONTROL METHOD THEREFOR - Tomographic images of a plurality of planes at a disease site of a fundus are taken exactly within a short period of time, and the tomographic images are respectively displayed so that the positional relationship thereof becomes clear. A low coherent optical tomographic image sensing apparatus for imaging a fundus includes a sensing unit which takes tomographic images of a plurality of planes intersecting each other in time division, a display unit which displays the taken tomographic images at separate sites on the identical screen, and a position indication unit which displays, in each tomographic image, an intersection position of the each tomographic image and another tomographic image intersecting each other. | 02-10-2011 |
20110032480 | OPHTHALMOLOGICAL MEASURING DEVICE AND MEASUREMENT METHOD - An opthalmological measuring device for determining geometric structures in an eye includes an optical, triangulating measurement system for determining at least one geometric reference in the eye by triangulation, and an optical, interferometric measurement system for determining geometric detailed structures in the eye by optical interferometry. The measuring device is designed to position the geometric detailed structures determined by the interferometric measurement system on the basis of the at least one geometric reference in the eye determined by the triangulating measurement system. This firstly allows the interferometric measurement system to register geometric detailed structures in the eye with a high optical resolution and at places that are not visible to the triangulating measurement system, and secondly allows the positioning of said geometric detailed structures in the eye on the basis of geometric references that are determined by the triangulating measurement system without significant movement artifacts. | 02-10-2011 |
20110043756 | RETINAL FUNDUS SURVEILLANCE METHOD AND APPARATUS - A method and apparatus for quantitatively imaging the retinal fundus. The method for retinal health assessment comprises imaging the retinal fundus of a patient's eye at different wavelengths within a spectral range and determining spectral reflectivity of the retina for each pixel within a field of view (FOV). The retinal health is assessed based on the spectral reflectivity of the retina. The metabolic and anatomical activity of the eye is monitored to detect, at the earliest stage, activity that could lead to the onset of blinding eye diseases such as macular degeneration, diabetic retinopathy, glaucoma, cataracts, etc. | 02-24-2011 |
20110051084 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS AND PHOTOGRAPHING METHOD THEREFOR - An ophthalmologic photographing apparatus includes an illumination unit configured to illuminate a subject's eye with one of infrared light and visible light, an input unit configured to input a signal to the illumination unit, a measurement unit configured to measure an input time of the signal from the input unit, a detection unit configured to detect that the input time is a predetermined time or longer, and a control unit configured to control the illumination unit according to a detection result by the detection unit to switch from the infrared light to the visible light. | 03-03-2011 |
20110051085 | OPHTHALMOLOGIC IMAGING APPARATUS AND OPHTHALMOLOGIC IMAGING METHOD - An ophthalmologic imaging apparatus includes an observation light source configured to generate infrared light for illuminating a subject's eye via an illumination optical system, an imaging unit configured to receive light returned from the subject's eye via an imaging optical system, and an electronic shutter control unit configured to refresh charge generated caused by light received by the imaging unit in response to turning off of the observation light source. | 03-03-2011 |
20110051086 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS, AND ITS PHOTOGRAPHING METHOD - An ophthalmologic photographing apparatus includes a light source configured to emit photographing light for illuminating a subject's eye through an illumination optical system, a changing unit configured to change a light emission amount of the light source, a selecting unit configured to select at least one of a plurality of photographing modes for photographing the subject's eye, a storage unit configured to store the changed light emission amount by the changing unit as a changed value during the photography in the photographing mode selected by the selecting unit, and a setting unit configured to set a light emission amount at a start of the photography to a light emission amount which is set beforehand as an initial state of the light source or to the changed value according to the plurality of photographing modes. | 03-03-2011 |
20110051087 | FUNDUS CAMERA - When pattern recognition of a fundus image is started in step S | 03-03-2011 |
20110051088 | FUNDUS OCULI OBSERVING DEVICE - A fundus oculi observing device 1 specifies a characteristic site of a fundus oculi Ef depicted in tomographic images of the fundus oculi Ef and, based on the position of the characteristic site within frames FH and FV of the tomographic images, changes a target position of a signal light LS so that the characteristic site is depicted in the center positions within the frames FH and FV and executes a main measurement, thereby forming a tomographic image and/or a three-dimensional image of the fundus oculi Ef. | 03-03-2011 |
20110058144 | APPARATUS, METHODS AND SYSTEMS FOR NON-INVASIVE OCULAR ASSESSMENT OF NEUROLOGICAL FUNCTION - A portable, non-invasive binocular scanning apparatus for rapid assessment of neurological function in cases of potential trauma, disease, and/or exposure to chemical treat agents. The scanning apparatus may utilize a combination of light sources for the measurement and assessment of pupillary response, retinal imagery, and/or other ophthalmologic biomarkers. The scanning apparatus can detect and assess a wide range of neurological and physiological conditions by obtaining pertinent measurements from the retina and pupil in real time. | 03-10-2011 |
20110080558 | DIAGNOSTIC METHOD AND APPARATUS FOR PREDICTING POTENTIAL PRESERVED VISUAL ACUITY - A diagnostic method is disclosed wherein the potential preserved visual acuity in the retina of a patient is determined from the amount of tissue connecting the inner and outer plexiform layers remaining in the retina. | 04-07-2011 |
20110080559 | Ocular Imaging - A system for performing quasi-elastic light scattering and fluorescent ligand scanning on a subject's eye includes a light source configured to transmit light toward the subject's eye, a lens configured to focus light sent from the source and scattered by the subject's eye, a measurement reflector disposed to receive at least a portion of the focused light and configured to reflect a first portion of the received light, a camera configured and disposed to receive the first portion of the received light and configured to provide indicia of an image corresponding to the first portion of the received light, and a processor coupled to the camera and configured to analyze intensities of light in the image to determine a location of a reference point corresponding to an interface of a portion of the eye. | 04-07-2011 |
20110080560 | EYE PORTION DIAGNOSIS SUPPORT APPARATUS, METHOD THEREFOR, PROGRAM, AND RECORDING MEDIUM - There is provided a technique for efficiently acquiring a tomogram of an eye portion. A diagnosis support apparatus includes a wide-area image acquisition means for acquiring a wide-area image of an eye portion, a detection means for detecting a lesion candidate on the eye portion by analyzing the wide-area image acquired by the wide-area image acquisition means, a determination means for determining a parameter associated with acquisition of a tomogram of the eye portion, based on a lesion candidate detection result obtained by the detection means, and a tomogram acquisition means for acquiring a tomogram of the eye portion based on the parameter determined by the determination means. | 04-07-2011 |
20110080561 | OPTICAL IMAGE MEASURING DEVICE - An optical image measuring device | 04-07-2011 |
20110085135 | Free space hands free ocular observation camera mount - The present invention provides a stable mount for a small video camera to be donned by a (but not limited to) a human subject in order to view and record the subjects eyes and adnexa (the area around the eyes including the lids and surrounding tissues which the orbicularis muscles reside beneath), without disturbing the subject's side vision. The preferred embodiment uses a reduced spectacle like frame or may use a headset, which does not obscure the side vision of the subject, and contains a boom or arm which extends forward, and again without interfering with the subjects side vision. The invention additionally does not interfere with the examiner's view of the subject's eyes and adnexa. Additionally, the subject is free to move the body in space, and is free to move the head in various positions. | 04-14-2011 |
20110085136 | Hybrid Spectral Domain Optical Coherence Tomography Line Scanning Laser Ophthalmoscope - An apparatus for imaging an eye includes a housing and a system of optical components disposed in the housing. The apparatus is capable of operating in a line scanning laser ophthalmoscope (LSLO) mode and an optical coherence tomography (OCT) mode. The system of optical components can include a first source to provide a first beam of light for the OCT mode and a second source to provide a second beam of light for the LSLO mode. In the OCT mode, a first optic is used that (i) scans, using a first surface of the first optic, the first beam of light along a retina of an eye in a first dimension, and (ii) descans, using the first surface, a first light returning from the eye in the first dimension to a detection system in the OCT mode. In the LSLO mode, the first optic is used where the second beam of light passes through a second surface of the first optic. | 04-14-2011 |
20110085137 | RING LIGHT FUNDUS CAMERA - A fundus camera includes a viewing optical path, an imaging device, and an illuminating optical path including at least one LED and a pinhole mirror reflecting the at least one LED into the imaging device, wherein at least a portion of the illuminating optical path shares an optical axis with at least a portion of the viewing optical path, and wherein the at least one LED includes a plurality of LEDs disposed in a shape of a ring. | 04-14-2011 |
20110085138 | Ophthalmological Diagnostic System - The present invention is an ophthalmological diagnostic system adapted for use in urgent care facilities, physicians' offices, hospitals, mobile treatment facilities, and in remote areas. The ophthalmological diagnostic system includes a component for securely holding a digital camera in optical communication with an ophthalmoscope and in various embodiments may include hardware and software for analysis and storage of images or video captured using the ophthalmological diagnostic system. The ophthalmological diagnostic system facilitates viewing of images and video by a single diagnostician or multiple diagnosticians. | 04-14-2011 |
20110090457 | OPHTHALMIC IMAGING APPARATUS, IMAGING UNIT, INSPECTION APPARATUS, AND METHOD OF PRODUCING OPHTHALMIC IMAGING APPARATUS - A method of producing an ophthalmic imaging apparatus includes the steps of producing an imaging unit configured to capture an image of an image subject in visible light and infrared light; adjusting the color tone of the imaging unit using a color-tone adjustment unit having a first optical member configured to absorb infrared light; and connecting the adjusted imaging unit and an optical system having a second optical member whose characteristic is the same as a characteristic of the first optical member and configured to capture an optical image of an eye to be examined. | 04-21-2011 |
20110090458 | TOMOGRAPHIC IMAGE CAPTURING APPARATUS, METHOD FOR CAPTURING TOMOGRAPHIC IMAGE, PROGRAM, AND STORAGE MEDIUM - A tomographic image capturing apparatus includes a fixation lamp configured to guide a line of sight of a subject's eye, and a control unit configured to control a projection position of measuring light according to a predetermined position on a fundus of the subject's eye and a projection position of the fixation lamp. | 04-21-2011 |
20110096291 | Systems for Extended Depth Fourier Domain Optical Coherence Tomography (FDOCT) and Related Methods - Systems for extended depth frequency domain optical coherence tomography are provided including a detection system configured to sample spectral elements at substantially equal frequency intervals, wherein a spectral width associated with the sampled spectral elements is not greater than one-half of the frequency interval. Related methods are also provided herein. | 04-28-2011 |
20110096292 | ADAPTIVE OPTICS APPARATUS THAT CORRECTS ABERRATION OF EXAMINATION OBJECT AND IMAGE TAKING APPARATUS INCLUDING ADAPTIVE OPTICS APPARATUS - An adaptive optics apparatus includes a first light modulating unit configured to perform modulation in a polarization direction of one of two polarized light components in light emitted from a light source, a changing unit configured to rotate the light modulated by the first light modulating unit by 90 degrees, a second light modulating unit configured to modulate the light changed by the changing unit in the polarization direction, and an irradiating unit configured to irradiate a measurement object with the light modulated by the second light modulating unit. | 04-28-2011 |
20110096293 | ADAPTIVE OPTICS APPARATUS AND IMAGING APPARATUS INCLUDING THE SAME - An adaptive optics apparatus includes a first conversion unit configured to convert a polarization direction of one of two polarization components of light to a polarization direction of the other of the polarization components, the light being emitted by a light source; a light modulation unit configured to modulate the two polarization components of light converted by the first conversion unit in the polarization directions that have been converted; a second conversion unit configured to convert directions of polarization components of the light modulated by the light modulation unit to directions that intersect with each other; and an irradiation unit configured to irradiate the object with the light that is converted by the light modulation unit. | 04-28-2011 |
20110096294 | NON-CONTACT OPTICAL COHERENCE TOMOGRAPHY IMAGING OF THE CENTRAL AND PERIPHERAL RETINA - A system for imaging of the central and peripheral retina of an eye, including one of a concave mirror and an elliptical mirror configured to focus a beam of light toward a primary focal point located inside pupil of the eye, and a scanner configured to obtain a non-contact wide angle optical coherence tomography-image of a portion of the central and peripheral retina, the scanner having a probe beam configured to rotate about the primary focal point between a first position and a second position, thereby permitting scanning light inside the eye to cover a predetermined peripheral field, so as to record a field of up to 200 degrees of a portion of the central and peripheral retina, thus creating a two dimensional or three dimensional image of the field. | 04-28-2011 |
20110102740 | ADAPTIVE OPTICAL APPARATUS AND IMAGING APPARATUS HAVING THE SAME - An adaptive optical apparatus includes a wavelength separation unit configured to separate a beam emitted from a light source into a plurality of wavelength band beams, a plurality of light modulation units configured to modulate the respective plurality of wavelength band beams, a wavelength combining unit configured to combine the beams modulated by the plurality of light modulation units into a beam, and an illumination unit configured to illuminate a measured object with the beam output from the wavelength combining unit. | 05-05-2011 |
20110102741 | LIGHT IRRADIATION APPARATUS, ADAPTIVE OPTICS APPARATUS, AND IMAGING APPARATUS INCLUDING THE SAME - A light irradiation apparatus includes an optical power acquiring unit configured to acquire an optical power of light emitted by a light source and with which an object is irradiated; an optical power adjusting unit configured to adjust the optical power of light emitted by the light source to a predetermined optical power in accordance with an acquisition result obtained by the optical power acquiring unit; and an irradiation unit configured to irradiate the object with the light that is adjusted by the optical power adjusting unit. | 05-05-2011 |
20110102742 | APPARATUS, METHOD, AND PROGRAM FOR PROCESSING INFORMATION - An information processing apparatus includes a determination unit configured to determine an incident angle of a signal light beam made incident on an object to be imaged in accordance with a structure of the object to be imaged and an instruction unit configured to send an instruction to capture a tomographic image of the object to be imaged on the basis of the signal light beam made incident on the object to be imaged at the determined incident angle. | 05-05-2011 |
20110102743 | System for observing cornea for transplantation - The present invention is directed to a system for observing a cornea for transplantation which includes: an illumination means for illuminating the cornea for transplantation contained in a container; an entire-view imaging means for imaging the substantial entirety of the interior of the container; a position adjusting means for adjusting the position and angle of the cornea for transplantation; a magnified-view imaging means for imaging a magnified view of the cornea for transplantation illuminated by the illumination means; an image display means for displaying each image taken by the entire-view imaging means and the magnified-view imaging means; and an image control means for controlling each image. | 05-05-2011 |
20110109877 | METHOD AND SYSTEM FOR THE OBJECTIVE MEASUREMENT OF OCULAR ACCOMMODATION - The invention relates to a method and system for the objective measurement of ocular accommodation. A double-pass ophthalmoscopic system is used which incorporates a periscope allowing the patient to binocularly see real objects in an open field and images of the retinal plane to be recorded on a CCD camera. The method includes obtaining, for different values of accommodation stimulation, a set of retinal images corresponding to different focal values in the retina, obtaining the different focal positions in the retina by moving the two lenses incorporated in the ophthalmoscopic system. The image with the best optical quality is obtained for each set of images and by associating the selected image with the known value of the accommodation stimulation it is possible to objectively measure the accommodation. | 05-12-2011 |
20110116040 | OPHTHALMOLOGIC APPARATUS AND METHOD FOR THE OBSERVATION, EXAMINATION, DIAGNOSIS, AND/OR TREATMENT OF AN EYE - An ophthalmologic apparatus and a method for the contactless observation, examination, treatment, and/or diagnosis of an eye. The apparatus is structurally based on a fundus camera or an ophthalmoscope. An illumination beam path extends from a first illumination source to the eye and is fitted with a perforated mirror and imaging optics, and an observation beam path extends from the eye to a detector via the imaging optics and through the perforated mirror. The arrangement additionally comprises a beam path for scanning illumination which extends from a second illumination source to the eye and is fitted with a scanning unit, a lens, and a beam splitter in addition to the imaging optics. The scanning unit that is arranged in the beam path for scanning illumination is designed as (an) electrostatically or/and galvanometrically driven bidirectional or unidirectional tilting mirror(s). | 05-19-2011 |
20110116041 | Ocular Imaging - A system for performing at least one of quasi-elastic light scattering and fluorescent ligand scanning on a subject's eye includes a light source configured to transmit light toward the subject's eye, a lens configured to focus light sent from the source and received from the subject's eye, a measurement reflector disposed to receive at least a portion of the focused light and configured to reflect a first portion of the received light, a camera configured and disposed to receive the first portion of the received light and configured to provide indicia of an image corresponding to the first portion of the received light, and a processor coupled to the camera and configured to analyze intensities of light in the image to determine a location of a reference point corresponding to an interface of a portion of the eye. | 05-19-2011 |
20110116042 | ADAPTIVE OPTICS APPARATUS, ADAPTIVE OPTICS METHOD, AND IMAGING APPARATUS - An adaptive optics apparatus includes an aberration measuring unit that measures an aberration caused by a subject's eye, the aberration being measured on the basis of returning light that returns from the subject's eye; an aberration correcting unit that performs aberration correction in accordance with the aberration measured by the aberration measuring unit; an irradiation unit that irradiates the subject's eye with light corrected by the aberration correcting unit; and an adjusting unit that maintains a correction characteristic of the aberration correcting unit when the subject's eye moves out of a predetermined area. | 05-19-2011 |
20110116043 | IMAGING DEVICE AND IMAGING METHOD - An imaging device includes an illuminating unit configured to illuminate a measurement object with light from a light source; an aberration correcting unit configured to correct aberration of the measurement object occurring in light returning from the measurement object, the returning light being provided by light illuminating the measurement object through an area differing from a center axis of the illuminating unit; and an image obtaining unit configured to obtain an image of the measurement object on the basis of light returning from the measurement object, the returning light being provided by light that is provided after the aberration is corrected by the aberration correcting unit and that illuminates the measurement object through the center axis of the illuminating unit. | 05-19-2011 |
20110116044 | ADAPTIVE OPTICS APPARATUS, ADAPTIVE OPTICS METHOD, AND IMAGING APPARATUS - An adaptive optics apparatus includes an aberration measuring unit that measures an aberration caused by a test object, the aberration being measured on the basis of returning light that returns from the test object; an aberration correcting unit that performs aberration correction in accordance with the aberration measured by the aberration measuring unit; an irradiation unit that irradiates the test object with light corrected by the aberration correcting unit; and an acquiring unit that acquires information based on a transmittance of the test object on the basis of the aberration measured by the aberration measuring unit. | 05-19-2011 |
20110122365 | Eye Surgery System and Methods of Preparing and Performing an Eye Surgery - A method for carrying out eye surgery comprises a comparison of images recorded before surgery with images recorded during surgery in order to generate a marker which represents a target orientation of an intraocular lens or a difference between a current orientation and the target orientation of the intraocular lens. An eye surgery system respectively comprises an imaging system which is used during a surgery and has a camera, and a diagnostic system which is used before surgery and which also has a camera. The imaging system used during surgery comprises an image processing device in order to perform a computation based on the recorded images, and in order to determine a respective orientation value, from which a representation of a marker representing the target orientation of the intraocular lens is obtained. | 05-26-2011 |
20110134392 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - This invention can generate a high-resolution, low-noise tomogram while minimizing the influences of the flicks of the eyeballs, the movement of the head, and the like. The invention is an image processing apparatus which processes a tomogram of an eye to be examined and includes detection units to detect the motion amount of the eye by using a signal obtained by capturing the tomogram, and a decision unit to decide the number of scanning lines for capturing of the tomogram based on the motion amount detected by the detection units. | 06-09-2011 |
20110134393 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM STORAGE MEDIUM - An image generation unit generates a composite image based on a plurality of two-dimensional tomographic images captured while setting an imaging position in a target eye. A tomographic imaging apparatus captures a volume image based on the set imaging position. | 06-09-2011 |
20110141436 | FUNDUS CAMERA AND OPHTHALMOLOGIC IMAGE PROCESSING APPARATUS - A fundus camera includes an imaging unit configured to capture a fundus image formed via a photographic optical system, a portion information detection unit configured to detect information about a predetermined portion of a fundus from image data acquired from the imaging unit, and an image generation unit configured to generate an image according to a tone curve which is changed according to a result of a detection performed by the portion information detection unit of the fundus image. | 06-16-2011 |
20110149242 | Artificial Eye and Measuring Instrument for Measuring the Accommodation of an Eye - A liquid lens system comprises a liquid drop | 06-23-2011 |
20110149243 | FUNDUS CAMERA - A fundus camera includes an illumination unit which includes an optical element configured to irradiate an eye fundus with visible light from a position conjugate with an anterior eye portion of an eye to be examined, and an imaging unit configured to take an image of the eye fundus with light which is emitted from the illumination unit and reflected from the eye fundus, wherein the illumination unit includes a blue LED chip and a fluorescent member that is excited by light emitted from the blue LED chip and emits fluorescence, and the fluorescent member is irradiated again with apart of the light reflected by the optical element. | 06-23-2011 |
20110149244 | OPHTHALMOLOGICAL PHOTOGRAPHIC APPARATUS - An ophthalmological photographic apparatus includes an observation moving-image photographic unit configured to photograph an observation moving image of a subject's eye, a still-image photographic unit configured to photograph a still image of the subject's eye, an image display unit configured to display at least one of the observation moving image and the still image, and a display content control unit configured to cause the image display unit to display one of the observation moving image and the still image when the still-image photographic unit photographs a still image. | 06-23-2011 |
20110157550 | Adaptive Photoscreening System - Briefly described, one embodiment of the system, among others, can be implemented as follows. The system includes a computer control system and an environmental light source that is controlled by the computer control system such that an amount of light provided by the environmental light source is adjusted by the computer control so that ocular parameters of an examinee are within a targeted range. Further, the system includes an irradiation system that provides multiple angle and axial eccentricity illuminations and selective wavelength irradiation based upon instructions received from the computer control system, wherein the computer control system instructs the irradiation system to provide different irradiation characteristics for different screening procedures. Also, the system includes an image detection system that captures ocular images of the examinee, wherein the computer control system analyzes captured images and provides results of in-situ analysis. The system can further include a device, for example a lens or lens system, positioned in the system to be between the eye of the examinee and the image detection system during photoscreening for shifting the neutralization of the system to a desired region for a specific population of examinees. Other systems and methods are also provided. | 06-30-2011 |
20110157551 | DEVICE AND METHOD FOR OPTICALLY MEASURING THE TRANSMISSION AND DIFFUSION OF OCULAR MEDIA - An optical device for measuring the transmission and diffusion of a tissue of the front segment of an eye, includes: a light source; an optical collimation system for directing the collimated light beam towards a tissue of the front segment of an eye to be characterized; an optical mire placed on the optical path between the optical collimation system and the tissue; an optical imaging system capable of receiving a light beam transmitted by the mire and the tissue and capable of forming an image of the mire on an image detector; and an image processing system capable of calculating a modulation transfer function for the tissue from an image of the mire through the ocular medium. The optical mire includes a set of alternately light and dark angular sectors radially distributed from a central point. Different image processing methods for extracting a function representing the transmission and diffusion characteristics of the tissue are described. | 06-30-2011 |
20110164218 | METHOD AND APPARATUS FOR OCULAR SURFACE IMAGING - The invention provides apparatuses and methods for detecting ocular surface defects. The methods and/or an apparatus of the invention can be used to detect ocular surface diseases, such as dry eye, uveitis, conjunctivitis, keratitis, keratoconjunctivitis, vernal keratoconjunctivitis (VKC), atopic keratoconjunctivitis (AKC), autoimmune disorders of the ocular surface, meibomianitis, conjunctival hyperemia, eyelid hyperemia, ocular rosacea, ocular inflammation, or eye lid swelling. | 07-07-2011 |
20110164219 | OPTHALMOLOGIC IMAGING APPARATUS AND OPTHALMOLOGIC IMAGING METHOD - An ophthalmologic imaging apparatus that captures a fundus image of a subject's eye includes a first extraction unit configured to extract, from a first fundus image photographed with a first light quantity, an image of a first area having intensity not less than predetermined intensity and an image of a second area other than the first area, a second extraction unit configured to extract an image of an area corresponding to the first area from a second fundus image photographed with a second light quantity based on the light quantity of the first area, a third extraction unit configured to extract an image of an area corresponding to the second area from a third fundus image photographed with a third light quantity based on the light quantity of the second area, and an image combining unit configured to combine the images extracted by the second and the third extraction units. | 07-07-2011 |
20110170060 | Gaze Tracking Using Polarized Light - A gaze-tracking system uses separate “glint” and “pupil” images to determine the position of the pupil relative to the position of the glint. Since separate images are obtained, the exposures can be independently optimized for each image's intended purpose (e.g., locating the glint or locating the pupil, respectively). Polarizers are used to eliminate the glint in one image. This more saliently reveals the pupil, allowing its position relative to the glint to be determined more precisely, and enhancing the accuracy and robustness of the system. | 07-14-2011 |
20110170061 | Gaze Point Tracking Using Polarized Light - A process and a system that determine a glint position and a pupil position are disclosed. The process includes illuminating one eye to produce a glint on that eye, and obtaining a glint image of that eye showing that glint on that eye. A glint position is determined at least in part from that glint image. The process further includes illuminating that eye using polarized light, and obtaining, through a polarizer that can attenuate reflected polarized light, a pupil image of that eye. A pupil position is determined at least in part from that pupil image. | 07-14-2011 |
20110170062 | FUNDUS OBSERVATION APPARATUS - A fundus observation apparatus that is capable of assisting an examiner in judging the presence or absence of abnormality in an examinee's eye based on a fundus tomographic image. The fundus observation apparatus includes an optical coherence tomography device that has an optical scanner for setting an image pickup position on a fundus of an examinee's eye, and is arranged to obtain a tomographic image of the fundus, and an information display unit that is arranged to display on a monitor the tomographic image obtained by the optical coherence tomography device and assisting information for assisting an examiner in performing judgment on the tomographic image, and the information display unit is arranged to change the assisting information based on image pickup information on the tomographic image. | 07-14-2011 |
20110170063 | OPHTHALMOLOGIC IMAGING APPARATUS AND OPHTHALMOLOGIC IMAGING METHOD - An ophthalmologic imaging apparatus that captures an image of a subject's eye is provided. The apparatus includes a focusing unit configured to focus light returned from the subject's eye that is illuminated by the light of a first wavelength, onto an imaging unit, and a moving unit configured to move the focusing unit based on an optical path length difference between the light of the first wavelength and the light of a second wavelength that is different from the first wavelength when light returned from the subject's eye that is illuminated by the light of the second wavelength is focused onto the imaging unit. | 07-14-2011 |
20110176106 | PORTABLE EYE MONITORING DEVICE AND METHODS FOR USING THE SAME - A portable device in the form of a mask ( | 07-21-2011 |
20110176107 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS AND CONTROL METHOD FOR THE SAME - There is provided an optical tomographic imaging apparatus for imaging a tomographic image capable of setting characteristics of an optical system to accommodate to different positions on an object. The apparatus using an OCT system, includes: a scanning device for scanning measuring beams, an irradiating device for irradiating a different irradiation area on the object with the measuring beams scanned by the scanning device, an adjusting device for adjusting an irradiation position on the object of the measuring beams irradiated by the irradiating device, and a detecting device for detecting each combined beam produced from light interference between each of the return beams and the reference beams, characterized in that: the detecting device includes spectroscopy devices and a sensor, and a spectral width of the combined beam acquired with the sensor through the spectroscopy devices is set at a different spectral width by the spectroscopy devices. | 07-21-2011 |
20110176108 | Image processing method and image processing device - An ocular fundus image is captured by a fundus camera. Blood vessel regions are erased from the ocular fundus image, and a luminance region greater than a prescribed luminance threshold value and having an area equivalent to a predetermined standard disc area is extracted as a region having a standard disc area. The region having the standard disc area is divided into a plurality of regions by a plurality of dividing lines extending radially from the center of gravity thereof, and divided regions are scanned radially from the center of gravity while angles are shifted to detect in each individual region a point at which luminance variation reaches a maximum. The contour line of the disc region is derived from these points. | 07-21-2011 |
20110176109 | Fundus Camera - A hand camera for photographing an eye fundus is provided. The camera consists of a tube ( | 07-21-2011 |
20110176110 | ARRANGEMENTS AND METHOD FOR MEASURING AN EYE MOVEMENT, PARTICULARLY A MOVEMENT OF THE FUNDUS OF THE EYE - In addition to a first detector for capturing a potential movement field of the eye in overview images, a second detector is used to capture a particular section of the eye in sectional images. From a displacement between two overview images and an intermediate displacement between two sectional images taken between said overview images, the eye movement is determined by linking said displacements. The sections are preferably illuminated by coherent light such that interfering light diffused on the eye produces a patch pattern. Alternatively, the sclera of the eye is illuminated with coherent light such that light diffused on the sclera produces a patch pattern, of which a particular part is captured using a spatially resolving detector in sectional images, on the basis of which an intermediate displacement is determined. | 07-21-2011 |
20110194072 | COMPACT ADAPTIVE OPTIC-OPTICAL COHERENCE TOMOGRAPHY SYSTEM - Badal Optometer and rotating cylinders are inserted in the AO-OCT to correct large spectacle aberrations such as myopia, hyperopic and astigmatism for ease of clinical use and reduction. Spherical mirrors in the sets of the telescope are rotated orthogonally to reduce aberrations and beam displacement caused by the scanners. This produces greatly reduced AO registration errors and improved AO performance to enable high order aberration correction in a patient eyes. | 08-11-2011 |
20110199577 | ARTICLE FOR USE IN AN OCT-METHOD AND INTRAOCULAR LENS - An article for use in an OCT method, the article comprising a solid substrate and nanoparticles dispersed in or on the substrate in at least one light transmissive portion of the article such that the nanoparticles result in an increased extinction of the light transmissive portion along a transmission direction of the light transmissive portion compared to the substrate being free of nanoparticles. The extinction of the light transmissive portion along the transmission direction is less than 6, wherein the extinction is defined as a negative decadic logarithm of a ratio of an intensity of light which is transmitted through the light transmissive portion to an intensity of light which is incident on the light transmissive portion, wherein the light is in at least one of a visible and a near infrared wavelength range. | 08-18-2011 |
20110199578 | Imaging System - According to certain embodiments, foveal array elements of a foveal region of a focal plane array are sampled at a faster sampling rate to yield foveal array data. Peripheral array elements of a peripheral region of the focal plane array are sampled at a slower sampling rate or sparser sampling density to yield peripheral array data. The foveal array data is processed to yield foveal image data for a foveal region of a display. The peripheral array data is processed to yield peripheral image data for a peripheral region of the display. | 08-18-2011 |
20110205489 | Optical observation device for observing an eye - An optical observation device ( | 08-25-2011 |
20110205490 | OPTICAL TOMOGRAPHIC IMAGE PHOTOGRAPHING APPARATUS - An aspect of the invention allows for enhancement of the visibility of a tomographic image movie-displayed on a monitor. An optical tomographic image photographing apparatus includes: an interference optical system for combining reflected light with reference light on an object to guide the combined light to a detector; a driving part for moving an optical member in an optical-axis direction in order to adjust an optical path difference between measurement light and the reference light; an image obtaining part for obtaining a tomographic image of the object based on a light receiving signal output from the detector; and a control unit configured to detect positional deviation with respect to a depth direction in the tomographic image and to correct a display position of the tomographic image such that the tomographic image is displayed in a predetermined position within a display region on a monitor. | 08-25-2011 |
20110205491 | MULTIFUNCTIONAL OPHTHALMIC TEST DEVICE - A configuration is adopted, which includes: a shallow-bottom hemispherical screen and a deep-bottom hemispherical screen, which are different in depth from each other. The deep-bottom hemispherical screen belongs to an entirety of a hemispherical screen composed of the shallow-bottom hemispherical screen and a peripheral edge portion of the hemispherical screen. In accordance with a type of an implemented ophthalmic test, a multifunctional ophthalmic test device drives the deep-bottom hemispherical screen or the shallow-bottom hemispherical screen so that either of the deep-bottom hemispherical screen and the shallow-bottom hemispherical screen can be located at a position onto which an ophthalmic test image is projected by a projector. In this state, the projector projects the ophthalmic test image onto either of the deep-bottom hemispherical screen and the shallow-bottom hemispherical screen. In such a way, a multifunctional ophthalmic test device is provided, which is capable of performing various types of ophthalmic tests by using a hemispherical screen. | 08-25-2011 |
20110211160 | OPHTHALMIC APPARATUS - An ophthalmic apparatus comprises: a main unit including a photographing device for photographing an examinee's eye; a monitor provided in the main unit, the monitor including a displaying device for displaying an image of the eye photographed by the photographing device and a setting device for setting a predetermined function; a rotation mechanism for rotating the monitor from an almost vertical position to an almost horizontal position with respect to the main unit; a first lock mechanism for locking the monitor at each predetermined tilt angle, the first lock mechanism being arranged to allow upward rotation of the monitor but restrict downward rotation of the monitor in the course of rotating the monitor from the almost vertical position to the almost horizontal position; and a first unlock mechanism arranged to release the restriction of the downward rotation of the monitor by the first lock mechanism based on further upward rotation of the monitor after the monitor is locked in a first maximum tilt lock position by the first lock mechanism. | 09-01-2011 |
20110211161 | Diagnostic, Prescriptive, And Data-Gathering System And Method For Macular Pigment Deficits And Other Eye Disorders - A macular health measurement and storage system comprises a plurality of macular-pigment measurement machine for measuring macular pigment density in humans, a plurality of computers each of which is associated with a corresponding one the macular-pigment measuring machines, and a central host. The plurality of macular-pigment measurement machines include a device for receiving macular pigment data from a patient, at least one data transfer port, and at least one processor that enables the transfer of the macular pigment data from the transfer port. The plurality of computers include a first port coupled to the data transfer port of the corresponding macular-pigment measurement machine for receiving the macular pigment data. Each of the computers includes a second port for transferring patient data. The central host is coupled to the second ports on each of the plurality of computers. The central host includes a storage device for storing the patient data. | 09-01-2011 |
20110228220 | OPHTHALMOLOGIC IMAGING APPARATUS AND METHOD FOR CONTROLLING THE SAME - An ophthalmologic imaging apparatus includes: a control unit configured to control, based on a pixel value of the optic papilla in an infrared light image of the fundus of a subject's eye to which infrared light is radiated, the light amount of visible light to be radiated onto the subject's eye; and an imaging unit configured to capture an image of the fundus of the subject's eye to which visible light having the controlled light amount is radiated. | 09-22-2011 |
20110228221 | APPARATUS AND METHOD FOR GENERATING TWO-DIMENSIONAL IMAGE OF OBJECT USING OPTICAL COHERENCE TOMOGRAPHY (OCT) OPTICAL SYSTEM - An apparatus for generating a two-dimensional image of an object using an optical coherence tomography (OCT) optical system, includes: the OCT optical system including: a light source; a splitter for splitting light emitted from the light source into a measurement optical path and a reference optical path; a scanner arranged in the measurement optical path for scanning the object in at least one of XY directions with the split light; and a detector for detecting a spectrum of combined light of the split light from the measurement optical path reflected on the object and the split light from the reference optical path each XY position of the light on the object, and a processor for generating the two-dimensional image of the object in the XY directions by converting the number of zero cross points of an interference signal contained in the spectrum at each XY position into a luminance value. | 09-22-2011 |
20110228222 | IMAGING APPARATUS AND METHOD FOR TAKING IMAGE OF EYEGROUND BY OPTICAL COHERENCE TOMOGRAPHY - An optical unit concentrates light beams from measurement-light paths at first and second irradiation positions on an eyeground. Next, a control unit controls a scanning unit so that the light beams concentrated at the first and second irradiation positions are scanned in first and second scanning areas of the eyeground and so that the first and second scanning areas overlap to form an overlap area. A tomographic-information acquisition unit acquires first tomographic information and second tomographic information in the first and second scanning areas from interference light. Third tomographic information is acquired from the first tomographic information and the second tomographic information in the first and second scanning areas on the basis of the first tomographic information and the second tomographic information in the overlap area. | 09-22-2011 |
20110228223 | SPECTRAL CONTRAST FOR GLAUCOMA IMAGING - A system for analyzing and detecting early stage damage to the retina related to glaucoma. The reflectance of different wavelengths of light by the retinal nerve fiber layer are compared. Changes in relative reflectance values indicate damage to the retinal nerve fibers and indicate early glaucomatous optical neuropathy. | 09-22-2011 |
20110228224 | METHODS, SYSTEMS, AND DEVICES FOR MONITORING ANISOCORIA AND ASYMMETRY OF PUPILLARY REACTION TO STIMULUS - A Pupillometer is disclosed. The Pupillometer has a display, an imaging apparatus that has a pupil finder and a microprocessor, and a memory in communication with the microprocessor. The display is sized to simultaneously display a video of y or more seconds in length of a left pupil and a video of y or more seconds in length of a right pupil. The pupil finder identifies the perimeter of a pupil. The imaging apparatus is capable of recording images of an individual's pupils at a rate of x image frames per second for a period of y or more seconds and playing back said image frames as a video at x image frames per second or at another rate that is faster or slower than x image frames per second. The memory has stored therein a program for enabling said microprocessor to do the following: (i) identify a center of the left pupil and a center of the right pupil for each image frame; (ii) synchronize each image frame of the two videos starting from the first frame; (iii) cause the display to display the two videos simultaneously such that each of the image frames of the video of the left eye is synchronized to a corresponding image frame of the video of the right eye when played back on the display; and (iv) cause the two videos to be displayed so that the center of the left pupil in each image frame is aligned on the display with the center of the right pupil for the corresponding image frame. | 09-22-2011 |
20110234975 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS AND IMAGING METHOD FOR OPTICAL TOMOGRAPHIC IMAGE - Provided are an optical tomographic imaging apparatus and an imaging method for an optical tomographic image, in which high measurement sensitivity and high lateral resolution of a specific portion of an object may be obtained with a simple structure. The optical tomographic imaging apparatus of a Fourier-domain method includes: an optical path length adjustment portion for adjusting an optical path length of the reference beam; a position adjustment portion for adjusting a position of a focusing device for focusing the measuring beam onto the object; and a drive control portion for controlling drive of the optical path length adjustment portion and the position adjustment portion. The drive control portion is controlled based on information from a layer constituting a cross section from cross section information that is obtained in advance for a portion to be imaged of the object. | 09-29-2011 |
20110234976 | RETINAL IMAGING SYSTEM FOR THE MOUSE OR RAT OR OTHER SMALL ANIMALS - A small animal imaging system comprising a base element and a camera coupled to the base element, the camera being sized to image the eye of a small animal. A light-emitting diode is also included coupled to the base element. An OCT imaging apparatus is also included coupled to the base element. An X-Y scanner is also included coupled to the base element in communication with the OCT imaging apparatus. | 09-29-2011 |
20110242483 | REAL-TIME MEASUREMENT/DISPLAY/RECORD/PLAYBACK OF WAVEFRONT DATA FOR USE IN VISION CORRECTION PROCEDURES - One embodiment is an apparatus/system for providing feedback to a procedure. The apparatus includes a real time wavefront sensor for measuring the wavefront of an optical beam, a real time video camera for capturing a scene where the optical beam comes from, a computer for processing the captured wavefront data and synchronizing the data with the video and outputting the synchronized information to a display, and a display for simultaneously displaying the synchronized wavefront and video information. Another embodiment of the present invention is a method for providing feedback to a procedure. The method involves the steps of measuring the wavefront of an optical beam with a real time wavefront sensor; capturing a video of a scene from which the optical beam comes; processing the captured wavefront data and synchronizing it with the video; and simultaneously displaying the wavefront information with the video on the same display screen. | 10-06-2011 |
20110242484 | IMAGE PROCESSING APPARATUS AND METHOD - An image processing apparatus for supporting imaging diagnosis of an eye is provided. A layer boundary of a retina region is detected from a tomographic image. A position where the detected layer boundary intersects with an upper or lower limit position of the image in the depth direction of the tomographic image is determined as a dividing position. The tomographic image is divided at the determined dividing position by a scan line in the depth direction of the tomographic image. Subsequently, whether the detection is a false detection is judged for each divided region. An average density value of the image outside the retina region according to the detected result is calculated for each divided region, and the detection in the divided region is judged to be a false detection if the average density value is equal to or greater than a predetermined threshold. | 10-06-2011 |
20110242485 | FLUORESCENCE IMAGE ACQUISITION METHOD, FLUORESCENCE IMAGE ACQUISITION PROGRAM, AND FLUORESCENCE IMAGE ACQUISITION APPARATUS - A fluorescence image acquisition method including: irradiating an eyeground with a short-pulse beam of light for exciting a fluorescent dye; setting the time point of emission of the light as a reference, measuring the intensities of luminescence of the fluorescent dye at two different times which are predetermined periods of time after the reference, determining the ratio between the intensities of luminescence at the two different times, and detecting the intensity of luminescence of the fluorescent dye having marked a target by using the ratio; and generating a fluorescence image of the fluorescent dye having marked the target, based on the results of detection by the detecting step. | 10-06-2011 |
20110242486 | AUTISM DIAGNOSIS SUPPORT APPARATUS - An autism diagnosis support apparatus | 10-06-2011 |
20110242487 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS - Provided is an optical tomographic imaging apparatus that can suppress variations of resolution, sensitivity, and the like and reduce the number of components for equalizing optical properties so that cost can be reduced, in a case of an OCT apparatus using a plurality of lights. The optical tomographic imaging apparatus for obtaining a tomographic image of an object includes an optical property adjusting unit for adjusting an optical property of at least one light of measurement lights, reference lights, and interference lights each comprised of a plurality of lights. The optical property adjusting unit is shared by each group including measurement lights having substantially the same distance from an optical axis of an irradiation optical system among the measurement lights comprised of a plurality of lights. | 10-06-2011 |
20110249237 | Pupilometer for Pupil Center Drift and Pupil Size Measurements at Different Viewing Distances - The present invention generally provides improved devices, systems, and methods for measuring characteristics of at least one eye, and particularly for measuring the physiological changes in eyes under different viewing conditions. An exemplary embodiment provides a pupilometer which measures any changes in location of a pupil center with changes in viewing distances. As the eye often moves significantly during viewing, the pupil center location will often be measured relative to a convenient reference of the eye such as an outer iris boundary. Pupil size may also be recorded, and the measurements from both eyes of a patient may be taken simultaneously. Exemplary embodiments may be configured so as to allow the vergence angle between the eyes to vary with differing viewing distances, regardless of whether one or both eyes are being measured. | 10-13-2011 |
20110261320 | ARRANGEMENT FOR ATTAINING HIGH-PRECISION MEASUREMENTS OF AN EYE - A solution for attaining high-precision and reproducible measurements during opthalmological biometry and imaging includes an illumination unit for producing a fixation marker, a device for transmitting the light of the produced fixation marker into the eye, a measurement device and a control unit. The illumination unit includes a device for the targeted change of the beam direction of the produced fixation marker. A camera for the detection of the line of vision of the eye is connected to the control unit. The control unit determines the sufficient congruity between detected line of vision and displayed beam direction of the produced fixation marker and, in dependence of the degree of probability of the congruity, triggers a measurement. The suggested arrangement is applicable for opthalmological diagnostic devices, which exhibit a camera and a measuring system, whereby measurements can be taken in all areas of the eye. | 10-27-2011 |
20110261321 | LENSLET ARRAY FOR RETINAL OXIMETRY - The multi-aperture system of the present invention provides a retinal oximetry apparatus for determining the level of oxygen saturation in retinal vessels using a lenslet array comprising at least seven lenses for the simultaneous measurement of reflected light with at least three wavelengths and at least four polarization states. The multi-aperture system of the present invention further provides an apparatus for determining the level of oxygen saturation in retinal vessels using a lenslet array comprising at least ten lenses for the simultaneous measurement of reflected light with at least three wavelengths for oxygen measurement, at least three wavelengths for melanin content, and at least four polarization states. Methods of operating the same are also provided. | 10-27-2011 |
20110267580 | CHARACTERISTIC IMAGE EXTRACTION METHOD AND OPHTHALMOLOGIC APPARATUS - Provided is an ophthalmologic apparatus for detecting an eye movement from movements of a plurality of characteristic points within a fundus image. It is determined whether or not the plurality of characteristic points are included in a new fundus image when a position of a fixation index is changed, based on a relationship between a displacement amount of the fixation index and positions of the characteristic points within a fundus plane. If it is determined that at least one of the plurality of characteristic points is not included in the new fundus image, new characteristic points are extracted from a limited range within a new fundus plane image. Accordingly, the characteristic points can be efficiently reacquired for eye movement detection performed when an imaging target region of an eye to be inspected is changed by the fixation index. | 11-03-2011 |
20110267581 | OPHTHALMOLOGIC APPARATUS AND OPHTHALMOLOGIC OBSERVATION METHOD - To accurately detect a movement of an object based on an image distorted by the movement of an eye to be inspected, which is acquired by a scanning imaging system, provided is an ophthalmologic apparatus including: an extraction means for extracting a plurality of characteristic images from a first fundus image of the eye to be inspected; a fundus image acquisition means for acquiring a second fundus image of the eye to be inspected during a period different from a period during which the first fundus image is acquired; and a calculation means for calculating at least a rotation of movements of the eye to be inspected based on the plurality of characteristic images and the second fundus image. | 11-03-2011 |
20110267582 | OPHTHALMIC APPARATUS - An ophthalmic apparatus includes an imaging optical system for imaging an anterior segment image including a pupil of an examinee's eye, a pupil detection unit for detecting a size of the pupil of the examinee's eye based on the imaged result by the imaging optical system, and an output unit configured to obtain size information of a far vision zone and a near vision zone for a multifocal intraocular lens and output the obtained size information and the size of the pupil detected by the pupil detection unit to be comparable. Accordingly, applicability of the multifocal intraocular lens can be determined accurately and easily. | 11-03-2011 |
20110267583 | OPTICAL IMAGE MEASURING DEVICE AND CONTROL METHOD THEREOF - A low-coherence light is split into a signal light and a reference light. The optical path length of the reference light is switched to optical path lengths that correspond to a first depth zone and a second depth zone. When forming a tomographic image of the second depth zone, in an optical system that condenses the signal light to the first depth zone when a measured object and an objective lens are located at a predetermined working distance, while being positioned at the working distance, a depth zone switching lens that transitions the depth at which the signal light is condensed to the second depth zone is inserted. | 11-03-2011 |
20110267584 | EYE PORTION DIAGNOSIS SUPPORT APPARATUS, METHOD THEREFOR, PROGRAM, AND RECORDING MEDIUM - There is provided a technique for efficiently acquiring a tomogram of an eye portion. A diagnosis support apparatus includes a wide-area image acquisition means for acquiring a wide-area image of an eye portion, a detection means for detecting a lesion candidate on the eye portion by analyzing the wide-area image acquired by the wide-area image acquisition means, a determination means for determining a parameter associated with acquisition of a tomogram of the eye portion, based on a lesion candidate detection result obtained by the detection means, and a tomogram acquisition means for acquiring a tomogram of the eye portion based on the parameter determined by the determination means. | 11-03-2011 |
20110273667 | ENHANCED OPTICAL COHERENCE TOMOGRAPHY FOR ANATOMICAL MAPPING - A system, method and apparatus for anatomical mapping utilizing optical coherence tomography. In the present invention, 3-dimensional fundus intensity imagery can be acquired from a scanning of light back-reflected from an eye. The scanning can include spectral domain scanning, as an example. A fundus intensity image can be acquired in real-time. The 3-dimensional data set can be reduced to generate an anatomical mapping, such as an edema mapping and a thickness mapping. Optionally, a partial fundus intensity image can be produced from the scanning of the eye to generate an en face view of the retinal structure of the eye without first requiring a full segmentation of the 3-D data set. Advantageously, the system, method and apparatus of the present invention can provide quantitative three-dimensional information about the spatial location and extent of macular edema and other pathologies. This three-dimensional information can be used to determine the need for treatment, monitor the effectiveness of treatment and identify the return of fluid that may signal the need for re-treatment. | 11-10-2011 |
20110273668 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS AND IMAGING METHOD FOR AN OPTICAL TOMOGRAPHIC IMAGE - Provided is an optical tomographic imaging apparatus capable of, when imaging a tomographic image of an object, monitoring an incident state represented by an incident position and an incident angle of a measuring beam group with respect to the object, causing the measuring beam group to form an image at a predetermined position of the object, and obtaining the tomographic image at high speed. The optical tomographic imaging apparatus is featured in that one of multiple beams emitted from a light source to be split and multiple beams emitted from multiple light sources are split into a measuring beam group and a reference beam group, and the optical tomographic imaging apparatus includes a monitoring device for obtaining a monitoring image of the object, thereby capable of monitoring an incident state represented by an incident position and an incident angle of the measuring beam group with respect to the object. | 11-10-2011 |
20110279775 | Apparatus and Method for Diagnosing Disease Involving Optic Nerve - An apparatus and a method for diagnosing optic neuropathic diseases including glaucoma, are provided. The apparatus for diagnosing optical neuropathic diseases measures a thickness of a retinal nerve fiber layer (RNFL) using methods such as optical coherence tomography (OCT) and scanning laser polarimetry, and includes a scanning unit which scans along an optic nerve margin in the proximity of an optic nerve head, a pattern analyzing unit which analyzes a pattern of the RNFL scanned by the scanning unit, and a disease determining unit which determines a presence of the disease based on the pattern of the RNFL analyzed by the pattern analyzing unit. | 11-17-2011 |
20110279776 | SYSTEMS AND METHODS FOR WIDEFIELD MAPPING OF THE RETINA - Systems and methods for constructing a widefield image of the retina from a plurality of retinal images. In one aspect, the disclosure concerns constructing a widefield image of the retina from a plurality of retinal images, comprising a base image and a plurality of peripheral images. These techniques enable medical observations of retinal phenomena in patients, such retinal vein occlusion, artery occlusion, retinal detachments, intraocular inflammation, ocular tumors, and the like, that were difficult to detect and impossible to quantify under prior art approaches. | 11-17-2011 |
20110292337 | OPHTHALMIC APPARATUS AND CONTROL METHOD THEREOF - In an ophthalmic apparatus, reflected light from an eye to be examined, illuminated by an observation light source of emitting continuous light is split into a light splitting unit and an optical viewfinder, and a fundus image where an examiner can observe is provided by the optical viewfinder. An imaging unit sets light quantity of the observation light source by using a moving image obtained by imaging the split and reflected light. After completing the setting of the light quantity, the imaging unit moves the light splitting unit from an optical axis, illuminates the fundus by driving the imaging light source, and obtains a still image. | 12-01-2011 |
20110292338 | OPHTHALMIC IMAGING APPARATUS AND CONTROL METHOD THEREOF - An ophthalmic imaging apparatus divides a frame image obtained by capturing a moving image into a plurality of regions grouping pixels, and acquires photometric values corresponding the plurality of the regions. Further, the ophthalmic imaging apparatus determines acknowledgement or dis-acknowledgement of capturing a still image based on temporal variation of the acquired photometric values or distribution of the acquired photometric values on a fundus image. The ophthalmic imaging apparatus inhibits to execute a still image capturing of the fundus if the dis-acknowledgement of capturing is determined. | 12-01-2011 |
20110292339 | OPHTHALMOLOGIC APPARATUS, CONTROL METHOD FOR OPHTHALMOLOGIC APPARATUS, PROGRAM, AND STORAGE MEDIUM OF PROGRAM - A control unit, if insertion of a diopter correction lens or retraction of the diopter correction lens is detected, moves a focusing lens to a position according to an insertion or retraction state of the diopter correction lens corresponding to a position of the focusing lens detected by a focusing lens position detection unit. | 12-01-2011 |
20110292340 | OPHTHALMIC APPARATUS - An ophthalmic apparatus for guiding positioning an intraocular lens for astigmatism correction, includes: an obtaining unit for obtaining an anterior segment image of a patient's eye and an astigmatic axis of a patient's cornea; a feature point designating unit for defining a feature point of an iris or a sclera on the anterior segment image; and a display control unit for superimposing and displaying a gauge image that models a cornea gauge and an axis that represents the astigmatic axis of the cornea on the anterior segment image. | 12-01-2011 |
20110299034 | OPTICAL COHERENCE TOMOGRAPHY- BASED OPHTHALMIC TESTING METHODS, DEVICES AND SYSTEMS - In accordance with one aspect of the present invention, an optical coherence tomography-based ophthalmic testing center system includes an optical coherence tomography instrument comprising an eyepiece for receiving at least one eye of a user or subject; a light source that outputs light that is directed through the eyepiece into the user's or subject's eye, an interferometer configured to produce optical interference using light reflected from the user's/subject's eye, an optical detector disposed so as to detect said optical interference; and a processing unit coupled to the detector. The ophthalmic testing center system can be configured to perform a multitude of self-administered functional and/or structural ophthalmic tests and output the test data | 12-08-2011 |
20110299035 | OPTICAL COHERENCE TOMOGRAPHY APPARATUS, OPTICAL COHERENCE TOMOGRAPHY METHOD, OPHTHALMIC APPARATUS, METHOD OF CONTROLLING OPHTHALMIC APPARATUS, AND STORAGE MEDIUM - An optical coherence tomography apparatus which acquires a tomogram of a target object based on a light intensity detected for each wavelength by combining return light of measurement light from the target object with reference light corresponding to the measurement light, the apparatus comprising: a normalization unit adapted to normalize the light intensity detected for the each wavelength based on a transfer function corresponding to the wavelength resolution; and an image formation unit adapted to form a tomogram of the target object from the light intensities normalized by the normalization unit. | 12-08-2011 |
20110299036 | PORTABLE DIGITAL DIRECT OPHTHALMOSCOPE - A portable digital ophthalmoscope includes standard ophthalmoscope optics for viewing retinal images and a digital image sensor is optically coupled to the optics for providing a retinal image to a digital display and/or a storage device. | 12-08-2011 |
20110304819 | Image-Guided Docking for Ophthalmic Surgical Systems - A docking method for an ophthalmic system may include the steps of aligning a docking unit of the ophthalmic system and an eye; generating an image of an internal structure of the eye by an imaging system; improving an alignment of the docking unit with the internal structure of the eye in relation to the generated image; and docking the docking unit to the eye. The generating the image step may include computing scanning data by a processor corresponding to a scanning pattern; storing the scanning data in a data buffer; transferring the scanning data by the data buffer to an output module; outputting scanning signals by the output module to one or more scanners based on the scanning data; and scanning an imaging beam with the one or more scanners according to the scanning signals. | 12-15-2011 |
20110304820 | METHOD AND DEVICE FOR IMAGING A TARGET - The present invention relates to a method and apparatus for forming a filtered image filtered with an at least partially negative filtering spectrum. In the method a plurality of exposure combinations of exposure times and wavelength channels are determined so that at least some of the wavelength channels are on the positive area of the filtering spectrum, on which area the exposure is essentially determined to correspond with the filtering spectrum, while at least some of the wavelength channels are on the negative area of the filtering spectrum, on which area the exposure is determined to essentially correspond with the inverted filtering spectrum. Partial images are formed of the target using the said combinations of exposure times and wavelength channels by illuminating the target with the light source, by filtering the light emitted by the source of light and by detecting the light reflected or transmitted. Finally, the said image filtered with a partially negative filtering spectrum is formed of the partial images by calculation. | 12-15-2011 |
20110304821 | OPHTHALMIC APPARATUS - An ophthalmic apparatus comprising: a fundus observation optical system; a designating part for designating an area of the fundus other than a macular area from a fundus image displayed on a monitor to make alignment of the fundus area of the fundus image displayed on the monitor with the fixation target displayed on a LCD display; a judging part for detecting an approaching state of the fixation target projected on the fundus and the designated fundus area based on positional information of the fundus area designated by the designating part on the monitor after movement and positional information of the fixation target displayed on the LCD display, and judging based on a detection result, whether or not the designated fundus area and the fixation target projected on the fundus are coincident in a predetermined allowable range; and a display control part for changing the display state of the fixation target based on a judgment result of the judging part. | 12-15-2011 |
20120002164 | FUNDUS PHOTOGRAPHING APPARATUS - A fundus photographing apparatus for photographing a fundus of an examinee's eye includes: a fundus photographing optical system for obtaining a fundus image, including: an optical scanner that scans the fundus with measurement light including at least part of light emitted from a light source; and a light detector that receives light including reflected light from the fundus; a length information obtaining unit for obtaining length information on an axial direction of the eye; and a controller that adjusts driving information of the fundus photographing optical system in relation to a photographing range based on the length information obtained by the length information obtaining unit and controls the fundus photographing optical system based on the adjusted driving information to obtain a fundus image corresponding to a photographing range. | 01-05-2012 |
20120002165 | OPTICAL IMAGE ACQUISITION APPARATUS HAVING ADAPTIVE OPTICS AND CONTROL METHOD FOR THE SAME - The present invention provides an optical image acquisition apparatus, while controlling the amount of light within the range prescribed by safety standards, etc., decreasing in image acquisition time by using a simple configuration, as well as securing a high resolution of an optical image by using adaptive optics. | 01-05-2012 |
20120008091 | EVALUATING PUPILLARY RESPONSES TO LIGHT STIMULI - A solution for evaluating the pupillary responses of a patient is disclosed. The solution includes exposing one eye of a patient to flashes having varying patterns and concurrently recording the pupillary responses of both eyes of the patient to the flash. At least some of the patterns can be configured to stimulate/not stimulate the macula region of the patient's eye. The solution also can include reducing one or more non-visual stimuli experienced by the patient while the pupillary responses are being induced and recorded. | 01-12-2012 |
20120008092 | Information System and Method for Providing Information Using a Holographic Element - An information system and a method for providing information in correlation with light that is incident on an eye includes a holographic element disposed in front of the eye and a device capable of recording optical signals which detects light that is incident on the eye via the holographic element. The device capable of recording optical signals detects light which is diffracted by the holographic element before the light impinges on the eye such that the diffracted light does not enter the eye. | 01-12-2012 |
20120008093 | REFLECTANCE MEASUREMENT OF MACULAR PIGMENT USING MULTISPECTRAL IMAGING - Imaging apparatus and filters are provided for accurately imaging, assessing and measuring a patient's macular pigment. A multi-band filter is employed in combination with a color digital fundus camera to provide a method that operates with a single imaging exposure. The multiband filter has bandpass regions within spectral ranges of the red, green and blue detectors of the CCD array employed within the fundus camera, the bandpass regions being sufficiently sharply defined so as to avoid regions where the CCD detector responses spectrally overlap. This provides three discrete channels of grayscale data corresponding to the bandpass regions of the multiband filter, which can be used to calculate macular pigment topographically. Methods are also disclosed for calculating the optical density of the macular pigment and advantageously displaying the resulting data. | 01-12-2012 |
20120013848 | IMAGE ACQUISITION APPARATUS AND CONTROL METHOD THEREFOR - Provided is an image acquisition apparatus for acquiring a 3D retinal image with high resolution, which is capable of reducing a time period required for data transmission. In the image acquisition apparatus: a blink of a subject is detected; acquisition of image taking data is suspended thereafter until a line of sight becomes stable; and the data transmission to a computer is started at a timing at which a blink has been detected, thereby avoiding acquiring unnecessary data, allowing a capacity of a data buffer to be smaller, and making the data transmission efficient. | 01-19-2012 |
20120019777 | System and Method for Visualizing Objects - A method of visualizing objects using an optical system including an OCT system configured to obtain OCT data from voxels within a first volume having a first lateral extent includes obtaining position data indicative of a position of a predetermined portion of a movable instrument relative to the optical system and determining a first set of voxels from the voxels of the first volume based on the determined position such that at least 80% of the first set of voxels is located within a second volume having a second lateral extent with a size at least half the size of the first lateral extent. The method also includes obtaining OCT data of the first set of voxels, visualizing a representation of the OCT data of the first set of voxels, and repeating the steps of the method at a first repetition rate higher than 5 times per second. | 01-26-2012 |
20120019778 | EYE REFRACTIVE POWER MEASUREMENT APPARATUS - An eye refractive power measurement apparatus includes: a measuring optical system for projecting measurement light onto a fundus of an examinee's eye, and causing a two-dimensional imaging device to capture the measurement light to be reflected from the fundus as a plurality of target pattern images at different distances from a measurement optical axis; a light deflecting member arranged at a position out of a conjugate position with a pupil of the examinee's eye on an optical path of the measuring optical system; a rotor for rotating the light deflecting member about an optical axis of the measuring optical system to allow a plurality of pattern light beams to be eccentrically rotated on the pupil; and a calculator for measuring an eye refractive power of the examinee's eye based on a target pattern image to be captured by the two-dimensional imaging device. | 01-26-2012 |
20120026461 | FUNDUS OPTICAL IMAGE DEVICE - A fundus optical image device includes a light source, a first optical element set and a second optical element set. The light emitted from the light source reaches the fundus through the first optical element set. The second optical element set has at least one curvature-adjustable lens. The light emitted from the light source is reflected by the fundus and then passes through the curvature-adjustable lens to present an image of the fundus. | 02-02-2012 |
20120026462 | INTRAOPERATIVE IMAGING SYSTEM AND APPARATUS - Systems, methods and apparatuses for intraocular imaging system are disclosed comprising an optical coherence tomography (OCT) system. The OCT system has an imaging range that may enable substantial portions of an eye to be imaged. The OCT system may be coupled to an operation microscope, such that, for example, a surgeon can visualize ocular structures like the human crystalline lens and other ocular structures such as the cornea and/or vitreous while surgical instruments are in the field of view. | 02-02-2012 |
20120026463 | OPTICAL COHERENCE TOMOGRAPHIC IMAGING APPARATUS - Optical coherence tomographic imaging apparatus creating tomographic image of inspection object includes light splitting means for splitting light from light source into a single reference light and a single sample light, optical path length changing means for changing optical path length of the single reference light, reference light splitting means for splitting the single reference light whose optical path length is changed into a plurality of reference lights, sample light splitting means for splitting the single sample light into a plurality of sample lights, irradiation means for irradiating the inspection object by leading the plurality of sample lights thereto, interference signal forming means for combining returning lights of the plurality of the sample lights from the inspection object irradiated by the irradiation means with the plurality of reference lights passed through the reference-light path, and interference signal obtaining means for obtaining an interference signal from the interference signal forming means. | 02-02-2012 |
20120026464 | OPTICAL COHERENCE TOMOGRAPHIC IMAGING APPARATUS AND TOMOGRAPHIC IMAGING METHOD - An optical coherence tomographic imaging apparatus includes a first measuring beam and a second measuring beam which differ from each other in center wavelength; first adjustment unit for adjusting focusing position of the first measuring beam; second adjustment unit for adjusting focusing position of the second measuring beam; first detecting unit for detecting an interference light generated from a first returning light and a first reference beam, where the first returning light results from the first measuring beam; and second detecting unit for detecting an interference light generated from a second returning light and a second reference beam, where the second returning light results from the second measuring beam reflected or scattered, in which the focusing positions of the first measuring beam and the second measuring beam can be adjusted by the first and second adjustment unit to be at different positions in a depth direction. | 02-02-2012 |
20120033179 | METHOD AND APPARATUS FOR DETERMINING THE LOCATION OF THE OCULAR PIVOT POINT - The invention relates to a method for determining the location of the ocular pivot point (ADL) in an eye ( | 02-09-2012 |
20120038885 | DEVICES AND METHODS FOR POLARIZATION-SENSITIVE OPTICAL COHERENCE TOMOGRAPHY AND ADAPTIVE OPTICS - The present disclosure includes disclosure of devices, and methods to resolve microscopic structures. In at least one exemplary embodiment, a visualization apparatus comprises a source arm having a light source operable to emit a light beam, wherein the light beam defines a beam pathway, a reference arm comprising a reflecting surface positioned within the beam pathway, a sample arm comprising a wavefront sensor, an adaptive optics wavefront corrector, and a target, each of which are positioned within the beam pathway, wherein the adaptive optics wavefront sensor is operable to compensate for at least one aberration in the light beam, a detector arm comprising a beam detector positioned within the beam pathway, wherein the beam detector is operable to detect the reflected light beam from the reference arm and the target, and wherein the visualization apparatus is operable to minimize at least one aberration of the target. | 02-16-2012 |
20120044455 | OPTICAL IMAGING APPARATUS AND METHOD FOR IMAGING AN OPTICAL IMAGE - To provide an optical imaging apparatus capable of providing a high lateral resolution in a wide region and easily adjusting prior to imaging for imaging an optical image of an eye to be inspected which is an object, and a method for imaging an optical image. The optical imaging apparatus in which a beam from a light source is used as a measuring beam, and an image of an object is imaged based on intensity of a return beam formed of the measuring beam irradiated to the object has the following: first, an optical device for focusing the measuring beam on the object; next, a aberration detecting device for measuring a aberration of the return beam; and a focus adjusting device for adjusting the optical device based on the aberration detected by the aberration detecting device. | 02-23-2012 |
20120044456 | FUNDUS OBSERVATION APPARATUS - The controller | 02-23-2012 |
20120044457 | IMAGING APPARATUS AND IMAGING METHOD - An imaging apparatus includes changing unit for changing a positional relation of irradiation positions of a plurality of measuring beams to be radiated onto an object. The imaging apparatus includes scanning unit for scanning the plurality of measuring beams in the positional relation which has been changed by the changing unit, and acquiring unit for acquiring an optical coherence tomographic image of the object on the basis of the plurality of measuring beams. | 02-23-2012 |
20120057126 | METHOD FOR ANALYZING TEAR FILM THERMOGRAPH OF CONTACTLESS TEAR FILM THERMAL IMAGER - A method for analyzing tear film thermograph of contactless tear film thermal imager has steps of sequentially loading multiple thermographs of a tear film, recording a maximum and a minimum of temperatures for a region of interest of each one of the thermographs, dividing the thermograph into at least one temperature zone in accordance with the maximum and minimum temperatures recorded in the last step, and recording a size, a location and a bordering temperature of each one of the at least one temperature zone, analyzing a pattern and temperature variation of each one of the at least one temperature zone, and classifying stability of the tear film. The patterns of the temperature zones can be identified through circularity computation, mosaic and temperature gradient analysis. Accordingly, tear film break up patterns can be classified with the method to facilitate doctors to diagnose a dry eye patient. | 03-08-2012 |
20120057127 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - An image processing apparatus has an acquisition unit which acquires a second tomogram related to a first tomogram of an eye to be examined based on position information of an eye fundus of the eye to be examined according to a predetermined rule; and a display control unit which displays the first tomogram and the second tomogram on a display unit. | 03-08-2012 |
20120057128 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS - When an observation state by an infrared LED | 03-08-2012 |
20120062839 | APPARATUS AND METHOD FOR ILLUMINATING AND IMAGING THE RETINA OF AN EYE OF A PATIENT - An apparatus for illuminating and imaging the retina of an eye of a patient utilizes an LED as source of illumination. | 03-15-2012 |
20120062840 | Method and System for Performing Remote Treatment and Monitoring - The disclosure relates to medical databases, remote monitoring, diagnosis and treatment systems and methods. In one particular embodiment, a system for remote monitoring, diagnosis, or treatment of eye conditions, disorders and diseases is provided. This method generally includes administering a stream of droplets to the eye of a subject from an ejector device, and storing data related to the administration in a memory of the ejector device. The data may then be monitored and analyzed. | 03-15-2012 |
20120062841 | METHOD FOR FINDING THE LATERAL POSITION OF THE FOVEA IN AN SDOCT IMAGE VOLUME - Embodiments of the present invention provide methods for finding the lateral position of the fovea in an OCT image volume. In one instance, a cost function is developed whose minimum is located at or near the foveal center. This cost function includes one or more measures of retinal layer thickness and/or measures of distance from blood vessels or a priori locations. | 03-15-2012 |
20120069298 | OCULAR MODELING METHODS AND APPARATUS - A method and apparatus for modeling a lens of an eye, comprising: measuring the anterior shape of the eye's cornea; determining direct optical measurements of at least one parameter of the cornea and at least one parameter of the lens; determining the refractive index of the cornea; correcting the optical measurements to account for the effect of the refractive index of the cornea on the direct optical measurements; measuring the aberration of the eye; calculating the refractive index of the lens by combining the corrected measurements and the measured aberration; and further correcting the optical measurements of the lens to account the effect of the refractive index of the lens on the direct optical measurements. | 03-22-2012 |
20120069299 | HYBRID LASER OPHTHALMOSCOPE - Provided is a hybrid laser ophthalmoscope comprising a laser light source, a LED light source, and a holographic diffuser, wherein the holographic diffuser is configured to shape a beam of light into a Maxwellian ring. | 03-22-2012 |
20120069300 | OPHTHALMIC PHOTOGRAPHY APPARATUS - Positioning control relating to a two-aperture stop necessary for stereoscopic photography can be performed accurately and securely using a simple, inexpensive, compact, and lightweight structure. The apparatus comprises a two-aperture stop ( | 03-22-2012 |
20120075583 | PHOTOMETRY DEVICE - In a photometry device, photopic vision luminance Lp is measured by a first luminance measuring unit including a first light filter | 03-29-2012 |
20120075584 | METHODS FOR MAPPING TISSUE WITH OPTICAL COHERENCE TOMOGRAPHY DATA - Various methods are disclosed for mapping optical coherence tomography (OCT) data to facilitate review and diagnosis. In one aspect, high resolution 2D line scans are obtained along with lower density 3D cube scans and displayed in a manner to provide context to the clinician. In another aspect, OCT data is analyzed to provide information about non-uniformities of the tissue. Binary image maps of maps useful for determining tautness of membranes are also disclosed. | 03-29-2012 |
20120081664 | OPTHALMOLOGY PHOTOGRAPHING APPARATUS - A fundus camera includes an illumination unit to illuminate an ocular fundus of a subject's eye, an autofluorescent exciter filter insertable into and retractable from an illumination optical path of the illumination unit, an observation and photographing unit to receive reflection light from the ocular fundus illuminated by the illumination unit and form an ocular fundus image, an autofluorescent barrier filter insertable into and retractable from an observation and photographing optical path, an image capturing unit to capture an ocular fundus image, and a calculation unit to calculate image data, wherein the calculation unit converts the ocular fundus image which is illuminated using the autofluorescent exciter filter and captured by a color image capturing unit as a color image, in a state that no autofluorescent barrier filter is inserted into the observation and photographing unit, into a monochromatic image from specific color data of each of the pixels. | 04-05-2012 |
20120081665 | FUNDUS CAMERA - A fundus camera includes an optical path splitting unit arranged between a focusing unit and an imaging unit. The splitting unit has characteristics adapted to reflect light of a visible light region and to transmit near-infrared light. The splitting unit retreats from an optical path when a still fundus image is photographed. A quick-return mirror having such characteristics is used as the splitting unit. When near-infrared illumination light having a wavelength of about 850 nm is used, such light can be incident upon the imaging unit without loss of the amount of light. Visible light output from an internal fixation target is projected onto a subject's eye. A cornea diaphragm and a crystalline lens diaphragm are used for observing a fundus with invisible light. Each of the cornea diaphragm and crystalline lens diaphragm can be changed to another one having a different diameter. | 04-05-2012 |
20120092615 | Systems and Methods for Surgical Microscope and Optical Coherence Tomography (OCT) Imaging - A surgical microscope assembly includes a microscope main objective and microscope imaging optics. The microscope main objective and microscope imaging optics define a viewing beam path that passes from a sample through the microscope main objective and the microscope imaging optics. The assembly includes an optical coherence tomography (OCT) unit having an illumination beam and a collection beam and a beamsplitter between the microscope main objective and the microscope imaging optics. The beamsplitter is configured to direct a portion of light from the microscope main objective to the microscope imaging optics and to direct another portion of light from the microscope main objective to the OCT unit collection beam. The beamsplitter is further configured to direct an illumination beam from the OCT unit to the microscope main objective and to the sample. A beam forming unit is between the OCT unit and the beamsplitter. The beam forming unit is configured to form the illumination beam of the OCT unit so as to generally correspond to a size of the microscope main objective. | 04-19-2012 |
20120092616 | NON-CONTACT OPTICAL COHERENCE TOMOGRAPHY IMAGING OF THE CENTRAL AND PERIPHERAL RETINA - A system includes a mirror having an axis extending through a central portion thereof, and a portion of the mirror being configured to repeatedly oscillate between a first position and a second position around the axis, so as to record a field of up to 200 degrees of a portion of the central and peripheral retina, a first scanner configured to use a spectral domain optical coherence tomography system to obtain a non-contact wide angle optical coherence tomography-image of the portion of the central and peripheral retina, and a second scanner configured to obtain an image of the retina, wherein the mirror is configured to oscillate so as to move the focal point of the mirror from one side of a pupil to another side, thereby permitting scanning light inside the eye to cover a predetermined peripheral field, thus creating a two dimensional or three dimensional image of the field. | 04-19-2012 |
20120092617 | EYEGROUND IMAGING APPARATUS AND CONTROL METHOD THEREFOR - A tomographic-image pickup unit is controlled so as to capture a tomographic image in response to a signal input from a signal input unit. Then, a display unit is controlled so as to display the captured. tomographic image. An eyeground-image pickup unit is controlled so as to capture a two-dimensional image in response to a signal input from the signal input unit while the tomographic image. is displayed on the display unit. Therewith, the user can more easily perform imaging, and the time load on the subject is reduced. | 04-19-2012 |
20120099076 | IMAGING APPARATUS AND OPHTHALMIC APPARATUS - An imaging apparatus for obtaining a tomographic image of an object based on light obtained by combining returning light from the object, which is irradiated with measurement light, and reference light corresponding to that measurement light, the imaging apparatus comprising: a reference light splitting unit adapted to split the reference light into a plurality of reference light beams of different wavelength ranges, and a plurality of dispersion compensation units adapted to compensate dispersion in accordance with wavelength ranges of the plurality of reference light beams, the dispersion compensation units being provided in respective light paths of the plurality of reference light beams. | 04-26-2012 |
20120120368 | FUNDUS ANALYZING APPARTUS AND FUNDUS ANALYZING METHOD - A fundus analyzing apparatus | 05-17-2012 |
20120127427 | 3D RETINAL DISRUPTIONS DETECTION USING OPTICAL COHERENCE TOMOGRAPHY - System and method for | 05-24-2012 |
20120127428 | OPHTHALMIC PHOTOGRAPHING APPARATUS - An ophthalmic photographing apparatus of the present invention is capable of favorably assisting an examiner when a three-dimensional tomographic image is obtained. The ophthalmic photographing apparatus includes an optical scanner for two-dimensionally scanning light from a measurement light source, a detector for detecting the state of interference of measurement light from the measurement light source and reference light, an optical coherence tomography device for obtaining a three-dimensional tomographic image of an examinee's eye, an observation optical system for obtaining a front observation image of the eye as a moving image, an arithmetic analyzing unit for specifying an abnormal portion by analyzing through image processing the three-dimensional tomographic image, and a display control unit for extracting a tomographic image corresponding to the abnormal portion from the three-dimensional image, and controls a monitor to display at the same time the extracted tomographic image and the moving image of the front observation image. | 05-24-2012 |
20120133887 | TEAR FILM AND TEAR MENISCUS DYNAMICS WITH TIME-LAPSE OPTICAL COHERENCE TOMOGRAPHY - In accordance with some embodiments of the present inventions, an imaging device includes an OCT imager, a trigger, a computer coupled to the OCT imager and the trigger, the computer executing instructions for: generating a first signal at the trigger to initiate closing of an object at a first time, generating a second signal at the trigger to initiate opening of an object at a second time following the first time, acquiring a plurality of OCT data scans with the OCT imager at different time intervals following the second time, identifying an area of interest in the plurality of OCT data scans, identifying layers in the area of interest, calculating thickness measurements of the layers from the OCT data scans, and displaying the thickness measurements. | 05-31-2012 |
20120133888 | SCANNING OPHTHALMOSCOPES - The invention provides a scanning ophthalmoscope for scanning the retina of an eye and method of operating the same. The scanning ophthalmoscope comprises a source of collimated light, a first scanning element and a second scanning element. The source of collimated light and the first and second scanning elements combine to provide a two-dimensional collimated light scan from an apparent point source. The scanning ophthalmoscope further comprises a scan transfer device, wherein the scan transfer device is a reflective element and has two foci and the apparent point source is provided at a first focus of the scan transfer device and an eye is accommodated at a second focus of the scan transfer device, and wherein the scan transfer device transfers the two-dimensional collimated light scan from the apparent point source into the eye. The first and second scanning elements have operating parameters which are selected to control the direction of the two-dimensional collimated light scan from the apparent point source and/or adjust the dimensions of the two-dimensional collimated light scan from the apparent point source. | 05-31-2012 |
20120133889 | FIXATION CONTROL DEVICE AND METHOD FOR CONTROLLING THE FIXATION OF AN EYE - With some ophthalmological instruments, the patient to be examined or treated needs to gaze in a defined direction. Accordingly, the operator needs the most objective possible information as to whether the patient actually fixates the fixating target or when this may no longer be the case. The invention makes it possible to monitor fixation economically with a short reaction time and with high accuracy. Monitoring of the fixation of an eye is accomplished in an economical manner with a short reaction time and high accuracy through spectroscopic detection of fixation, particularly by identifying a reflection at the fovea or foveola based on different reflectance factors compared to the rest of the retina. | 05-31-2012 |
20120140170 | OPHTHALMIC APPARATUS, OPHTHALMIC SYSTEM, PROCESSING APPARATUS, AND BLOOD FLOW VELOCITY CALCULATION METHOD - An ophthalmic apparatus includes an irradiation unit configured to irradiate a subject's eye with a measurement beam scanned by a scanning unit, an acquisition unit configured to acquire an image of the subject's eye based on a return beam returned from the subject's eye, of the measurement beam irradiated by the irradiation unit, and a calculation unit configured to calculate a blood flow velocity of the subject's eye based on a displacement between a position of a blood cell in a first image obtained by the acquisition unit and a position of the blood cell in a second image obtained by the acquisition unit at a different time from the first image and on a difference between time when an image of the blood cell in the first image is obtained and time when an image of the blood cell in the second image is obtained. | 06-07-2012 |
20120140171 | OPHTHALMOLOGIC APPARATUS AND BLOOD FLOW VELOCITY CALCULATION METHOD - An ophthalmologic apparatus includes an irradiation unit irradiating a subject's eye with a measuring beam emitted by a scanning unit that performs scanning, a first acquisition unit acquiring a first image of the subject's eye based on the returned measuring beam from the subject's eye when the scanning unit performs scanning in a first sub scanning direction, a second acquisition unit acquiring a second image of the subject's eye based on the returned measuring beam travelling from the subject's eye, at timing different from that for the first image, while the scanning unit performs scanning in a second sub scanning direction opposite to the first sub scanning direction, and a calculation unit calculating blood flow velocity of the subject's eye based on a blood cell position in the first image, a blood cell position in the second image, and the sub scanning direction of the scanning unit. | 06-07-2012 |
20120140172 | FUNDUS PHOTOGRAPHING APPARATUS - An ophthalmic photographing apparatus includes an optical coherence tomography device provided to imaging a tomographic image of an examinee's eye. The device includes: an irradiation position changing unit for changing an irradiation position of measurement light emitted from a light source on the eye to change an imaging position on the eye; and a detector for detecting a interference state between the measurement light reflected from the eye and reference light, and a displacement detecting unit provided to detect displacement in continuity between a tomographic image having already been obtained in a first imaging region and a tomographic image to be obtained in a second imaging region different from the first imaging region. | 06-07-2012 |
20120140173 | Intraoperative Imaging System and Apparatus - Systems, methods and apparatuses for an intraocular imaging system are disclosed comprising an optical coherence tomography (OCT) system. The OCT system has an imaging range that may enable substantial portions of an eye or even a whole eye to be imaged. The OCT system may be coupled to an operation microscope, such that, for example, a surgeon can visualize ocular structures like the human crystalline lens and other ocular structures such as the cornea and/or vitreous while surgical instruments are in the field of view. | 06-07-2012 |
20120140174 | SCANNING AND PROCESSING USING OPTICAL COHERENCE TOMOGRAPHY - In accordance with some embodiments, a method of eye examination includes acquiring OCT data with a scan pattern centered on an eye cornea that includes n radial scans repeated r times, c circular scans repeated r times, and n* raster scans where the scan pattern is repeated m times, where each scan includes a A-scans, and where n is an integer that is 0 or greater, r is an integer that is 1 or greater, c is an integer that is 0 or greater, n* is an integer that is 0 or greater, m is an integer that is 1 or greater, and a is an integer greater than 1, the values of n, r, c, n*, and m being chosen to provide OCT data for a target measurement, and processing the OCT data to obtain the target measurement. | 06-07-2012 |
20120140175 | METHOD OF MOTION CORRECTION IN OPTICAL COHERENCE TOMOGRAPHY IMAGING - An image data set acquired by an optical coherence tomography (OCT) system is corrected for effects due to motion of the sample. A first set of A-scans is acquired within a time short enough to avoid any significant motion of the sample. A second more extensive set of A-scans is acquired over an overlapping region on the sample. A-scans from the first set are matched with A-scans from the second set. Comparison of the OCT scanner coordinates that produced each A-scan in a matching pair reveals the displacement of the sample between acquisition of the first and second A-scans in the pair. Estimates of the sample displacement are used to correct the transverse and longitudinal coordinates of the A-scans in the second set, to form a motion-corrected OCT data set. | 06-07-2012 |
20120140176 | Optical Coherence Imaging Systems Having a Mechanism for Shifting Focus and Scanning Modality - Some embodiments of the present invention provide adapters for use in posterior imaging systems. The adapters include lens set configured to adapt the posterior imaging system to operate as an anterior imaging system. Related optical coherence tomography systems and anterior imaging systems are also provided herein. | 06-07-2012 |
20120140177 | IMAGING CONTROL APPARATUS FOR CAPTURING TOMOGRAM OF FUNDUS, IMAGING APPARATUS, IMAGING CONTROL METHOD, PROGRAM, AND STORAGE MEDIUM - An imaging control apparatus which controls an imaging unit configured to capture a tomogram of the fundus of a target eye includes an acquisition unit configured to acquire information representing the direction of a fundus movement of the target eye, an analysis unit configured to analyze the direction of the fundus movement based on the information acquired by the acquisition unit, and a control unit configured to control the imaging unit so as to align the direction of imaging of the imaging unit with the direction of the fundus movement based on the analysis result of the analysis unit. | 06-07-2012 |
20120140178 | System and Method for Assessing Risk of Glaucoma Onset - A system and method for predicting the onset of glaucoma uses a Finite Element Model (FEM) to obtain a response profile of the Optical Nerve Head (ONH) inside an eye. To do this, the FEM is programmed with data from first and second images of the ONH that are respectively taken at the beginning and the end of an imposed pressure differential (e.g. over a range of about 8 kPa). The FEM is then subjected to a sequence of pressure increments and the resultant profile is compared with empirical data to predict an onset of glaucoma. | 06-07-2012 |
20120140179 | TOMOGRAPHY APPARATUS, CONTROL METHOD FOR THE SAME, PROGRAM, AND STORAGE MEDIUM - In a tomography apparatus that captures tomograms of a fundus through optical coherence tomography, when a measurement area in which tomograms are to be captured is set on the fundus, tomograms are acquired with use of the optical coherence tomography at a plurality of predetermined positions in the set measurement area, the number of predetermined positions being smaller than in the case of imaging for diagnosis. The acquired tomograms are then displayed inline on the screen of a display apparatus in real-time. | 06-07-2012 |
20120147325 | Surgical microscope - A surgical microscope ( | 06-14-2012 |
20120147326 | THREE-DIMENSIONAL RETINA IMAGE GENERATION DEVICE - An optical coherence eye-fundus tomography device has a high resolution and a good operability, as well as be miniaturized and be produced at a low cost. The optical coherence eye-fundus tomography device includes: a light source unit which emits a source light beam; a reference-light unit which reflects a reference light beam; an inspection unit which illuminates an object with an object scanning light beam, reflected the object scanning light beam; and a detection unit which obtains a tomographic image of the object on the basis of the interference light beam produced by interfering the reflected reference light beam with the reflected object light beam. For example, the light source unit emits the outgoing light beam that has a depth of focus of not less than 300 μm, and resolution that is 6 μm×6 μm or higher in a planar direction perpendicular to a traveling direction of the outgoing light beam. | 06-14-2012 |
20120147327 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS AND CAMERA FOR USE IN OPHTHALMOLOGIC PHOTOGRAPHING - A camera, which is removably mountable on an ophthalmologic photographing apparatus including an illumination optical system configured to illuminate a subject's eye with illumination light, includes an imaging unit configured to form an image from return light from the subject's eye through a photographing optical system in the ophthalmologic photographing apparatus, a development unit configured to develop a moving image or a still image of the subject's eye based on an output signal from the imaging unit with using a development parameter based on a wavelength range of the illumination light, and a display unit configured to display the moving image or the still image developed by the development unit. | 06-14-2012 |
20120154747 | OPHTHALMOLOGIC APPARATUS AND CONTROL METHOD THEREFOR - In order to solve problems that it takes time to take an image due to scanning and that measurement of a movement of an eyeball becomes difficult or less accurate with a lapse of time, which are inherent in a scanning-type fundus image photographing apparatus, there is provided a control method for an ophthalmologic apparatus, including: acquiring a fundus image by scanning a photographing area of a fundus with measuring light; extracting a characteristic point from the acquired fundus image; setting, in the photographing area, a partial area containing the characteristic point; acquiring an image of the partial area by scanning the partial area with the measuring light; and detecting a movement of the fundus by executing template matching based on the characteristic point and the image of the partial area. | 06-21-2012 |
20120154748 | FUNDUS CAMERA - If a position of a focus lens is greatly displaced from a focus state when automatic focusing is started, and pattern recognition cannot be performed, the process proceeds to step S | 06-21-2012 |
20120154749 | FUNDUS CAMERA - When pattern recognition of a fundus image is started in step S | 06-21-2012 |
20120162601 | FUNDUS CAMERA - A fundus camera includes an illumination optical system, an observation photographic optical system, a photographic diaphragm unit located in a position conjugate with the subject's eye in the observation photographic optical system, and an imaging unit disposed in the observation photographic optical system. The photographic diaphragm unit includes a first photographic diaphragm fixed during capturing of a still image and a second photographic diaphragm movable during capturing of a moving image. The fundus camera further includes a diaphragm driving unit configured to move the second photographic diaphragm on a plane orthogonal to an optical axis, an image recording unit configured to capture, with the first photographic diaphragm, a still image based on an output of the imaging unit and, with the second photographic diaphragm, a moving image based on an output of the imaging unit, and a display unit configured to display an image captured by the imaging unit. | 06-28-2012 |
20120169995 | METHOD AND DEVICE FOR PRODUCING HIGH-QUALITY FUNDUS IMAGES - To produce a color fundus image, the eye is illuminated with light pulses of defined wavelengths. Light reflected is recorded by a sensor and transmitted to a control unit. At least three monochromatic images at very short temporal intervals and a dark image of the fundus are recorded. After activation of a spectral-selective optical element, a color intensity distribution of the fundus is recorded by the sensor at white illumination. The monochromatic images are combined by the control unit to obtain a resulting color fundus image, wherein the color intensity distribution is used for the correction of color composition and the dark image is used for taking into account the noise of the sensor. The solution permits monitoring, documenting and/or diagnosing of the fundus and can also be executed with ophthalmological systems based on the principle of optical coherence and/or confocal imaging. | 07-05-2012 |
20120182522 | SYSTEM AND METHOD OF SCAN CONTROLLED ILLUMINATION OF STRUCTURES WITHIN AN EYE - There is provided a system, apparatus and methods for enhancing the illumination of structures of the eye using predetermined scan patterns of an illuminating light beam. The systems, apparatus and methods further provide for obtaining enhanced single images of multiple structures of the eye. | 07-19-2012 |
20120188508 | Automatic Refracto-Keratometer - An auto refracto-keratometer not only produces a black-and-white image for observing the alignment of eyes to be examined using an infrared illumination light but also has a color observation optical system for observing a condition of eyes to be examined using color-illumination light. The auto refracto-keratometer comprises an infrared optical system for examining an alignment and corneal curvature of eyes to be examined; a fogging optical system for relaxing accommodation of the eyes; a measuring optical system for measuring refractive power of the eyes; and a color observation optical system having a visible light source for emitting at least one visible light to the eyes and a 2-dimensional imaging device for detecting image of visible light reflected by the eyes. | 07-26-2012 |
20120188509 | HYBRID OCT SCANNING DEVICE - The invention provides a hybrid OCT scanning device which improves OCT scanning of targets, including adaption for a ophthalmic targets (i.e. cornea, retina and fovea areas). The invention provides a movable beam modifying element which is adapted to be interposed in the probe radiation directed to the target, and the interposition of the movable element is synchronous with the periodicity of the OCT scan beam. The beam modifying element may include any of angular deflection regions, optical delay regions, or combinations of deflection and delay regions. Such regions of deflection and/or delay translate into a governable scan range, both lateral and depth, of a target region. | 07-26-2012 |
20120194782 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD AND STORAGE MEDIUM - An image processing apparatus includes: an acquisition unit configured to acquire a tomogram of an eye portion of a patient to be examined; an information acquisition unit configured to acquire information of a predetermined portion and position information of a predetermined tissue structure from the tomogram; and a calculation unit configured to calculate an evaluation value based on a relationship between the information of the predetermined portion and a position of the predetermined tissue structure. | 08-02-2012 |
20120194783 | COMPUTER-AIDED DIAGNOSIS OF RETINAL PATHOLOGIES USING FRONTAL EN-FACE VIEWS OF OPTICAL COHERENCE TOMOGRAPHY - A system and methods of computer-aided diagnosis for ophthalmology are described that includes acquiring OCT data, determining an RPE fit from the OCT data, and displaying en face images based on the RPE fit. | 08-02-2012 |
20120200824 | OPHTHALMIC PHOTOGRAPHING APPARATUS - An ophthalmic photographing apparatus includes: an interference optical system having a light source, a splitter for splitting light from the light source into measurement light traveling toward an examinee's eye and reference light, and an optical detector for receiving combined light of the measurement light reflected by the examinee's eye and the reference light; an optical scanner arranged in an optical path of the measurement light to scan a photographing region of the examinee's eye with the measurement light; a controller for obtaining a tomographic image of the photographing region by controlling the optical scanner and processing an output signal from the optical detector; and an image processor for obtaining a combined tomographic image by combining a plurality of tomographic images corresponding to a plurality of different incident angles. | 08-09-2012 |
20120218515 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, IMAGE PROCESSING SYSTEM, SLO APPARATUS, AND PROGRAM - An image processing apparatus includes an SLO image acquisition unit configured to acquire a plurality of SLO images obtainable by an SLO apparatus that scans a target to be captured with signal light at various focus positions in an optical axis direction of the signal light. The image processing apparatus includes a structure acquisition unit configured to acquire a specific structure of the target to be captured. The image processing apparatus includes an object image acquisition unit configured to acquire an image of the specific structure from each of the plurality of SLO images captured at various focus positions according to the specific structure. | 08-30-2012 |
20120218516 | IMAGE PROCESSING DEVICE, IMAGING SYSTEM, IMAGE PROCESSING METHOD, AND PROGRAM FOR CAUSING COMPUTER TO PERFORM IMAGE PROCESSING - An image processing device includes a first identification unit configured to identify the spatial configuration of a vessel in an object to be imaged, a second identification unit configured to identify information on a blood flow rate of the vessel based on an SLO moving image obtained by signal light that has a focus position deeper than at least a part of the area of the vessel, and an acquisition unit configured to acquire information on a blood flow of the vessel based on the identified area and the information on the blood flow rate. | 08-30-2012 |
20120218517 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING SYSTEM FOR DISPLAYING INFORMATION ABOUT OCULAR BLOOD FLOW - An image processing apparatus includes an identification unit configured to identify a retinal blood vessel based on a retinal image, a measurement unit configured to measure blood flow information for the blood vessel based on the retinal image, and a display control unit configured to display the measured blood flow information by at least one selected from a depth of the identified blood vessel, a size of the identified blood vessel, and a combination of both. | 08-30-2012 |
20120224141 | FUNDUS PHOTOGRAPHING APPARATUS - A fundus photographing apparatus comprises: an anterior-segment observation optical system arranged to image an anterior-segment illuminated with infrared light to obtain an anterior-segment image; a fundus photographing optical system arranged to image a fundus illuminated with visible light emitted from a light source to obtain a fundus image; a display controller arranged to selectively display the fundus image and the anterior-segment image on a monitor; a photographing switch for inputting a photographing start signal to start photographing using the fundus photographing optical system; and a time informing part arranged to inform an elapsed time after the photographing start signal is input with the photographing switch or an elapsed time after the visible light is emitted from the light source, wherein the display controller displays the elapsed time informed by the time informing part together with the anterior-segment image on the monitor. | 09-06-2012 |
20120224142 | OCULAR FUNDUS CAMERA SYSTEM AND METHODOLOGY - An ocular fundus camera system and an associated methodology. The system includes (a) an image sensor disposed along a fundus-image reflection path adjacent that path's downstream end, and in optical communication with light carried in this path, (b) an aperture centered on the reflection path's long axis, operatively associated with, and stationary with respect to, the sensor at a location which is upstream from the sensor, and (c), for accomplishing (1) precision fundus-image focusing on the sensor, and additionally (2) autorefraction, optical, light-content shifting structure, operable selectively for producing, within that portion of the reflection path which is disposed downstream from the shifting structure, relative trans-axial displacement solely of any non-collimated light carried in that portion of the main path which is disposed upstream from the shifting structure. | 09-06-2012 |
20120229761 | PHOTOGRAPHING APPARATUS AND PHOTOGRAPHING METHOD - The present invention provides an ophthalmological apparatus capable of displaying a plurality of fundus tomographic images. A photographing apparatus includes a fundus imaging unit adapted to capture a fundus image of a subject's eye, a scanning unit adapted to scan a desired position of the fundus of the subject's eye to capture tomographic images of the subject's eye, a measuring unit adapted to measure movement amounts of the fundus of the subject's eye by performing pattern matching between a plurality of feature points in the acquired fundus image and feature points in another fundus image newly acquired at a different time, and a control unit adapted to control the scanning unit based on the measured movement amounts. | 09-13-2012 |
20120229762 | PHOTOGRAPHING APPARATUS AND IMAGE PROCESSING METHOD - To provide appropriate position information to a tomographic image of fundus in an ophthalmology apparatus for acquiring fundus tomographic images and fundus images. A calculation unit that calculates movement information of an eyeball from fundus images and a matching unit that matches the calculated movement information with fundus tomographic images are provided to the ophthalmology apparatus including a fundus image pickup apparatus to acquire an amount of movement of an eye to be inspected, wherein the calculation unit calculates movement information for the fundus tomographic image having no movement information to be further matched from the movement information of tomographic images before and after the fundus tomographic image so that movement information to be matched with the fundus tomographic image originally having no movement information is calculated from the movement information of tomographic images before and after the fundus tomographic image. | 09-13-2012 |
20120229763 | OPTICAL TOMOGRAPHIC IMAGE PHOTOGRAPHING APPARATUS AND CONTROL METHOD THEREFOR - An optical tomographic image photographing apparatus having a tracking function, capable of appropriately controlling a scan in acquiring a tomographic image. The optical tomographic image photographing apparatus according to the invention includes a fundus image photographing section which photographs fundus images of an eye to be inspected and a tomographic image photographing section which photographs tomographic images of the eye to be inspected. A control method of the optical tomographic image photographing apparatus includes the steps of: calculating coordinate values matching a plurality of previously-acquired characteristic areas in the fundus image; calculating a spatial variation between the plurality of coordinate values; and controlling the scan of a measuring light by the tomographic image photographing section for acquiring the tomographic images on the basis of a result of the calculation. | 09-13-2012 |
20120229764 | OPHTHALMOLOGIC APPARATUS AND CONTROL METHOD OF THE SAME - There is provided an ophthalmologic apparatus having a tracking function that can select a fundus image that is less affected by eye motion to reduce burdens on an operator/a patient in fundus imaging, wherein the ophthalmologic apparatus picks up a first fundus image ( | 09-13-2012 |
20120229765 | IMAGE PHOTOGRAPHING APPARATUS AND IMAGE PHOTOGRAPHING METHOD - An image photographing apparatus includes; an acquiring unit configured to acquire an image of an eye to be inspected, a measuring unit configured to measure movement of the eye to be inspected based on the image, a predicting unit configured to predict the movement of the eye to be inspected based on a cycle of the movement of the eye to be inspected which has been measured by the measuring unit, and a control unit configured to control an acquisition position where the acquiring unit acquires the image based on the movement of the eye to be inspected which has been predicted by the predicting unit. | 09-13-2012 |
20120229766 | METHOD AND DEVICE FOR DETECTING DEPOSITS IN THE EYE - A method and devices for detecting deposits, in particular amyloid plaques, in the eye, in particular in the human eye. The subject is an optical method for detecting deposits, in particular β-amyloid, in the retina, which is locally resolved and wherein the local resolution is better than the layer thickness of individual layers of the retina. The invention includes a device for optically detecting β-amyloid in the retina, which generates a locally resolved image of the retina and wherein the local resolution is better than the layer thickness of individual layers of the retina. | 09-13-2012 |
20120236259 | AUTOMATED DETERMINATION OF ARTERIOVENOUS RATIO IN IMAGES OF BLOOD VESSELS - The methods and systems provided can automatically determine an Arteriolar-to-Venular diameter Ratio, AVR, in blood vessels, such as retinal blood vessels and other blood vessels in vertebrates. The AVR is an important predictor of increases in the risk for stroke, cerebral atrophy, cognitive decline, and myocardial infarct. | 09-20-2012 |
20120236260 | TEAR FILM MEASUREMENT - A method for measuring the relative thickness of the lipid layer component of the precorneal tear film on the surface of an eye. Light is directed to the lipid layer of a patient's eye with an illuminator that is a broad spectrum light source covering the visible region and is a lambertion light emitter such that the light source is specularly reflected from the lipid layer and undergoes constructive and destructive interference in the lipid layer. The specularly reflected light is collected and focused using a collector such that the interference patterns on the tear film lipid layer are observable. The collector also produces an output signal representative of the specularly reflected light which is suitable for further analysis. | 09-20-2012 |
20120236261 | FUNDUS CAMERA - A fundus camera that obtains focus evaluation values by scanning, in which a focusing lens moves a predetermined distance according to a photographing mode before the focusing lens starts scanning for obtaining focus evaluation values. | 09-20-2012 |
20120249952 | CONTROL APPARATUS, OPHTHALMOLOGIC APPARATUS, SYSTEM, CONTROL METHOD, AND PROGRAM - A control apparatus includes a display control unit configured to cause a display unit to display an image of an anterior segment of a subject's eye captured by an imaging unit, and a control unit configured to output, based on an operation signal output from a mouse according to an operation on the mouse when an index indicating an arbitrary position on the display unit is located on the image of the anterior segment, a control signal indicating a change amount in an optical axis direction of the imaging unit of a focal position of the image of the anterior segment relative to the imaging unit. | 10-04-2012 |
20120249953 | OPHTHALMIC IMAGING APPARATUS, METHOD OF CONTROLLING OPHTHALMIC IMAGING APPARATUS AND STORAGE MEDIUM - An ophthalmic imaging apparatus which obtains a tomographic image of an eye to be examined based on light obtained by combining return light from the eye irradiated with measurement light with reference light corresponding to the measurement light, the apparatus comprising: a scanning unit configured to scan the measurement light on the eye; and a control unit configured to control the number of times of scanning by the scanning unit in accordance with a scanning position of the scanning unit on the eye. | 10-04-2012 |
20120249954 | OPTICAL COHERENCE TOMOGRAPHY APPARATUS, METHOD OF CONTROLLING OPTICAL COHERENCE TOMOGRAPHY APPARATUS, STORAGE MEDIUM, AND OPHTHALMIC SYSTEM - An optical coherence tomography apparatus includes: an acquisition unit configured to split light from a light source into measurement light and reference light, and acquire a tomogram of an eye to be examined based on interfering light obtained by interference between the reference light and return light from the eye; a positional relationship changing unit configured to change a positional relationship between the eye and an optical system including an optical path of the measurement light; and a control unit configured to control the changing unit based on a difference in slant information of the eye between two tomograms acquired by the acquisition unit. | 10-04-2012 |
20120249955 | Retro-illumination and eye front surface feature registration for corneal topography and ocular wavefront system - A method of obtaining a retro-illumination image using the beacon from an ocular wavefront path and the camera for the corneal topography path of the combined system. A digital image of the retro-illuminated view of the IOL, iris pattern and sclera is obtained. An interactive display of the retro-illuminated image is presented to the user to allow them to identify the orientation marks on the IOL. These marks identify the orientation of the IOL and an overlay line can be used to display this orientation. In addition, a 360 degree overlay can be used to enhance the display of this orientation line. | 10-04-2012 |
20120249956 | SYSTEMS AND METHODS FOR EFFICIENTLY OBTAINING MEASUREMENTS OF THE HUMAN EYE USING TRACKING - Systems and methods for efficiently obtaining optical coherence tomography (OCT) measurement data with reduced effects of motion are presented. One embodiment involves determining the amount of motion present during the collection of an OCT data set based on images of the eye collected at the same time as the OCT data, and recollecting select portions of the OCT data set when the amount of eye motion is determined to exceed a predetermined threshold. Another embodiment includes enabling or disabling a tracking feature based on the quality of the images available for tracking. Another embodiment includes reducing the effect of motion in the axial direction based on a comparison to a model of the eye constructed from OCT data. The method can also be used to reduce the presence of mirror image artifacts in an OCT image. | 10-04-2012 |
20120249957 | OPHTHALMIC PHOTOGRAPHING APPARATUS - An ophthalmic photographing apparatus includes: a first photographing unit for photographing an examinee's eye to obtain a first photography image of the examinee's eye; a second photographing unit for photographing the examinee's eye in a wider area than a photography view angle of the first photographing unit; a photography area setting unit configured to move a photography area, which is photographed by the first photographing unit, relative to the examinee's eye which is photographed by the second photographing unit; a photography position information acquisition unit configured to acquire photography position information of the first photography image of the examinee's eye from the photography area setting unit; and a storage unit configured to store the first photography image and the photography position information acquired by the photography position information acquisition unit in association with each other. | 10-04-2012 |
20120249958 | CORNEAL ENDOTHELIAL CELL PHOTOGRAPHING APPARATUS - A corneal endothelial cell photographing apparatus comprises: a main unit including: an illumination optical system for illuminating illumination light from an illumination light source toward a cornea of an examinee's eye from an oblique direction; an imaging optical system for obtaining a corneal endothelial cell image by receiving, through an imaging element, reflection light from the cornea including corneal endothelial cells; and a fixation optical system including a plurality of fixation targets and for guiding a fixation direction of the examinee's eye; a drive unit to relatively move the main unit with respect to the examinee's eye; a serial photographing unit to obtain endothelial images in series at different photographing positions in previously set up-and-down and right-and-left directions; and a monitor to display the obtained endothelial image. | 10-04-2012 |
20120249959 | APPARATUS AND METHOD FOR NON-INVASIVE DIABETIC RETINOPATHY DETECTION AND MONITORING - A fundus camera using infrared light sources, which included an imaging optical path and an optical path for focusing and positioning and two optical paths share a common set of retina objective lens, and a computer-assisted method for retinal vessel segmentation in general and diabetic retinopathy (DR) image segmentation in particular. The method is primarily based on Multiscale Production of the Matched Filter (MPMF) scheme, which together the fundus camera, is useful for non-invasive diabetic retinopathy detection and monitoring. | 10-04-2012 |
20120249960 | LIGHTING DEVICE FOR FUNDUS CAMERAS - The present invention relates to a lighting device comprising a light concentrator device operatively associated with a light source comprising a plurality of LED devices. The light concentrator device is composed of a solid transparent body comprising: a first surface ( | 10-04-2012 |
20120257163 | Video Infrared Ophthalmoscope - An ophthalmoscope includes a wearable headset. The wearable headset has a light source, a beam splitter reflecting infrared radiation from the light source to an eye, a camera collecting radiation reflected by the eye through the beam splitter, an analog to digital convertor receiving a raw signal from the camera based on the collected radiation, the analog to digital convertor converting the raw signal to a digital signal; a black and white to color converter converting the digital signal into a color signal, a streaming video converter processing the color signal into a video signal, and a pair of video monitors displaying an image of the eye based on the video signal. The wearable headset also has a video transmitter, the video transmitter transmitting the video signal to a computer over a network, the computer extracting a plurality of images from the video signal. | 10-11-2012 |
20120257164 | METHOD AND DEVICE FOR RETINAL IMAGE ANALYSIS - The present application provides methods and devices for diagnosing and/or predicting the presence, progression and/or treatment effect of a disease characterized by retinal pathological changes in a subject. | 10-11-2012 |
20120257165 | OPTICAL COHERENCE TOMOGRAPHIC IMAGING METHOD AND OPTICAL COHERENCE TOMOGRAPHIC IMAGING APPARATUS - An optical tomographic diagnostic apparatus is characterized by executing a first step (S | 10-11-2012 |
20120268714 | Non-Invasive Ocular Analyte Sensing System - A noninvasive method and apparatus for determining analyte concentration (e.g., glucose) in a subject that includes measuring light refraction from at least a portion one or more structures. One example of such structure is the subject's iris. | 10-25-2012 |
20120268715 | Pupilometer With Pupil Irregularity Detection, Pupil Tracking, And Pupil Response Detection Capability, Glaucoma Screening Capability, Intracranial Pressure Detection Capability, And Ocular Aberration Measurement Capability - A system for use during a medical procedure. The system includes a pupilometer for obtaining data descriptive of one or more pupilary characteristics from an eye of a subject, and means for delivering a noxious stimulus. The means for delivering a noxious stimulus is in communication with the pupilometer and is activated by the pupilometer thereby sending a noxious stimulus to an anatomical structure of the patient. | 10-25-2012 |
20120274897 | SYSTEMS AND METHODS FOR IMPROVED OPHTHALMIC IMAGING - Systems and methods for improving ophthalmic imaging by correlating the location of a measurement on the pupil of the eye with a quality of the measurement and further controlling subsequent measurements based on the quality are presented. Aspects of the invention include obtaining optical coherence tomography (OCT) measurements through cataracts or other media opacities, obtaining B-scans with minimized tilt, and automated OCT data acquisition of select structures in the eye. Embodiments of the invention directed towards imaging tissues with angle dependent layer contrast and mapping the size and location of cataracts in the eye are also described. | 11-01-2012 |
20120274898 | SYSTEMS AND METHODS FOR AUTOMATED CLASSIFICATION OF ABNORMALITIES IN OPTICAL COHERENCE TOMOGRAPHY IMAGES OF THE EYE - Systems and methods for classifying abnormalities within optical coherence tomography images of the eye are presented. One embodiment of the present invention is the classification of pigment epithelial detachments (PEDs) based on characteristics of their internal reflectivity, size and shape. The classification can be based on selected subsets of the data located within or surrounding the abnormalities. Training data can be used to generate the classification scheme and the classification can be weighted to highlight specific classes of particular clinical interest. | 11-01-2012 |
20120274899 | PORTABLE FUNDUS OBSERVATION APPARATUS - A portable fundus observation apparatus includes a body, at least one optical detecting module, and a data processing unit. The body includes a fixing part for fixing the body onto the ocular region of a subject. The optical detecting module includes a light source, an optical lens module, and an image capturing unit. The optical detecting module is separably fixed onto the body. The data processing unit electrically couples with the optical detecting module and processes the fundus image captured by the image capturing unit. | 11-01-2012 |
20120274900 | ULTRA WIDE-FIELD OPTICAL COHERENCE TOMOGRAPHY - Systems and methods for expanding the field-of-view of ophthalmic scanning devices are presented. An ophthalmic scanning device is designed such that the pivot point of the scanning optics is maintained at a fixed location in the pupil while the scanning optics are rotated about the eye to obtain imaging data over an increased field-of-view than can be achieved by the scanning optics alone. The rotation can be achieved using a singular rotational motion of the scanning optics about a rotational axes coincident with the scanning pivot point or can be achieved using a combination of rotational motion with a second motion either rotational or translational to maintain the scanning pivot point at the fixed location. Embodiments related to optical coherence tomography and scanning laser ophthalmoscopy are described. | 11-01-2012 |
20120274901 | OPHTHALMOSCOPE FOR OBSERVING AN EYE - An ophthalmoscope for observing an eye comprises a converging first lens system for generating a real intermediate image of a region in the eye in an intermediate image plane as well as an observation apparatus having an imaging optics for imaging the real intermediate image in an imaging plane in the observation apparatus and for imaging an aperture of the observation apparatus in a pupil of the eye. Between the first lens system and the imaging optics of the observation apparatus, a diverging second lens system is provided for enlarging a working distance between the first lens system and the pupil and for enlarging a field angle. | 11-01-2012 |
20120274902 | METHOD AND A DEVICE FOR AUTOMATICALLY MEASURING AT LEAST ONE REFRACTIVE CHARACTERISTIC OF BOTH EYES OF AN INDIVIDUAL - A method for automatically measuring at least one refractive characteristic of both eyes of a person, includes: a) adjusting at least one position of a person's head, in a reference system connected to an image capture apparatus set up to convert each captured image into a signal representing the image; b) illuminating both eyes with at least one light source, whose position is known within the reference system; c) measuring at least one sight direction parameter connected to the sight direction of the person within a reference system connected to the head thereof; d) capturing at least one retinal reflection image from the light source onto the retina of both eyes; f) determining, from the captured image in Step d), the refractive characteristic of the eyes; and h) storing the sight direction parameter in relation to the predetermined refractive characteristic during the image capture in Step c). | 11-01-2012 |
20120281184 | METHOD FOR MONITORING IMAGE OF EXAMINEE'S EYE AND MONITORING SYSTEM - A method for monitoring an image of an examinee's eye includes: obtaining first image data including a first examinee's eye image captured by a first ophthalmologic photographing apparatus, and additional information including type information on the first examinee's eye image; obtaining second image data including a second examinee's eye image captured by a second ophthalmologic photographing apparatus different from the first ophthalmologic photographing apparatus, and additional information including type information on the second examinee's eye image; recognizing the first examinee's eye image and the second examinee's eye image as the same type of images, based on the additional information; and correcting a difference between the first examinee's eye image and the second examinee's eye image. | 11-08-2012 |
20120287399 | SYSTEM AND METHOD FOR THE NON-CONTACTING MEASUREMENTS OF THE EYE - Combined equipment for non-contacting determination of axial length (AL), anterior chamber depth (VKT) and corneal curvature (HHK) of the eye, are also important for the selection of the intraocular lens IOL to be implanted, particularly the selection of an intraocular lens (IOL) to be implanted, preferably with fixation of the eye by means of a fixating lamp and/or illumination through light sources grouped eccentrically about the observation axis. | 11-15-2012 |
20120287400 | ABERRATION CORRECTION METHOD, PHOTOGRAPHING METHOD AND PHOTOGRAPHING APPARATUS - A fundus image photographing apparatus with adaptive optics generally corrects an aberration by feedback control using a wave front sensor and a wave front correction device. The reduction in the time required to correct the aberration to a high-resolution photographing level is demanded. Aberration correction information of last photographing is stored for each subject, and a stored correction value is used to correct the aberration to reduce the time before the completion of the aberration correction. If there is no stored information, a correction value for a preset reference aberration amount is used. | 11-15-2012 |
20120287401 | INTEGRATION AND FUSION OF DATA FROM DIAGNOSTIC MEASUREMENTS FOR GLAUCOMA DETECTION AND PROGRESSION ANALYSIS - Systems and methods for improving the reliability of glaucoma diagnosis and progression analysis are described. The measurements made from one type of diagnostic device are adjusted based on another measurement using a priori knowledge of the relationship between the two measurements including the relationship between structure and function, knowledge of disease progression, and knowledge of instrument performance at specific locations in the eye. The adjusted or fused measurement values can be displayed to the clinician, compared to normative data, or used as input in a machine learning classifier to enhance the diagnostic and progression analysis of the disease. | 11-15-2012 |
20120287402 | SLIT LAMP ADAPTOR FOR PORTABLE CAMERA - An adaptor for a slit lamp holds a portable camera, such as a cell phone, in place relative to a slit lamp. The adaptor is adjustable to accommodate virtually any size of portable camera through the use of screws, washers, spacers, and other adjustment mechanisms. The adaptor can be formed in two parts: an ocular engaging portion and a camera support. The two portions can be coupled together to position the camera relative to the slit lamp to photograph a patient's eye. | 11-15-2012 |
20120293769 | SYSTEMS AND METHODS OF PHASE DIVERSITY WAVEFRONT SENSING - A phase diversity wavefront sensor includes an optical system including at least one optical element for receiving a light beam; a diffractive optical element having a diffractive pattern defining a filter function, the diffractive optical element being arranged to produce, in conjunction with the optical system, images from the light beam associated with at least two diffraction orders; and a detector for detecting the images and outputting image data corresponding to the detected images. In one embodiment, the optical system, diffractive optical element, and detector are arranged to provide telecentric, pupil plane images of the light beam. A processor receives the image data from the detector, and executes a Gerchberg-Saxton phase retrieval algorithm to measure the wavefront of the light beam. | 11-22-2012 |
20120293770 | IMAGE ACQUISITION APPARATUS - An image acquisition apparatus irradiates light from a light source to an inspection object, obtains a tomographic image of the inspection object on the basis of a combined beam obtained by combining a return beam from the inspection object due to the irradiated light and a reference beam corresponding to the light, and obtains a plane image of the inspection object on the basis of the return beam from the inspection object due to the irradiated light. The apparatus performs a first scanning process to main-scan the irradiated light when the tomographic image is obtained, performs a second scanning process to main-scan the irradiated light at a speed higher than that in the first scanning process when the plane image is obtained, and performs a third scanning process to sub-scan the irradiated light when each of the tomographic image and the plane image is obtained. | 11-22-2012 |
20120293771 | COMPENSATION OPTICAL APPARATUS AND IMAGE SENSING APPARATUS - A compensation optical apparatus for obtaining and image of an object without reduction in image quality irrespective of aberration compensation, includes: a division unit for dividing a return beam from a measured object; an aberration measurement unit for measuring an aberration caused by the measured object, with a divided beam from the division unit; an aberration compensation unit for performing aberration compensation based on the aberration measured by the aberration measurement unit; a projection unit for projecting a beam obtained by the aberration compensation in the aberration compensation unit to the measured object; an acquirement unit for acquiring a value exhibiting a state of the measured object based on the return beam from the measured object, which is obtained by the beam projected from the projection unit; and a control unit for retreating the division unit from an optical path based on the value acquired by the acquirement unit. | 11-22-2012 |
20120300174 | OPHTHALMOLOGIC APPARATUS AND IMAGE CLASSIFICATION METHOD - An illumination light is projected onto a tear film lipid layer on a cornea of an eye to be examined, and the reflected light is received and the tear film lipid layer is imaged. The image of the tear film lipid layer that has been captured is processed, and the initial spread speed H′ of the tear film lipid layer at the time the eyelid has been opened is measured. The image of the tear film lipid layer that has been captured is processed, and the time until the tear film lipid layer is broken up after the eyelid has been opened and a dark area T appears is measured. The appearance time of the dark area is plotted on the Y-axis and the initial spread speed H′(0) of the tear film lipid layer is plotted on the X-axis, and the type of dry eye is classified. In such a configuration, since the type of dry eye can be classified and determined, diagnosis and treatment in accordance with the type of dry eye are made possible. | 11-29-2012 |
20120307205 | COMPACT WAVEFRONT SENSOR MODULE AND ITS ATTACHMENT TO OR INTEGRATION WITH AN OPHTHALMIC INSTRUMENT - One embodiment disclosed is a compact wavefront sensor module to be attached to or integrated with an ophthalmic instrument for eye examination and/or vision correction procedures. The front lens for relaying the wavefront from the eye to a wavefront sampling plane is positioned at the optical input port of the wavefront sensor module. The front lens is shared by the wavefront sensor and the ophthalmic instrument, and the wavefront sensor module can be made very compact while still being able to cover a large eye wavefront measurement diopter range. | 12-06-2012 |
20120307206 | FUNDUS IMAGING APPARATUS AND METHOD THEREFOR - A fundus image is displayed, which enables accurate positioning and focusing to be easily performed with respect to an eye to be examined even on a small display unit by selecting a display magnification. At a first display magnification, an opening portion “m” of a mask specifying a predetermined angle of field of the fundus is displayed with no part missed in both of horizontal and vertical directions of a display unit | 12-06-2012 |
20120320337 | SYSTEMS AND METHODS FOR IMPLANTING AND EXAMINING INTRAOCULAR LENS - Systems and methods for designing and implanting a customized intra-ocular lens (IOL) is disclosed. In one embodiment, a system includes an eye analysis module that analyzes a patient's eye and generates biometric information relating to the eye. The system also includes eye modeling and optimization modules to generate an optimized IOL model based upon the biometric information and other inputted parameters representative of patient preferences. The system further includes a manufacturing module configured manufacture the customized IOL based on the optimized IOL model. In addition, the system can include an intra-operative real time analyzer configured to measure and display topography and aberrometry information related to a patient's eye for assisting in proper implantation of the IOL. | 12-20-2012 |
20120320338 | OPHTHALMOLOGIC IMAGING APPARATUS - Provided is an ophthalmologic imaging apparatus required by the position adjustment of a fixation lamp to be turned on, by a simple operation which includes: a scanning unit; an irradiation unit for irradiating an eye to be inspected with a measuring beam through the scanning unit; a fixation lamp; a lighting position changing unit for changing a lighting position of the fixation lamp; an optical path length difference changing unit for changing an optical path length difference between the measuring beam and a reference beam corresponding to the measuring beam based on the lighting position of the fixation lamp which is changed by the lighting position changing unit; and an acquisition unit for acquiring a tomographic image of the eye to be inspected based on a beam obtained by superimposing, on the reference beam, a return beam from the eye to be inspected, which is irradiated with the measuring beam. | 12-20-2012 |
20120327365 | OPHTHALMOLOGIC APPARATUS AND CONTROL METHOD FOR THE SAME - A conventional method in which an amount of movement of an eye ball between acquired images is calculated by extracting characteristic images of the fundus and comparing the images is excellent in precision, reproducibility and stability, but requires time for image processing. The aforementioned problem can be solved by using a tracking apparatus including: a fundus imaging apparatus for acquiring a fundus image; and a measurement unit that extracts a characteristic image of a fundus image from a first fundus image captured by the fundus imaging apparatus, detects the characteristic image from a second fundus image that is different from the fundus image, and measures a position change in the fundus images from coordinates of the extracted characteristic image and the detected characteristic image in the respective fundus images, wherein a region in which the characteristic image is detected from the second fundus image is determined so that a region searched for the characteristic image from the first image includes the extracted characteristic image and is broader than a range of movement of the characteristic image resulting from movements of the eye ball within measurement time. | 12-27-2012 |
20130003015 | OPTICAL COHERENCE TOMOGRAPHY APPARATUS AND METHOD - Measuring light with a wide wavelength band is used to provide a tomographic image excellent in vertical resolution. An optical coherence tomography apparatus acquiring a tomographic image of an object to be inspected based on an interference light obtained by causing a return light from a measuring light emitted onto the object to be inspected to interfere with a reference light corresponding to the measuring light, includes: a first dispersion compensation unit having a first dispersion compensation characteristic in a wavelength band of the measuring light; a second dispersion compensation unit provided onto the first dispersion compensation unit and having a second dispersion compensation characteristic in the wavelength band of the measuring light. | 01-03-2013 |
20130003016 | CALIBRATION DEVICE FOR USE WITH A FUNDUS CAMERA - A calibration device for use with a fundus camera is described, including a mock retina having a curvature from a front portion to a back portion. The calibration device further includes a color model having a range of colors comparable to a range of colors of the fundus of an eye. The calibration device further can include a lens for magnification and is configured to facilitate generation of an image to evaluate and adjust an ophthalmic imaging system for features such as color, magnification, and resolution. | 01-03-2013 |
20130003017 | OPHTHALMOLOGIC APPARATUS AND CONTROL METHOD THEREOF - An ophthalmologic apparatus includes a scanning optical system configured to scan a plurality of different regions of a test eye with a plurality of different measurement light beams, an acquisition unit configured to acquire information about a shape of the test eye, and an adjustment unit configured to adjust a relative position between an output end of a measurement light beam that serves as a reference among the plurality of measurement light beams and an output end of other measurement light beams among the measurement light beams based on the acquired information about the shape of the test eye. | 01-03-2013 |
20130003018 | IMAGING APPARATUS AND IMAGING METHOD - An imaging apparatus according to the present invention can cause a display unit to display a scanning range of each of a plurality of measurement light beams in an intersection image (an image in a direction intersecting a direction in which an inspection object is irradiated with the plurality of measurement light beams) of the inspection object. | 01-03-2013 |
20130010259 | Region based vision tracking system for imaging of the eye for use in optical coherence tomography - For optical coherence tomography engines a method for eliminating the effects of the movement of the eye on the optical coherence tomography scan calculates the motion of the eye from an image from an auxiliary scanning system and compares a reference region to a corresponding region in the image associated with the next frame, with the change in position sensing the motion of the eye. This is followed by utilizing this sensed motion to generate accurate offsets for the scanning mirror patterns of the OCT engine. Additionally, scan skipping is utilized to obviate the effects of rapid eye movement that occur at rates faster than the image acquisition rate. | 01-10-2013 |
20130010260 | LIGHT FIELD CAMERA FOR FUNDUS PHOTOGRAPHY - Systems and methods for applying the concept of lightfield sensors to fundus photography are presented. In one embodiment, the ability to isolate specific regions of the collected lightfield are used to reduce the effects of glare in a fundus image. Additional embodiments in which aberrations can be characterized and removed, an image from a particular plane in the collected light field is used to aid in instrument alignment, and dynamic optimization of collection pupil diameter is accomplished are also presented. | 01-10-2013 |
20130010261 | FUNDUS CAMERA - The present invention refers to a fundus camera comprising:
| 01-10-2013 |
20130010262 | IMAGING APPARATUS AND IMAGING METHOD - An imaging apparatus capturing optical coherence tomographic images of a test object based on a plurality of combined light beams that are obtained by combining a plurality of return light beams from the test object irradiated with a plurality of measurement light beams and a plurality of reference light beams respectively corresponding to the plurality of measurement light beams, the apparatus including: an instruction unit configured to give instructions about amounts of changes in respective optical path length differences between the plurality of reference beams and the plurality of return light beams; and a change unit configured to change the optical path length differences based on the amounts of changes instructed by the instruction unit. | 01-10-2013 |
20130016319 | RETINAL IMAGING SYSTEMS WITH IMPROVED RESOLUTIONAANM Vohnsen; BrianAACI The Grange StillorganAACO IEAAGP Vohnsen; Brian The Grange Stillorgan IEAANM Milan; Diego Jose RativaAACI Kings Court SmithfieldAACO IEAAGP Milan; Diego Jose Rativa Kings Court Smithfield IE - A scanning ophthalmoscope focuses coherent light to a target area in which a subject's eye is located. One or more scanning stages direct the light in a scanning pattern within the target area, and an imaging detector receives a reflected light signal returned following retinal reflection in the subject's eye. Adaptive optics compensate for aberrations in the wavefront. The light is provided as an annular beam at a plane which is conjugate with the pupil of a subject whose eye is located in the target area, whereby the annular beam is focused from an annulus at the pupil of the eye to a spot at the fundus of the eye. The spot size resulting from using an annular beam in this way is significantly reduced providing enhanced resolution. | 01-17-2013 |
20130021575 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS - Provided is an optical tomographic imaging apparatus which enables simplification and cost reduction without reducing accuracy when moving part of an object is moved in an optical axis direction of measuring beam. The apparatus using return beam of measuring beam reflected or scattered by an object and reference beam reflected by a reference mirror to image the tomographic image, includes: a reflecting position controlling device for controlling the reflecting position of the reference mirror; a detecting device for a position in a moving part having an optical system for observing the moving part illuminated by an optical system imaging the same on an area sensor based on the Scheimpflug principle and detects position information that the moving part is moved in the direction; and a device for driving the reflecting position controlling device to control the optical path length of the reference beam based on the position information. | 01-24-2013 |
20130021576 | OCULAR OPTICAL SYSTEM - Provided is an ocular optical system, which permits a measuring beam scanned by two scanning units disposed close to each other to enter an anterior ocular segment of an eye to be inspected and to irradiate a fundus. The ocular optical system includes an optical unit which is disposed at a position of an intermediate image, which is optically conjugate to the fundus, and has a surface having different optical powers corresponding to scan directions of the two scanning units. | 01-24-2013 |
20130027660 | MICROSCOPE FOR OPHTHALMOLOGIC SURGERY - A microscope for ophthalmologic surgery is provided which can measure astigmatic axis angles with high accuracy regardless of the drawing positions of the patient's eye in an image frame. Astigmatism distribution information | 01-31-2013 |
20130027661 | MICROSCOPE FOR OPHTHALMOLOGIC SURGERY - A microscope for ophthalmologic surgery according to an embodiment comprises: an optical system that photographs a patient's eye; a main body part that stores at least part of the optical system; an attachment that is attached to the main body part and has multiple bright points arranged in a ring; a determination part that determines whether the eyelids of the patient's eye are open or closed by determining whether or not bright point images are depicted within a prescribed region in the frame of a first image obtained by using the optical system to photograph the patient's eye while the multiple bright points are projected thereto; and a calculation part that calculates astigmatism information of the patient's eye based on a second image obtained by using the optical system to photograph the patient's eye while the multiple bright points are projected thereto. | 01-31-2013 |
20130027662 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes a first casing which includes a light source for emitting illumination light including at least one of ultraviolet light and far-infrared light so as to illuminate a fundus of an eye to be examined, and an attenuation unit attenuating at least one of the ultraviolet light and the far-infrared light included in the illumination light, and a second casing which includes at least a part of an illumination optical system for guiding the illumination light attenuated by the attenuation unit to the fundus or a part of an imaging optical system for guiding the light reflected from the fundus to an imaging unit for imaging the fundus, and which is formed of a material lighter than the material forming the first casing. | 01-31-2013 |
20130027663 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes an integration unit which integrates a light emission amount of a light source illuminating an target eye, an integral capacitance changing unit which changes a value of an integral capacitance of the integration unit according to the light emission amount necessary for imaging the target eye, a comparison unit which compares a reference value with an integration value integrated by the integration unit using the value of the integral capacitance changed by the integral capacitance changing unit, and a light emission control unit which stops the light emission of the light source when the integration value exceeds the reference value as a result of the comparison by the comparison unit. | 01-31-2013 |
20130027664 | OPHTHALMOLOGIC APPARATUS, OPHTHALMOLOGIC PHOTOGRAPHING METHOD, AND PROGRAM - An ophthalmologic apparatus controls a second light source according to a fundus image corrected using sensitivity as to a first wavelength band and a light quantity of a first light source when a fundus image is captured. | 01-31-2013 |
20130033677 | PORTABLE HIGH SPEED PUPIL DILATION TRACKING SYSTEM - A high speed pupil dilation tracking can be incorporated into a light-weight VOG system which includes at least one digital camera connected to and powered by a laptop computer through a firewire connection. An EOG system may be incorporated directly into a VOG system base. The digital camera may digitally center the pupil in both the X and Y directions. A calibration mechanism may be incorporated onto the VOG system base. The VOG system may track and record head position and VOG system base slippage. An animated eye display may provide data in a more meaningful fashion. The VOG system may be a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems. | 02-07-2013 |
20130038835 | MICROSCOPE FOR OPHTHALMOLOGIC SURGERY - The microscope for ophthalmologic surgery | 02-14-2013 |
20130057826 | FUNDUS PHOTOGRAPHING APPARATUS WITH WAVEFRONT COMPENSATION - A fundus photographing apparatus with wavefront compensation, includes: a fundus photographing optical system for capturing a fundus image by receiving a reflected light from fundus of an examinee's eye; a wavefront compensation device placed in an optical path of the fundus photographing optical system to compensate a wavefront aberration of the examinee's eye by controlling an incident light wavefront; a wavefront aberration detection optical system for projecting a measurement light on the fundus of the examinee's eye to detect a reflected light of the measurement light from the fundus using a wavefront sensor; and a controller for controlling an effective region formed on the wavefront compensation device so as to correct a difference between the effective region formed on the wavefront compensation device where an aberration correction control is effective and a wavefront measurement region of the wavefront aberration detection optical system where the wavefront aberration is measured. | 03-07-2013 |
20130057827 | EYE PORTION DIAGNOSIS SUPPORT APPARATUS, METHOD THEREFOR, PROGRAM, AND RECORDING MEDIUM - There is provided a technique for efficiently acquiring a tomogram of an eye portion. A diagnosis support apparatus includes a wide-area image acquisition means for acquiring a wide-area image of an eye portion, a detection means for detecting a lesion candidate on the eye portion by analyzing the wide-area image acquired by the wide-area image acquisition means, a determination means for determining a parameter associated with acquisition of a tomogram of the eye portion, based on a lesion candidate detection result obtained by the detection means, and a tomogram acquisition means for acquiring a tomogram of the eye portion based on the parameter determined by the determination means. | 03-07-2013 |
20130063698 | FUNDUS OBSERVATION APPARATUS - A fundus observation apparatus according to an embodiment comprises: a photographing part that photographs the fundus of a subject eye; a forming part comprising an optical system that irradiates signal light onto the fundus and interferes reflected light of the signal light from the fundus with reference light via a reference path and detects the resulting interference light, wherein the forming part forms a tomographic image of the fundus based on the detection result; and an analyzing part that analyzes a photographed image of the fundus from the photographing part to delete predetermined low-frequency components from the photographed image. | 03-14-2013 |
20130070201 | ASSESSMENT OF MICROVASCULAR CIRCULATION - Methods and compositions are disclosed to quantitatively measure in vivo blood vessel diameter, blood velocity, and other flow dynamics. Such methods and compositions can optimize therapeutic interventions designed to prevent or reduce the risk of cardiovascular and blood disorders. In one aspect, the methods and apparatus involve calculating blood vessel characteristics from a two dimensional image of a blood vessel in the conjunctiva of a subject's eye. In another aspect, a series of temporal images of a blood vessel are obtained to determine blood flow properties. The apparatus can include, for example, a biomicroscope, an illuminating light source and a high speed camera to acquire the series of temporal images with the data then analyzed by a programmed processor. | 03-21-2013 |
20130070202 | IMAGE PROCESSING APPARATUS, OPHTHALMOLOGIC IMAGING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM - An image processing apparatus includes an identification unit configured to identify periodicity of a fundus image obtained by capturing an image of a fundus of an eye, and an information acquisition unit configured to acquire information indicating an imaging state of photoreceptor cells in the fundus image based on the periodicity. | 03-21-2013 |
20130077046 | NORMALIZATION OF RETINAL NERVE FIBER LAYER THICKNESS MEASUREMENTS MADE BY TIME DOMAIN-OPTICAL COHERENCE TOMOGRAPHY - A scan location matching (SLM) method identifies conventional time domain optical coherence tomography (TD-OCT) circle scan locations within three-dimensional spectral domain OCT scan volumes. A technique uses both the SLM algorithm and a mathematical retinal nerve fiber bundle distribution (RNFBD) model, which is a simplified version of the anatomical retinal axon bundle distribution pattern, to normalize TD-OCT thickness measurements for the retinal nerve fiber layer (RNFL) of an off-centered TD-OCT circle scan to a virtual location, centered on the optic nerve head. The RNFBD model eliminates scan-to-scan RNFL thickness measurement variation caused by manual placement of TD-OCT circle scan. | 03-28-2013 |
20130077047 | IMAGING APPARATUS, CONTROL METHOD OF THE SAME, AND PROGRAM - An imaging apparatus includes an image sensor sensitive to infrared rays, and a control circuit. The control circuit determines whether the imaging apparatus is mounted on a fundus camera in a state where an image of a fundus of a subject's eye can be captured based on reflected light flux from the fundus, and controls a function of the imaging apparatus depending on the determination. | 03-28-2013 |
20130077048 | INTEGRATED FIBER OPTIC OPHTHALMIC INTRAOCULAR SURGICAL DEVICE WITH CAMERA - A fiber optic ophthalmic surgical microscope with camera assembly comprises a fiber optic cable ( | 03-28-2013 |
20130088685 | Iris Cameras - An iris camera comprising a lens system, an image sensor arranged to capture images of an eye acquired by the lens system, and a processing unit, is described. The processing unit comprises an image analysis module adapted to measure pupil dilation of an image of an eye captured by the image sensor; and a control module arranged to generate a control signal to control a light source for illuminating the eye, the control module being arranged to generate the control signal to activate the light source to illuminate the eye when the measured pupil dilation is greater than a predetermined threshold. | 04-11-2013 |
20130088686 | EYE IMAGE AND VIDEO CAPTURE SYSTEM AND ASSOCIATED METHODS - An eye image and video capture system ( | 04-11-2013 |
20130093995 | OPHTHALMIC APPARATUS, OPHTHALMIC IMAGE PROCESSING METHOD, AND RECORDING MEDIUM - An ophthalmic apparatus includes a first acquisition unit configured to acquire a first tomogram of a subject's eye, a three-dimensional image acquisition unit configured to acquire a three-dimensional image of the subject's eye after the first tomogram is acquired, a second acquisition unit configured to acquire a second tomogram of the subject's eye corresponding to the first tomogram after the three-dimensional image is acquired, and a correction unit configured to correct a gradation of the second tomogram based on a gradation of the first tomogram. | 04-18-2013 |
20130093996 | Scanning Ophthalmoscopes - The present invention provides a scanning ophthalmoscope for scanning the retina of an eye and a method of scanning the retina of an eye. The ophthalmoscope ( | 04-18-2013 |
20130093997 | OPTICAL COHERENCE TOMOGRAPHY AND METHOD THEREOF - The image sensing apparatus comprises a first scan unit for scanning light from an OCT light source and light from an SLO light source in a first direction of a test object, and a second scan unit for scanning the light from the OCT light source in a second direction different from the first direction of the test object. The image sensing apparatus acquires tomographic images of the test object along the first direction when the first scan unit scans the light from the OCT light source, and acquires cross-over images of the test object corresponding to the tomographic images when the first scan unit scans the light from the SLO light source. | 04-18-2013 |
20130100404 | AUTOMATED DETECTION OF UVEITIS USING OPTICAL COHERENCE TOMOGRAPHY - Systems and methods for automatically detecting, classifying and quantifying clumps indicative of inflammation in the eye using optical coherence tomography images are described. Clump detection relies on both intensity and geometric thresholding. Applications of the invention include improved diagnosis, classification and monitoring of inflammatory disease. | 04-25-2013 |
20130100405 | WAVEFRONT SENSORLESS ADAPTIVE CORRECTION OF THE WAVE ABERRATION FOR AN EYE - Embodiments of the invention generally provide apparatuses and methods utilized in optics, and more specifically to apparatuses and methods for adaptive optics correction and imaging. Real-time wavefront sensorless adaptive optics correction and imaging is used with the living human eye to produce optical quality rivaling that of wavefront sensor based control in the similar systems. Using an optimization algorithm that is based on an image quality metric, the apparatus and method optimize the optical quality in ocular image frames acquired with an adaptive optics system. | 04-25-2013 |
20130100406 | Systems for Extended Depth Frequency Domain Optical Coherence Tomography (FDOCT) and Related Methods - Systems for extended depth frequency domain optical coherence tomography are provided including a detection system configured to sample spectral elements at substantially equal frequency intervals, wherein a spectral width associated with the sampled spectral elements is not greater than one-half of the frequency interval. Related methods are also provided herein. | 04-25-2013 |
20130107207 | METHOD AND SYSTEM FOR STEREO GAZE TRACKING | 05-02-2013 |
20130107208 | INTRAOCULAR LENS POWER DETERMINATION APPARATUS, INTRAOCULAR LENS POWER DETERMINATION METHOD, AND INTRAOCULAR LENS POWER DETERMINATION PROGRAM | 05-02-2013 |
20130107209 | SYSTEM FOR THE IMPROVED IMAGING OF EYE STRUCTURES | 05-02-2013 |
20130107210 | SYSTEMS AND METHODS FOR WIDEFIELD MAPPING OF THE RETINA | 05-02-2013 |
20130107211 | METHOD AND APPARATUS FOR IMAGING THE CHOROID | 05-02-2013 |
20130114041 | SYSTEMS, METHODS, AND COMPUTER-READABLE MEDIA FOR DETECTING AND PREDICTING A PROGRESSION OF RETINAL PATHOLOGIES - One aspect of the invention provides a method for training a classification algorithm to detect a retinal pathology. The method includes: for a plurality of pseudo two-dimensional data sets of one-dimensional data points, each pseudo two-dimensional data point representing RNFL thickness values for a subject and corresponding index values for the data points: performing fractal analysis on the data set to calculate a plurality of fractal dimensions and calculating a plurality of slopes between each fractal dimension; combining the plurality of slopes for subjects labeled as pathologic into a pathologic data set; combining the plurality of slopes for subjects labeled as healthy into a healthy data set; and applying a linear discriminant function the pathologic data set and the healthy data set; thereby training a classification algorithm to detect the retinal pathology. | 05-09-2013 |
20130114042 | Ocular Imaging - A system for performing quasi-elastic light scattering and fluorescent ligand scanning on a subject's eye includes a light source configured to transmit light toward the subject's eye, a lens configured to focus light sent from the source and scattered by the subject's eye, a measurement reflector disposed to receive at least a portion of the focused light and configured to reflect a first portion of the received light, a camera configured and disposed to receive the first portion of the received light and configured to provide indicia of an image corresponding to the first portion of the received light, and a processor coupled to the camera and configured to analyze intensities of light in the image to determine a location of a reference point corresponding to an interface of a portion of the eye. | 05-09-2013 |
20130120710 | Portable Optical Coherence Tomography (OCT) Systems - Portable optical coherence tomography (OCT) devices including at least one mirror configured to scan at least two directions are provided. The portable OCT devices are configured to provide a portable interface to a sample that can be aligned to the sample without repositioning the sample. Related systems are also provided. | 05-16-2013 |
20130120711 | OCT-BASED OPHTHALMOLOGICAL MEASURING SYSTEM - An ophthalmological measuring system for determining distances and/or for tomographic imaging of ocular structures, based on an OCT method. The measuring system includes a light source with a spectral centroid (λ), an interferometric measuring device, a scanner system, which in addition to the lateral deflection of the sample beam also has axial modulations with a frequency (f) in the sample arm, and a control and evaluation unit. The scanner performs a lateral, two-dimensional deflection of the sample beam with the aid of one or even two separate mirror elements and can in particular have axial modulation amplitudes z | 05-16-2013 |
20130128222 | Methods and Systems to Measure Corneal Epithelial Thickness and Power, Stromal Thickness, Subepithelial Corneal Power and Topography for Disease Diagnosis - This invention discloses methods and systems for measuring corneal epithelial thickness and power, stromal thickness, subepitheila corneal power and topography. The systems and methods disclosed herein are non-invasive, non-contact and automated imaging methods which preferably makes use of Fourier-domain optical tomography. Also disclosed herein are scanning patterns and image analysis methods for utilizing and analyzing Fourier-domain optical coherence tomography images to obtain information about conical epithelial and stromal properties as well as parameters useful for evaluating the properties. The methods and systems described herein are useful as eye disease diagnostic tools and eye surgery planning tools. | 05-23-2013 |
20130128223 | DIGITAL-BASED MEDICAL DEVICES - A hand held ophthalmic examination instrument uses an illumination system that provides amber colored light from a first light source and white light from a second light source to illuminate a target of interest. An imaging system in cooperation with the illumination system captures digital images of the target of interest as illuminated by the light sources. | 05-23-2013 |
20130128224 | Ophthalmology - The invention provides an apparatus and method for illuminating, imaging and treating the retina of an eye. The apparatus ( | 05-23-2013 |
20130128225 | OPHTHALMOLOGY - The invention provides an apparatus and method for illuminating, imaging and treating the retina of an eye. The apparatus ( | 05-23-2013 |
20130128226 | OPHTHALMOLOGIC IMAGING DEVICE - An ophthalmologic imaging device includes an optical illumination system having a cornea aperture, an iris aperture, and a lens aperture and an split mark projection system for focusing on the fundus of the subject eye. A light source is controlled by a controller to emit light for being able to obtain at least two consecutive fundus images. An inner aperture image corresponding to the lens aperture is projected on the posterior surface of the lens. The controller controls the lens aperture so that for obtaining a second fundus image, the inner aperture image is projected at a position shifted relative to the optical axis of an optical observatory or imaging system from a position at which the aperture image is projected for obtaining a first fundus image. | 05-23-2013 |
20130135582 | OPHTHALMIC APPARATUS AND RECORDING MEDIUM HAVING OPHTHALMIC PROGRAM STORED THEREIN - An ophthalmic apparatus includes: an input unit configured to obtain corneal incision information that is information on a corneal incision to be formed on a cornea of an examinee's eye; an imaging device configured to image an examinee's eye image; and a controller. The controller is configured to calculate first wavefront aberration distribution that is wavefront aberration distribution of the cornea before incision on the examinee's eye based on the examinee's eye image, obtain incision aberration information corresponding to the corneal incision information; calculate second wavefront aberration distribution that is wavefront aberration distribution after formation of the incision based on the first wavefront aberration distribution and the incision aberration information, and output guide information that guides an intraocular lens surgery based on the second wavefront aberration distribution. | 05-30-2013 |
20130135583 | OPHTHALMOLOGY - The invention provides an apparatus and method for scanning, imaging and treating the retina of an eye. The apparatus ( | 05-30-2013 |
20130135584 | EXAMINATION INSTRUMENT - Light from an exit pupil ( | 05-30-2013 |
20130141695 | Optical Imaging Systems Having Input Beam Shape Control and Path Length Control - Scanning optical beam imaging systems for imaging a surface with convex curvature are provided. The systems include a sphero-telecentric objective, wherein a scanning radius of curvature of the sphero-telecentric objective is greater than an apical radius of curvature of the surface and less than or equal to four times an apical radius of curvature of the surface. | 06-06-2013 |
20130141696 | METHOD AND DEVICE FOR OCULAR ALIGNMENT AND COUPLING OF OCULAR STRUCTURES - Embodiments provide method and systems for determining or measuring objective eye alignment in an external-coordinate system so as to define a reference axis. Additional embodiments provide a method and system of aligning an objectively determined reference axis of the eye in a selected relationship to a therapeutic axis of an ophthalmic therapeutic apparatus and/or a diagnostic axis of an ophthalmic diagnostic apparatus. Embodiments provide a method and system for planning an ophthalmic treatment procedure based on objective eye alignment in an external-coordinate system so as to define a reference axis of an eye to be treated. The reference axis may be used to position a therapeutic energy component, for example, an orthovoltage X-ray treatment device, e.g., positioned to provide treatment to tissue on the retina, such as the macula. | 06-06-2013 |
20130148080 | SURGICAL MICROSCOPE SYSTEM FOR OPHTHALMOLOGY, AND ASSOCIATED DETECTION UNIT - A surgical microscope system ( | 06-13-2013 |
20130148081 | VISUAL FIELD EXAMINATION SYSTEM - A stimulus is presented at a predetermined position of a visual field coordinate system set on a visual field dome ( | 06-13-2013 |
20130162945 | OPHTHALMOLOGIC APPARATUS, AND OPHTHALMOLOGIC CONTROL METHOD AND PROGRAM - Provided is an ophthalmologic apparatus, which can easily and quickly find a part of a crystalline lens without opacity where specific information of an eye to be inspected can be acquired (for example, eye refractive power information can be measured), when changing to a transillumination observation mode. The ophthalmologic apparatus includes: a specific information acquiring unit which acquires specific information of the eye to be inspected through a first opening; a transillumination image acquiring unit which acquires a transillumination image of the eye to be inspected; and a control unit which changes the first opening to a second opening smaller than the first opening when acquiring the transillumination image. | 06-27-2013 |
20130162946 | OPHTHALMOLOGIC APPARATUS, AND OPHTHALMOLOGIC METHOD AND PROGRAM - Provided is an ophthalmologic apparatus which is capable of performing offset adjustment of an alignment position while performing transillumination observation by automatic alignment. The ophthalmologic apparatus includes an automatic alignment unit for automatically performing alignment between a measuring portion and an eye to be inspected, and an alignment position changing unit capable of moving an optical axis center position of the measuring portion to an arbitrary position in the transillumination observation. | 06-27-2013 |
20130162947 | METHOD AND DEVICE FOR DETERMINING THE EYE TORSION - The invention relates to a device for determining eye torsion, comprising a camera and an image processing unit, which is designed to carry out a method for determining eye torsion. In the method, at least two images of an eye are recorded and image data are produced from said images, and at least one characteristic feature of the eye is identified from the image data, for example a blood vessel. Direction histograms of the feature in both images are produced and compared with each other. The angle of the torsion of the eye is determined from the shift of the directions in the direction histograms. | 06-27-2013 |
20130169931 | AUTO-FOCUSING DIAGNOSTIC EQUIPMENT - A diagnostic equipment having an auto-focusing function comprising a image detection device, a first scanning device, a mobile optical lens assembly, a focusing detection device and a first splitter assembly is provided. The image detection device comprises a first light source and a first photo detector. The first light source provides a first incident light and the first incident light incident to an object and becomes a first signal light. The first photo detector is for receiving the first signal light. The first scanning device is for adjusting a path of the first incident light and to scan the object. The mobile optical lens assembly has a lens and a mobile platform. The first splitter assembly is for transmitting the first and the second signal light to the first and the second photo detector, respectively. | 07-04-2013 |
20130169932 | ADAPTIVE OPTICS APPARATUS THAT CORRECTS ABERRATION OF EXAMINATION OBJECT AND IMAGE TAKING APPARATUS INCLUDING ADAPTIVE OPTICS APPARATUS - An adaptive optics apparatus includes a first light modulating unit configured to perform modulation in a polarization direction of one of two polarized light components in light emitted from a light source, a changing unit configured to rotate the light modulated by the first light modulating unit by 90 degrees, a second light modulating unit configured to modulate the light changed by the changing unit in the polarization direction, and an irradiating unit configured to irradiate a measurement object with the light modulated by the second light modulating unit. | 07-04-2013 |
20130176531 | SYSTEM AND METHOD FOR FAST RETINAL IMAGING - An optical system and measurement method for imaging three-dimensional objects with low light scatter comprising at least one source of radiation; a radiation projection means for creating a set of foci through a volume of an object; and a means for imaging the returned light from the set of foci on at least one camera, wherein the imaging of the volume of the object is at a different angle from the projection, allowing for detection of the returned light on separate camera pixels. The measurement method further comprises projecting a longitudinal grid of elongated foci through the volume of an object; imaging returned light from the object at a different angle on at least one camera, so as to avoid overlapping the elongated images; and analyzing the imaged, returned light to yield depth information of the object at a multiplicity of points. | 07-11-2013 |
20130176532 | DATA ACQUISITION METHODS FOR REDUCED MOTION ARTIFACTS AND APPLICATIONS IN OCT ANGIOGRAPHY - Systems and methods for reducing the effects of motion on functional optical coherence tomography (OCT) imaging are described. Embodiments including post-processing and motion tracking are presented. A preferred embodiment in which functional OCT data is collected and analyzed for motion as a multiple scan unit is described. An extension of the invention to the collection of large field of view or montaged functional OCT data sets is also presented. | 07-11-2013 |
20130182217 | FUNDUS CAMERA - An ophthalmic imaging apparatus is provided. The apparatus includes a fundus illumination system, the fundus illumination system includes a spatially interlaced light source array of one or more wavelength bands and a focus index illumination light source where the focus index illumination light source is mounted on a non-moving part of the ophthalmic imaging apparatus, a focus index optical assembly, and a fundus imaging system. | 07-18-2013 |
20130182218 | PHOTOGRAPHING APPARATUS AND PHOTOGRAPHING METHOD - In order to place a coherence gate as close as possible to a object, provided is a tomographic image photographing apparatus including: a moving unit for moving the coherence gate corresponding to a difference between an optical path length of measuring light and an optical path length of reference light; and a control unit for controlling the moving unit so as to further move the coherence gate from a second position based on first combined light and second combined light of the object, which are respectively acquired at a first position of the coherence gate and the second position at which the coherence gate is placed after being moved from the first position to the object side by the moving unit. | 07-18-2013 |
20130182219 | OPHTHALMOLOGIC IMAGE PICKUP APPARATUS AND CONTROL METHOD THEREFOR - Provided is an ophthalmologic image pickup apparatus for measuring movement of an eye to be inspected at higher speed than a conventional one. The ophthalmologic image pickup apparatus for acquiring an image of an eye to be inspected based on return light from the eye to be inspected which is irradiated with measuring light via a scanning unit, includes: a position acquiring unit for acquiring a plurality of positions of characteristic portions in the image of the eye to be inspected based on the return light from the eye to be inspected corresponding respectively to a plurality of scanning lines of the scanning unit in the image of the eye to be inspected; and a measuring unit for measuring movement of the eye to be inspected based on the plurality of positions. | 07-18-2013 |
20130182220 | IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - Provided is an image forming method of forming an object image by combining a plurality of tomographic images acquired by using an optical coherence tomographic method, including: acquiring, within a first predetermined period, a first three-dimensional image of a first area including a characteristic portion of the object and first tomographic images as a part of the plurality of tomographic images of a second area different from the first area; acquiring, within a second predetermined period, a second three-dimensional image of the first area and second tomographic images as a part of the plurality of tomographic images of the second area, the second tomographic images being different from the first tomographic images; and aligning positions of the first tomographic images and the second tomographic images by using, as references, the characteristic portion included in the first three-dimensional image and the characteristic portion included in the second three-dimensional image. | 07-18-2013 |
20130182221 | APPARATUS FOR INSPECTING THE FUNDUS OF THE EYE - The present invention relates to an apparatus for inspecting the fundus of the eye, comprising:—lighting means configured to project a light beam for illuminating the retina of one eye; and—an optical path comprising one or more lenses configured to optically conjugate the retina with a receiving surface of acquisition means configured to acquire one or more images of the retina; and—a beam splitter device configured to divert a part of the light, which is reflected by the retina and directed towards said acquisition means, towards first photosensitive elements; and—a control unit operatively associated with said first photosensitive elements, said acquisition means and said lighting means, said control unit deactivating said lighting means when the light energy received from said first photosensitive elements overcomes a predefined threshold value; and—first LED devices configured to project light targets onto the retina, which the patient must stare to keep the eye still during the examination. The mentioned first photosensitive elements and first LED devices are arranged together in a single integrated optical unit configured to receive light from the retina and to project light onto the retina through said beam splitter device. | 07-18-2013 |
20130188129 | OPHTHALMOLOGIC APPARATUS, CONTROL METHOD THEREFORE, AND RECORDING MEDIUM STORING METHOD - Provided is an ophthalmologic apparatus including: a first control unit which controls a scanning unit for scanning an eye to be inspected with light emitted from a light source; a memory unit which stores control information for causing the first control unit to control the scanning unit to sequentially perform a first scan and a second scan after the first scan; and a second control unit which decreases a light amount irradiating the eye to be inspected after finishing the first scan and before starting the second scan, which are performed based on the control information. | 07-25-2013 |
20130188130 | OPHTHALMOLOGIC APPARATUS, CONTROL METHOD THEREFORE, AND RECORDING MEDIUM STORING METHOD - Provided is an ophthalmologic apparatus that can realize alignment with high stability when performing continuous automatic alignment. The ophthalmologic apparatus includes: an acquiring portion which acquires specific information of an eye to be inspected; a moving unit which moves the acquiring portion relatively to the eye to be inspected; a first positioning unit which performs positioning between the acquiring portion and the eye to be inspected by controlling the moving unit to move the acquiring portion relatively to the eye to be inspected within a first moving area; and a restriction unit which restricts a moving area of the acquiring portion by the moving unit to a second moving area smaller than the first moving area by controlling the moving unit, when a position relationship between the acquiring portion and the eye to be inspected satisfies a first condition by the first positioning unit. | 07-25-2013 |
20130188131 | SYSTEM AND METHOD FOR CHARACTERISING THE OPTICAL QUALITY AND THE PSEUDO-ACCOMMODATION RANGE OF MULTIFOCAL MEANS USED FOR CORRECTING VISUAL DEFECTS - It is applied to bifocal, multifocal or progressive intraocular lenses or contact lenses, multifocal corneal ablation or other multifocal configurations, comprising means for projecting the image of a point light source on the retina of a patient and an assembly for directly recording the light reflected in said retina after the double passage of the light through the ocular means, integrating a first focus corrector device inserted in the path of the light beam guided towards the retina and a second focus correction device inserted in the light beam reflected from the retina, to be guided towards the mentioned recording means, each of said focus correction devices having independent control means for controlling the operation thereof. | 07-25-2013 |
20130188132 | STANDARDIZED DISPLAY OF OPTICAL COHERENCE TOMOGRAPHY IMAGING DATA - Systems and methods for efficiently displaying large volumes of medical imaging data using pre-defined dynamic displays to illustrate key anatomic features are described. In a preferred embodiment, one or more pulse files comprising en face images of sub sections of the volume are displayed sequentially to the user in a playback loop. These displays can aid in navigation of data for review and future data acquisition. Additional images generated from the data can be displayed next to or overlaid on the pulse files. | 07-25-2013 |
20130188133 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes a planar image acquisition unit configured to acquire a planar image of a subject, a tomographic image acquisition unit configured to acquire a tomographic image indicating a polarization state of the subject, and a display control unit configured to cause a display unit to display the planar image and the tomographic image indicating the polarization state side by side. | 07-25-2013 |
20130188134 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes a tomographic image acquisition unit configured to acquire a polarization-sensitive tomographic image of a subject by using a polarization adjustment member which adjusts a polarization state of a measuring beam, and a display control unit configured to cause a display unit to display the polarization-sensitive tomographic image and a display form indicating a state of the polarization adjustment member. | 07-25-2013 |
20130188135 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes a tomographic image acquisition unit configured to acquire a polarization-sensitive tomographic image of a subject, and an extraction unit configured to extract, from the polarization-sensitive tomographic image of the subject, a region in which a polarization state is scrambled. | 07-25-2013 |
20130188136 | IMAGING APPARATUS - An imaging apparatus includes a planar image acquisition unit configured to acquire a planar image of a subject, a tomographic image acquisition unit configured to acquire a tomographic image of the subject, and a polarization adjustment member disposed in a common optical path of a portion of an optical system in the planar image acquisition unit and a portion of an optical system in the tomographic image acquisition unit and configured to adjust polarization states of a measuring beam for the planar image and a measuring beam for the tomographic image. | 07-25-2013 |
20130188137 | IMAGING APPARATUS AND METHOD FOR CONTROLLING THE SAME - An imaging apparatus includes a polarization adjustment member configured to adjust a polarization state of a measuring beam, a planar image acquisition unit configured to acquire, in a case where the polarization adjustment member is removed from an optical path of the measuring beam, a planar image of a subject, and a tomographic image acquisition unit configured to acquire, in a case where the polarization adjustment member is inserted in the optical path of the measuring beam, a tomographic image of the subject. | 07-25-2013 |
20130188138 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes a fundus image acquisition unit configured to acquire a fundus image of an eye, a tomographic image acquisition unit configured to acquire a polarization-sensitive tomographic image of the eye, and a display control unit configured to cause a display unit to display, superimposed on a position in the fundus image which corresponds to a discontinuous portion in a predetermined layer of the eye shown in the polarization-sensitive tomographic image, a display form indicating the discontinuous portion. | 07-25-2013 |
20130188139 | IMAGING APPARATUS, IMAGING METHOD, AND STORAGE MEDIUM - An imaging apparatus includes a tomographic image acquisition unit configured to acquire a tomographic image indicating a polarization state of a subject based on beams of different polarizations obtained by splitting a beam into which a return beam from the subject irradiated with a measuring beam and a reference beam corresponding to the measuring beam have been combined, and a control unit configured to control an optical path length difference between the return beam and the reference beam according to positional information of a predetermined region in the tomographic image indicating the polarization state of the subject. | 07-25-2013 |
20130188140 | SYSTEMS AND METHODS FOR ENHANCED ACCURACY IN OCT IMAGING OF THE CORNEA - Systems and methods for enhanced accuracy in optical coherence tomography imaging of the cornea are presented, including approaches for more accurate corneal surface modeling, pachymetry maps, keratometric values, and corneal power. These methods involve new scan patterns, an eye tracking mechanism for transverse motion feedback, and advanced motion correction algorithms. In one embodiment the methods comprise acquiring a first sparse set of data, using that data to create a corneal surface model, and then using the model to register a second set of denser data acquisition. This second set of data is used to create a more accurate, motion-corrected model of the cornea, from which pachymetry maps, keratometric values, and corneal power information can be generated. In addition, methods are presented for determining simulated keratometry values from optical coherence tomography data, and for better tracking and registration by using both rotation about three axes and the corneal apex. | 07-25-2013 |
20130188141 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - To ensure display of a region of interest on a fundus image and a tomographic image of an eye to be inspected in a correspondence manner, an apparatus for processing images of an eye to be inspected includes: a unit that acquires a fundus image of an eye to be inspected; a unit that designates an arbitrary point on the fundus image; a unit that acquires a tomographic image of the eye to be inspected; a unit that calculates a point on the tomographic image corresponding to the arbitrary point; and a unit that converts a coordinate system for displaying the tomographic image and the fundus image in association with each other on the basis of positions of the arbitrary point and the corresponding point. | 07-25-2013 |
20130188142 | MEDICAL IMAGING APPARATUS - A medical imaging apparatus includes an imaging unit configured to capture an image of a subject, an imaging sequence registration unit configured to register an imaging sequence, and a display unit configured to display the imaging sequence registered by the imaging sequence registration unit. | 07-25-2013 |
20130194541 | OPTICAL TOMOGRAPHIC APPARATUS AND CONTROL METHOD THEREOF - In order to change a size of an imaging area of a tomographic image of an object to be inspected easily, provided is an optical tomographic apparatus for acquiring a tomographic image of an object to be inspected, the optical tomographic apparatus including a control unit for controlling a measuring light path length changing unit to change an optical path length of measuring light in a case where the size of the imaging area of the tomographic image is changed, and for controlling a movable unit for moving a focus lens for focusing the measuring light to the object to be inspected along an optical path to move the focus lens in association with the change in the optical path length of the measuring light. | 08-01-2013 |
20130194542 | OPTICAL TOMOGRAPHIC APPARATUS AND CONTROL METHOD THEREOF - In order to change a size of an imaging area of a tomographic image of an object to be inspected easily, provided is an optical tomographic apparatus for acquiring a tomographic image of an object to be inspected, the optical tomographic apparatus including a control unit for controlling a measuring light path length changing unit to change an optical path length of measuring light in a case where the size of the imaging area of the tomographic image is changed, and for controlling a reference light path length changing unit to change an optical path length of reference light in association with the change in the optical path length of the measuring light. | 08-01-2013 |
20130194543 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING APPARATUS CONTROL METHOD, OPHTHALMOLOGIC APPARATUS, OPHTHALMOLOGIC APPARATUS CONTROL METHOD, OPHTHALMOLOGIC SYSTEM, AND STORAGE MEDIUM - An image processing apparatus comprises: a fundus image obtaining unit configured to obtain a fundus image of an eye to be examined; a detection unit configured to detect positions of an optic papilla and macular region of the eye to be examined from the fundus image; and an obtaining position determination unit configured to determine, as an obtaining position where a tomographic image of the optic papilla of the eye to be examined is obtained, a position crossing a line passing through the position of the optic papilla and the position of the macular region. | 08-01-2013 |
20130194544 | IMAGE PROCESSING SYSTEM, PROCESSING METHOD, AND STORAGE MEDIUM - An image processing system includes: an obtaining unit configured to obtain a tomographic image of an eye to be examined; an analysis unit configured to execute analysis required to obtain information indicating a degree of curvature of a retina from the tomographic image of the eye to be examined according to an imaging mode upon capturing an image of the eye to be examined; and a display control unit configured to display three-dimensional shape data of a retinal layer generated to obtain the information on a display device. | 08-01-2013 |
20130194545 | OPHTHALMIC APPARATUS, OPHTHALMIC APPARATUS CONTROL METHOD AND STORAGE MEDIUM - An ophthalmic apparatus comprises: an image obtaining unit configured to obtain a fundus image of an eye to be examined; an information obtaining unit configured to obtain, from the fundus image, information about the eye to be examined; a fixation target display unit configured to display a fixation target pattern; and a change unit configured to change, in accordance with the information about the eye to be examined, the fixation target pattern displayed by the fixation target display unit. | 08-01-2013 |
20130194546 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - Although a lamina cribrosa is deformed in glaucoma, in a method in a related art, a thickness of retinal layer or choroid is measured and a deformation of the lamina cribrosa is not detected. When glaucoma is diagnosed, it is desirable to analyze a shape of the lamina cribrosa and present its analysis result at a high visibility. An image processing apparatus is provided that comprises: an image obtaining unit that obtains a tomographic image of a subject's eye; an extracting unit that extracts a lamina cribrosa from the tomographic image; and a display control unit that controls a display means to display a display form showing a shape of the extracted lamina cribrosa. | 08-01-2013 |
20130194547 | Diagnostic, Prescriptive, And Data-Gathering System And Method For Macular Pigment Deficits And Other Eye Disorders - A macular health measurement and storage system comprises a plurality of macular-pigment measurement machine for measuring macular pigment density in humans, a plurality of computers each of which is associated with a corresponding one the macular-pigment measuring machines, and a central host. The plurality of macular-pigment measurement machines include a device for receiving macular pigment data from a patient, at least one data transfer port, and at least one processor that enables the transfer of the macular pigment data from the transfer port. The plurality of computers include a first port coupled to the data transfer port of the corresponding macular-pigment measurement machine for receiving the macular pigment data. Each of the computers includes a second port for transferring patient data. The central host is coupled to the second ports on each of the plurality of computers. The central host includes a storage device for storing the patient data. | 08-01-2013 |
20130201449 | OPTICAL COHERENCE TOMOGRAPHY DEVICE, METHOD, AND SYSTEM - In accordance with one aspect of the present invention, an optical coherence tomography instrument comprises an eyepiece for receiving at least one eye of a user is provided; a light source that outputs light that is directed through the eyepiece into the user's eye; an interferometer configured to produce optical interference using light reflected from the user's eye; an optical detector disposed so as to detect said optical interference; and electronics coupled to the detector. The electronics can be configured to perform a risk assessment analysis based on optical coherence tomography measurements obtained using the interferometer. An output device can be electrically coupled to the electronics, and may be configured to output the risk assessment to the user through the output device. The optical coherence tomography instrument can be self-administered, and the eyepiece can be a monocular system or a binocular system. | 08-08-2013 |
20130201450 | DETECTION AND MEASUREMENT OF TISSUE IMAGES - A system and method of measuring a tissue structure is provided. The method includes obtaining image data of the tissue structure. Also, an anatomical landmark in the image data is identified. A first geometric shape is applied to the image data of the tissue structure based on the anatomical landmark. For example, the geometric shape may have a linear portion, such as a square or diamond. The method also includes applying a second geometric shape to the image data of the tissue structure based on the anatomical landmark. The second geometric shape may be different than the first geometric shape, such as an arc or parabola. The method also includes segmenting a first substructure of the image data from a second substructure of the image data. These substructures may be, for example, a sclera and ciliary body of an eye. | 08-08-2013 |
20130208240 | SEGMENTATION AND ENHANCED VISUALIZATION TECHNIQUES FOR FULL-RANGE FOURIER DOMAIN OPTICAL COHERENCE TOMOGRAPHY - Presented here are new processing techniques for optical coherence tomography (OCT) data that allow for improved visualization and use of full-range OCT images. These techniques minimize the central line artifact and the complex conjugate artifact without requiring additional system hardware or significantly increasing post-processing time. The central line artifact is minimized by normalizing each A-scan to account for ripples at the zero-delay position. The complex conjugate artifact is minimized by segmentation of a layer or layers that cross the zero-delay position, and in some embodiments by further segmentation of other surfaces based on the segmentation of the initial layer or layers. The segmentation information is then used to selectively attenuate the complex conjugate image. It may also be used for other purposes, such as dewarping. | 08-15-2013 |
20130208241 | Methods and Apparatus for Retinal Imaging - In exemplary implementations, this invention comprises apparatus for retinal self-imaging. Visual stimuli help the user self-align his eye with a camera. Bi-ocular coupling induces the test eye to rotate into different positions. As the test eye rotates, a video is captured of different areas of the retina. Computational photography methods process this video into a mosaiced image of a large area of the retina. An LED is pressed against the skin near the eye, to provide indirect, diffuse illumination of the retina. The camera has a wide field of view, and can image part of the retina even when the eye is off-axis (when the eye's pupillary axis and camera's optical axis are not aligned). Alternately, the retina is illuminated directly through the pupil, and different parts of a large lens are used to image different parts of the retina. Alternately, a plenoptic camera is used for retinal imaging. | 08-15-2013 |
20130215383 | OPHTHALMIC INSTRUMENTS, SYSTEMS, PROGRAMS AND METHODS FOR MONITORING EYES - An automated ophthalmic monitoring system for monitoring an eye of a subject is provided. The system includes an eyelid refractor and an ophthalmic imaging device having an imaging sensor or camera. An automated control unit is in communication with the eyelid retractor and the ophthalmic imaging device, wherein the automated control unit controls the operation of the eyelid retractor and the ophthalmic imaging device. | 08-22-2013 |
20130215384 | IMAGING APPARATUS - Provided is an imaging apparatus for photographing an image by an intensity of return light obtained from an eye to be inspected irradiated with measuring light, the imaging apparatus including: a fixation target for the eye to be inspected to fixate, an illuminated position setting unit for setting an illuminated position of the fixation target; and an illuminated position controlling unit for controlling the illuminated position setting unit so as to move the illuminated position of the fixation target for a first observation area to an illuminated position of the fixation target for a second observation area, in which the imaging apparatus calculates a movement distance of the illuminated position of the fixation target on the basis of a diopter scale of the eye to be inspected. | 08-22-2013 |
20130215385 | IMAGING APPARATUS - In order to reduce a measurement range of an aberration of an eye to be inspected, provided is an imaging apparatus, including: a first image acquiring unit for acquiring a first image of the eye based on first return light from the eye irradiated with first measuring light via a first focus unit for focusing the first measuring light on the eye; a second image acquiring, by using an aberration correction unit, unit for acquiring a second image of an area corresponding to a part of the first image of the eye based on second return light from the object to be inspected irradiated with second measuring light via a second focus unit for focusing the second measuring light on the eye; and a focus adjustment unit for adjusting a focus condition of the second focus unit based on a focus condition of the first focus unit. | 08-22-2013 |
20130215386 | IMAGING APPARATUS AND CONTROL METHOD THEREFOR - In order to solve the problem in that, when a fundus is irradiated with multiple beams, a load has been placed on a subject, an imaging apparatus for imaging an object to be inspected based on return light from a first area in the object to be inspected, which is irradiated with first light, including: a determination unit for determining a second area being narrower than the first area in the object to be inspected; and a control unit for restricting the irradiation with the first light in the second area, which is irradiated with second light. | 08-22-2013 |
20130215387 | FUNDUS IMAGING APPARATUS AND METHOD - In order to suppress a load on a subject when a fundus is irradiated with multiple beams, a fundus imaging apparatus for forming an image of a first area in the object, includes: a determination unit for determining a second area other than the first area in the object to be inspected; a detection unit for detecting moving of the object to be inspected on the basis of return light from the second area, which is irradiated with second light; a correction unit for correcting the first area on the basis of the detected moving; and a forming unit for forming an image of the object to be inspected on the basis of the return light from the corrected first area, which is irradiated with the first light. | 08-22-2013 |
20130215388 | IMAGE PROCESSING APPARATUS, DIAGNOSTIC SUPPORT SYSTEM, AND IMAGE PROCESSING METHOD - An image processing apparatus includes a specification unit configured to specify a vascular region based on a movement of a blood cell in a moving image of an ocular portion captured by an ophthalmologic imaging apparatus including an adaptive optics system, and a determination unit configured to determine presence of an abnormality based on the specified vascular region. | 08-22-2013 |
20130215389 | CONTROL APPARATUS, CONTROL METHOD, AND OPHTHALMOLOGIC APPARATUS INCLUDING THE CONTROL APPARATUS - In an ophthalmologic apparatus in which a head part is moved at a speed according to a rotation speed of a rotational part of a joystick, in order to enable a moving amount of the head part to correspond to a rotation amount even when the rotation speed becomes higher, the rotation speed of the joystick is detected at predetermined intervals, and when a current rotation speed (count of an encoder during a predetermined period) is lower than a previous rotation speed, a speed obtained by subtracting a predetermined value from the previous rotation speed is compared to the current rotation speed. Then, a higher speed is set as the current rotation speed, and the head part is moved at the speed corresponding to the current rotation speed. | 08-22-2013 |
20130222762 | METHOD AND APPARATUS FOR MEASURING MOTION OF A SUBJECT USING A SERIES OF PARTIAL IMAGES FROM AN IMAGING SYSTEM - A line scan imager is used to determine the motion of a subject. Each line of image data from the line scan imager is compared with a reference image. The location of a matching line in the reference image reveals the displacement of the subject. The current subject displacement can be determined based on each line of image data. The resulting displacement information can be used to correctly place other optical beams on the subject. The method can be applied to tracking the human eye to facilitate measurement, imaging, or treatment with a beam of optical radiation. | 08-29-2013 |
20130222763 | FUNDUS CAMERA WITH STRIP-SHAPED PUPIL DIVISION, AND METHOD FOR RECORDING ARTIFACT-FREE, HIGH-RESOLUTION FUNDUS IMAGES - A fundus camera for the recording of high-resolution colour images of the fundus of non-dark-adapted eyes, and without the use of a mydriatic. The fundus camera has a strip-shaped pupil division, and includes a coherent or incoherent illumination source with illumination optics, a deflection mirror and an ophthalmoscope lens for illuminating the eye, detection optics and a detector for detecting the light reflected by the eye, and a control and evaluation unit. The deflection mirror has a strip shape, and the spatially resolving detector can be activated and read out in sectors. The control and evaluation unit connects the data read out in sectors in the form of a bright image from the detector and produce a resulting fundus image. The fundus camera records images of the fundus when the eyes are not dark-adapted for this purpose and no mydriatic has been used. | 08-29-2013 |
20130229620 | Enhanced Sensitivity Line Field Detection - A retinal imaging device includes an optical system configured to (i) scan a portion of the retina of the eye with a line of light, (ii) descan reflected light from the scanned portion of the retina, and (iii) provide output light in a line focus configuration. The device includes a detection device including a linear array of asymmetric pixels having at least a 2:1 ratio of length to width, a detection device with multiple adjacent linear arrays, and/or a detection device using a time delay and integration (TDI) architecture. | 09-05-2013 |
20130229621 | METHOD FOR FINDING THE LATERAL POSITION OF THE FOVEA IN AN SDOCT IMAGE VOLUME - Embodiments of the present invention provide methods for finding the lateral position of the fovea in an OCT image volume. In one instance, a cost function is developed whose minimum is located at or near the foveal center. This cost function includes one or more measures of retinal layer thickness and/or measures of distance from blood vessels or a priori locations. | 09-05-2013 |
20130229622 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS AND OPHTHALMOLOGIC PHOTOGRAPHING METHOD - An ophthalmologic photographing apparatus includes: a photographing optical system that includes a scanning unit for scanning an examinee's eye with measurement light to obtain a tomographic image of the examinee's eye; an observing optical system that includes a light-receiving device for receiving reflected light from the examinee's eye to obtain a moving image of a front image of the examinee's eye based on a light-receiving signal from the light-receiving device; a display controller for displaying the front image acquired by the observing optical system in a still state on a monitor as well as enabling setting of a capturing position of the tomographic image, the setting using the front image; and a drive controller for controlling the scanning unit to acquire the tomographic image in accordance with the capturing position. | 09-05-2013 |
20130229623 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS - An ophthalmologic photographing apparatus includes: a photographing optical system, including a scanning unit for scanning an examinee's eye with measurement light, for obtaining a tomographic image of the examinee's eye; an observing optical system, including a light-receiving device for receiving reflected light from the examinee's eye, for obtaining a front image of the examinee's eye based on a light receiving signal from the light-receiving device; a condition setting unit for setting conditions for capturing a tomographic image; and a tracking controller for performing tracking that controls the scanning unit in a manner of scanning a predetermined photographing portion of the examinee's eye based on a front image acquired by the observing optical system as well as performing tracking related to substantially the same photographing portion even in a case where the photographing condition is changed by the condition setting unit. | 09-05-2013 |
20130229624 | BACKGROUND REDUCTION APPARATUSES AND METHODS OF OCULAR SURFACE INTERFEROMETRY (OSI) EMPLOYING POLARIZATION FOR IMAGING, PROCESSING, AND/OR DISPLAYING AN OCULAR TEAR FILM - Background reduction apparatuses and methods of Ocular surface interferometry (OSI) employing polarization are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT) and can be used to evaluate and potentially diagnosis dry eye syndrome (DES). In certain disclosed embodiments, a multi-wavelength light source can be controlled to illuminate the ocular tear film. Light emitted from the multi-wavelength light source undergoes optical wave interference interactions in the tear film. An imaging device can be focused on the lipid layer of the tear film to capture optical wave interference interactions of specularly reflected light from the tear film combined with a background signal(s) in at least one image. The at least one image can be processed and analyzed to measure a tear film layer thickness (TFLT), including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). | 09-05-2013 |
20130235341 | System and Method for Controlled Reduction of Opacities in an Eye - A methodology is provided for correcting the placement of a laser beam's focal point. Specifically, this correction is done to compensate for displacements of the focal point that may be caused when implant material (e.g. an Intraocular Lens (IOL)) is positioned on the optical path of the laser beam. The methodology of the present invention then determines a deviation of the laser beam's refracted target position (uncompensated) from its intended target position. A calculation of the deviation includes considerations of the laser beam's wavelength and refractive/diffractive characteristics introduced by the implant material. This deviation is then added to the refracted target position to make the refracted target position coincide with the intended target position of the focal point. The laser beam will then focus to its intended target position. | 09-12-2013 |
20130235342 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - In an image processing apparatus that irradiates an object to be inspected with measuring light and synthesizing a plurality of tomographic images acquired on the basis of reflected light to form a new tomographic image in order to reduce speckles in the image and enhance the image quality of the resultant composed image in imaging using optical coherence tomography, the image processing apparatus is provided with an image acquiring unit that acquires a plurality of tomographic images of an object to be inspected and a selection unit that selects tomographic images to be composed from among the plurality of tomographic images on the basis of similarity information about the plurality of tomographic images. | 09-12-2013 |
20130235343 | ENHANCED BIOMETRY USING OPTICAL COHERENCE TOMOGRAPHY - An imaging method is disclosed. An imaging method according to some embodiments can include obtaining a plurality of measurements of an eye for at least one location by scanning optical radiation across the eye; determining a preferred measurement axis from the plurality of measurements; and processing the plurality of measurements to obtain information of the eye. | 09-12-2013 |
20130235344 | Optical Coherence Tomography (OCT) Imaging Systems for Use in Ophthalmic Applications - Optical coherence tomography (OCT) imaging systems for imaging an eye are provided including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path, the reference arm path having an associated reference arm path length. A sample having an associated sample arm path coupled to the source arm and reference arm paths is provided. A reference arm path length adjustment module is coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye length of the subject. Related methods and computer program products are also provided. | 09-12-2013 |
20130235345 | FUNDUS IMAGING APPARATUS - Provided is a fundus imaging apparatus which achieves reduction of a load on an examiner by facilitating understanding of an operation of switching from a fundus imaging mode to an anterior ocular segment imaging mode, comprising: an imaging unit for taking an image of an eye to be inspected; a focusing unit for achieving a substantially conjugate relationship between the eye to be inspected and the imaging unit; a diopter adjustment unit for adjusting a diopter when the eye to be inspected is myopic or hyperopic; an imaging selecting unit capable of selecting the fundus imaging mode or the anterior ocular segment imaging mode; a diopter adjustment switching unit for switching the diopter adjustment unit in accordance with the selected imaging mode; and a drive unit for driving the focusing unit in accordance with the selected imaging mode. | 09-12-2013 |
20130242258 | FUNDUS PHOTOGRAPHING APPARATUS - A fundus photographing apparatus is provided with: a detector that detects an interference state between light reflected from the fundus and reference light; an optical scanner that scans the fundus of an examinee's eye with the measurement light; a focus detection unit that detects a focus position with respect to the fundus of the examinee's eye based on an output signal from a light receiving element that receives the light reflected from the fundus; a focus adjustment unit that corrects the diopter scale with respect to the examinee fundus by moving a first optical member to the focus position; a second optical member disposed in the optical path of the measurement light or the reference light; and an optical path length adjustment unit that adjusts an optical path length difference between the measurement light and the reference light. | 09-19-2013 |
20130242259 | METHOD AND DEVICE FOR RECORDING AND DISPLAYING AN OCT WHOLE-EYE SCAN - The eye is illuminated by a variable laser light source with a measurement range corresponding to the eye length, wherein the focus of the laser beam in the eye can be shifted laterally and/or axially by an adjustment mechanism, and the light fractions back-scattered from the sample are captured via an interferometer by a data acquisition unit and forwarded to a data processing unit. In the data processing unit, an OCT whole-eye scan is combined with at least one or several further overlapping tomographic part-eye or whole-eye scans. Reference information is used to register the first whole-eye scan with the further part-eye or whole-eye scans, and the combined whole-eye scan is evaluated and/or displayed on a user surface. | 09-19-2013 |
20130242260 | OPHTHALMOLOGIC IMAGING APPARATUS AND OPHTHALMOLOGIC IMAGING METHOD - An ophthalmologic imaging apparatus includes an observation light source configured to generate infrared light for illuminating a subject's eye via an illumination optical system, an imaging unit configured to receive light returned from the subject's eye via an imaging optical system, and an electronic shutter control unit configured to refresh charge generated caused by light received by the imaging unit in response to turning off of the observation light source. | 09-19-2013 |
20130242261 | SCANNING LASER OPHTHALMOSCOPE - Provided is a scanning laser ophthalmoscope capable of accurately superposing multiple photographed images. The scanning laser ophthalmoscope comprises an image generating unit that generates first images based on the light reflected from first laser light and second images based on the light reflected from second laser light. An associating unit associates the first images and the second images based on the first laser light and the second laser light parallelly scanned by the scanning unit. A displacement calculating unit calculates displacements between images regarding multiple first images. The position matching unit matches the positions of multiple second images based on the processing results from the associating unit and the displacements. The superposing unit superposes the multiple second images that have undergone the position matching. The display unit displays an image obtained by superposing the multiple second images. | 09-19-2013 |
20130250236 | GAZE-FIXATION AIDING AND IMAGE FOCUSING DEVICE - A gaze-fixation aiding and image focusing device for a fundus camera includes an illuminating system for projecting an examination light to illuminate an examinee's fundus; an aging system for receiving a fundus image and light reflected from the examinee's eye and forming images of the reflected light and the fundus on a display; a focusing device having a split image screen located in the illuminating system to work with an adjusting means located in the imaging system for split image focusing; and a gaze fixation device having a gaze fixation surface formed in the illuminating system and a plurality of fixation points provided on the gaze fixation surface to form a contrast with the examination light. With these arrangements, the fundus camera can have largely simplified optical path structure, and the fixation points are independently controllable to light for the examinee to gaze into particular directions. | 09-26-2013 |
20130250237 | OPHTHALMIC PHOTOGRAPHING APPARATUS - A method for obtaining a tomographic image of a fundus by optical coherence tomography includes the steps of setting a line, based on which the fundus tomographic image is to be obtained, on a first front image of the fundus, the first front image being a still image, establishing a positional correspondence between a second front image of the fundus and the first front image by matching the first and second front images, specifying a line on the second front image based on positional information on the line set on the first front image, and the established positional correspondence, and obtaining the fundus tomographic image that corresponds to the lines on the first and second front images by scanning measurement light with the use of an optical scanner provided to an interference optical system. | 09-26-2013 |
20130250238 | IMAGE SENSING APPARATUS USING OPTICAL COHERENCE TOMOGRAPHY AND CONTROL METHOD THEREFOR - Tomographic images of a plurality of planes at a disease site of a fundus are taken exactly within a short period of time, and the tomographic images are respectively displayed so that the positional relationship thereof becomes clear. A low coherent optical tomographic image sensing apparatus for imaging a fundus includes a sensing unit which takes tomographic images of a plurality of planes intersecting each other in time division, a display unit which displays the taken tomographic images at separate sites on the identical screen, and a position indication unit which displays, in each tomographic image, an intersection position of the tomographic image and another tomographic image intersecting one another. | 09-26-2013 |
20130250239 | Lens Capsule Size Estimation - Methods of estimating the size of an ocular lens capsule. | 09-26-2013 |
20130250240 | ADAPTIVE OPTICS OPHTHALMIC IMAGER WITHOUT WAVEFRONT SENSOR OR WAVEFRONT CORRECTOR - The invention utilizes a digital holographic adaptive optics (DHAO) system to replace hardware components in a conventional AO system with numerical processing for wavefront measurement and compensation of aberration by the principles of digital holography. Wavefront sensing and correction by DHAO have almost the full resolution of a CCD camera. The approach is inherently faster than conventional AO because it does not involve feedback and iteration, and the dynamic range of deformation measurement is essentially unlimited. The new aberration correction system can be incorporated into a conventional fundus camera with minor modification and achieve high resolution imaging of a retinal cone mosaic. It can generate profiles of the retinal vasculature and measure blood flow. It can also provide real-time profiles of ocular aberration during refractive (Lasik) surgery and generate three-dimensional maps of intraocular debris. | 09-26-2013 |
20130250241 | VARIABLE RESOLUTION OPTICAL COHERENCE TOMOGRAPHY SCANNER AND METHOD FOR USING SAME - The invention relates generally to optical tomographic imaging and in particular to systems and methods for adapting the resolution of imaging. One embodiment of the present invention is an apparatus for optical coherence tomography imaging, characterized by its ability to vary the axial resolution and scanning speed during imaging. | 09-26-2013 |
20130258280 | ANTERIOR OCULAR SEGMENT TOMOGRAPHIC IMAGE ANALYSIS METHOD AND ANTERIOR OCULAR SEGMENT TOMOGRAPHIC IMAGE ANALYSIS APPARATUS - To determine an opening degree of a chamber angle with higher accuracy compared to that of a conventional technology, provided is an anterior ocular segment tomographic image analysis method including: a first determination step of determining an approximated line that approximates a shape of an anterior surface of an iris along the anterior surface of the iris in an anterior ocular segment tomographic image; a second determination step of determining an approximated line extended part obtained by extending the approximated line until the approximated line crosses a baseline in contact with an inner surface of a cornea and an inner surface of a sclera of an anterior ocular segment in the anterior ocular segment tomographic image; and a calculation step of calculating an opening degree of an anterior chamber angle of the anterior ocular segment through use of the approximated line and the approximated line extended part. | 10-03-2013 |
20130258281 | IMAGING ADAPTOR FOR CAMERA - An adaptor adapts an SLR camera for use as an ophthalmic viewing and imaging device. The adaptor is mounted to the camera between the camera body and the camera lens, and includes optical components arranged to direct illumination of the interior of the eye. The adaptor includes a first light source configured to provide a maximum level of illumination that is sufficient to identify structures of interest within an interior of an eye. The adaptor directs light from a second, external source to provide a level of illumination sufficient to obtain a fundus image. Optical components within the adaptor define a first optical pathway for directing light from the first light source to the lens, a second optical pathway for directing light from the second light source to the camera lens, and a third optical pathway for directing light from the camera lens through the adaptor to the camera. | 10-03-2013 |
20130258282 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes an obtaining unit configured to obtain an anterior segment image of a subject's eye, a tomographic image obtaining unit configured to obtain a tomographic image of an anterior segment of the subject's eye, a calculation unit configured to calculate a thickness of a cornea based on the tomographic image, and a display control unit configured to cause a display unit to display the anterior segment image, a closed curve on the anterior segment image, and a smallest thickness of the cornea among thicknesses of the cornea in a portion where the closed curve lies. | 10-03-2013 |
20130258283 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes an ophthalmologic apparatus configured to acquire unique information of a subject's eye, an acquisition unit configured to acquire a value indicating brightness of surroundings of the ophthalmologic apparatus, and a recording unit configured to record in a storing unit a value indicating brightness acquired by the acquisition unit, associated with a tomographic image. | 10-03-2013 |
20130258284 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes an irradiation optical system configured to guide light emitted from a light source to the subject's eye, a control unit configured to sweep a wavelength of light emitted from the light source, an imaging optical system configured to guide to an imaging unit a return beam from the subject's eye of light swept by the control unit, a tomographic image acquisition unit configured to acquire a tomographic image of the subject's eye based on an output from the imaging unit, a fundus image acquisition unit configured to acquire a fundus image of the subject's eye, and a display control unit configured to display the fundus image on a first area in a display unit and display the tomographic image on a second display area which is positioned above or below the first area and is wider in a horizontal direction as compared to the first area. | 10-03-2013 |
20130258285 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes an obtaining unit configured to obtain a tomographic image including an optic disc portion and a macula portion of a fundus of a subject's eye, an analysis unit configured to analyze the optic disc portion and the macula portion of the fundus in the tomographic image, and a display control unit configured to display side-by-side, on a display unit, a display pattern indicating a result of analyzing the optic disc portion, and a display pattern indicating a result of analyzing the macula portion. | 10-03-2013 |
20130265542 | METHOD AND SYSTEM FOR REMOVAL AND REPLACEMENT OF LENS MATERIAL FROM THE LENS OF AN EYE - There is provided a system, apparatus and methods for developing laser systems that can create a precise predetermined capsulotomy. The systems, apparatus and methods further provide laser systems that reduce the patient-to-patient variability and doctor-to-doctor variability associated with hand held apparatus for performing capsulorhexis and capsulotomies. There is further provided a precise predetermined shot pattern and shaped capsulotomy that is based at least in part on the shape of an IOL and in particular an accommodating IOL. | 10-10-2013 |
20130265543 | IMAGE PROCESSING APPARATUS AND METHOD THEREOF - An image processing apparatus acquires a tomographic image of an eye to be examined. The image processing apparatus quantifies a distortion in a region determined from the tomographic image. The region includes a photoreceptor layer or a retinal pigment epithelium. | 10-10-2013 |
20130265544 | INSTRUMENT FOR RAPID MEASUREMENT OF THE OPTICAL PROPERTIES OF THE EYE IN THE ENTIRE FIELD OF VISION - An instrument measuring optical properties of an eye in an entire field of vision, including refraction and aberrations, including: a frame mounted on an ophthalmologic table that can be oriented in three perpendicular directions X, Y, Z; a support surface for a head of the subject; a hot mirror; a long mirror; an illumination sub-assembly including a fiber optic head; a lens; a diaphragm; a beam splitter; and a measurement sub-assembly with two lens and two mirrors; a camera including a matrix of micro-lenses on the inlet of camera, the camera being placed on the focal plane of the micro-lenses; the frame including a motor, a shaft of which rotates in the Y direction, to which an arm is attached that can rotate on the shaft; components of the illumination sub-assembly, components of a measurement sub-assembly, and the camera with the matrix of micro-lenses being mounted on the arm. | 10-10-2013 |
20130265545 | Surgical Microscopes Using Optical Coherence Tomography and Related Systems and Methods - Some embodiments of the present inventive concept provide optical coherence tomography (OCT) systems for integration with a microscope. The OCT system includes a sample arm coupled to the imaging path of a microscope. The sample arm includes an input beam zoom assembly including at least two movable lenses configured to provide shape control for an OCT signal beam; a scan assembly including at least one scanning mirror and configured for telecentric scanning of the OCT signal beam; and a beam expander configured to set the OCT signal beam diameter incident on the microscope objective. The shape control includes separable controls for numerical aperture and focal position of the imaged OCT beam. | 10-10-2013 |
20130265546 | IMAGING METHOD AND IMAGING APPARATUS - To promptly take a high quality image of an object to be inspected, provided is an imaging method for taking an image of the object to be inspected by irradiating the object to be inspected with measuring light, in which an aberration generated in the object to be inspected is corrected by an aberration correction unit. The method includes the repeatedly performed steps of measuring the aberration generated in the object to be inspected, correcting the aberration by controlling the aberration correction unit in accordance with the measured aberration, and storing, in a storage unit, a control state of the aberration correction unit in association with the measured aberration. The aberration correction unit is controlled in a predetermined control state stored in the storage unit. | 10-10-2013 |
20130271728 | MULTIPLE-LENS RETINAL IMAGING DEVICE AND METHODS FOR USING DEVICE TO IDENTIFY, DOCUMENT, AND DIAGNOSE EYE DISEASE | 10-17-2013 |
20130271729 | MULTIPLE-VIEW COMPOSITE OPHTHALMIC IRIDOCORNEAL ANGLE IMAGING SYSTEM | 10-17-2013 |
20130278897 | OPTICAL TOMOGRAPHIC IMAGE GENERATING APPARATUS AND OPTICAL TOMOGRAPHIC IMAGE GENERATING METHOD - The present invention relates to an optical tomographic image generating method including: obtaining signals for a plurality of frames; obtaining respective complex number data by performing Fourier transformation of the signals for the plurality of frames; synthesizing the plurality of frames using the respective complex number data; generating a tomographic image based on the synthesized data. This configuration enables easy enhancement of the image quality in an optical coherence tomographic imaging apparatus. | 10-24-2013 |
20130286346 | FUNDUS EXAMINATION DEVICE CAPABLE OF AIDING IN GAZE FIXATION AND IMAGE FOCUSING - A fundus examination device aiding in gaze fixation and image focusing includes a light projecting device for projecting an examination light to illuminate an examinee's fundus; an illuminating system for transmitting the examination light to the examinee's eye and receiving a fundus image; an imaging system for showing the fundus image; and a focusing and gaze-fixation device located in the illuminating system and including a focus mask formed in a focusing zone, on which the examinee's eye focuses. The focus mask includes a split image screen surrounded by a light-penetrable structure, and gaze fixation devices for forming gaze-fixation images at examinee's eye focusing positions within the focusing zone, such that the split image screen and the gaze-fixation images are located at different focal positions corresponding to the examinee's eye curvature. Therefore, when a split image focusing is completed, the gaze-fixation images are also located at clearly recognizable focal positions. | 10-31-2013 |
20130286347 | EYE EXAMINATION APPARATUS WITH DIGITAL IMAGE OUTPUT - A device for stereoscopic examination of an eye, in particular a slit-lamp microscope, comprises, according to a first aspect of the invention, a lens for generating two images of the eye, wherein the device comprises at least one image sensor for electronic recording of the two images. According to a second aspect of the invention, the device for examination of an eye, in particular the slit-lamp microscope, comprises a lens for generating one image, wherein it comprises an image sensor for electronic recording of one image, and a viewing unit with an image-reproducing unit for presenting the image, and an eyepiece for viewing the image. | 10-31-2013 |
20130286348 | OPTICAL COHERENCE TOMOGRAPHY APPARATUS, CONTROL METHOD, AND PROGRAM - Provided is an optical coherence tomography apparatus for obtaining a tomographic image from an interference light between a reference light and a measurement light having passed through an object. The OCT apparatus includes: a detection unit for detecting the presence/absence of an anterior eye imaging attachment member of the optical coherence tomography apparatus; a storage unit for storing information about the presence/absence of the anterior eye imaging attachment member obtained by the detection unit when the object is imaged; and a control unit for restricting capturing of the tomographic image when the object is imaged again based on the information about the presence of the anterior eye imaging attachment member stored in the storage unit and when the detachment of the anterior eye imaging attachment member is detected by the detection unit. | 10-31-2013 |
20130286349 | OPHTHALMIC IMAGING APPARATUS AND CONTROL METHOD THEREOF - An ophthalmic imaging apparatus divides a frame image obtained by capturing a moving image into a plurality of regions grouping pixels, and acquires photometric values corresponding the plurality of the regions. Further, the ophthalmic imaging apparatus determines acknowledgement or dis-acknowledgement of capturing a still image based on temporal variation of the acquired photometric values or distribution of the acquired photometric values on a fundus image. The ophthalmic imaging apparatus inhibits to execute a still image capturing of the fundus if the dis-acknowledgement of capturing is determined. | 10-31-2013 |
20130293838 | OPTICAL COHERENCE TOMOGRAPHY APPARATUS, CONTROL METHOD, AND COMPUTER-READABLE STORAGE MEDIUM - Provided is an optical coherence tomography apparatus for obtaining a tomographic image from an interference light between a reference light and a measurement light having passed through an object. The optical coherence tomography apparatus includes: a storage unit for storing information of a display mode of an imaging screen when the object is imaged; and a control unit for displaying an imaging screen of a display mode, based on the information stored in the imaging, as an initial screen, when the object is imaged after storage in the storage unit. | 11-07-2013 |
20130293839 | OPHTHALMOLOGY APPARATUS - An ophthalmology apparatus may be provided with an input device, a processor, and an output device. The input device may be configured to input a corneal endothelial cell image to the processor. The corneal endothelial cell image can be obtained by photographing a corneal endothelial cell. The processor may be configured to extract a dark area from the corneal endothelial cell image input by the input device, and to analyze the extracted dark area. The output device may output a result of the analysis by the processor. | 11-07-2013 |
20130293840 | INEXPENSIVE DEVICE AND METHOD FOR CONNECTING A CAMERA TO A SCOPE FOR PHOTOGRAPHING SCOPED OBJECTS - A device and method for connecting a camera to a scoping apparatus for viewing and taking photos of an eye-ball or other object imaged by the scoping apparatus. A case receives a compact high-resolution camera, and an attachment is connected to the case. The attachment is detachably connected to an eye-piece of the scoping apparatus in a manner to allow passage of an image from the scoping apparatus through the device to the camera for viewing and taking of photos thereof. A sleeve portion of the attachment and the eye-piece have generally the same diameter to allow the attachment sleeve to be fitted over the eye-piece. When the attachment sleeve and eye-piece have different diameters, an adapter having a generally cylindrical shape and a thickness equal generally to the difference in thicknesses is received on the eye-piece and the attachment sleeve received on the adapter to couple the attachment to the eye-piece. | 11-07-2013 |
20130293841 | CORNEAL CONFOCAL MICROSCOPE - A corneal confocal microscope characterized by a particular illumination system. | 11-07-2013 |
20130293842 | OPTICAL PHANTOMS FOR USE WITH OCULAR SURFACE INTERFEROMETRY (OSI) DEVICES AND SYSTEMS CONFIGURED TO MEASURE TEAR FILM LAYER THICKNESS(ES), AND RELATED USE FOR CALIBRATION - Embodiments of the detailed description include optical phantoms for use with ocular surface interferometery (OSI) devices and systems configured to measure tear film layer thickness(es), and related use for calibration. The ocular surface interferometry (OSI) devices, systems, and methods can be used for imaging an ocular tear film and/or measuring a tear film layer thickness (TFLT) in a patient's ocular tear film. The OSI devices, systems, and methods can be used to measure the thickness of the lipid layer component (LLT) and/or the aqueous layer component (ALT) of the ocular tear film. “TFLT” as used herein includes LLT, ALT, or both LLT and ALT. “Measuring TFLT” as used herein includes measuring LLT, ALT, or both LLT and ALT. Imaging the ocular tear film and measuring TFLT can be used in the diagnosis of a patient's tear film, including but not limited to lipid layer and aqueous layer deficiencies. | 11-07-2013 |
20130293843 | SYSTEMS AND METHODS FOR WIDEFIELD MAPPING OF THE RETINA - Systems and methods for constructing a widefield image of the retina from a plurality of retinal images. In one aspect, the disclosure concerns constructing a widefield image of the retina from a plurality of retinal images, comprising a base image and a plurality of peripheral images. These techniques enable medical observations of retinal phenomena in patients, such retinal vein occlusion, artery occlusion, retinal detachments, intraocular inflammation, ocular tumors, and the like, that were difficult to detect and impossible to quantify under prior art approaches. | 11-07-2013 |
20130301000 | SYSTEMS AND METHODS FOR FASTER OPTICAL COHERENCE TOMOGRAPHY ACQUISITION AND PROCESSING - Systems and methods for faster acquisition and processing of OCT image data are presented. In one embodiment of the present invention, an OCT system is operated in two different acquisition modes of different axial resolutions to allow for efficient collection of OCT Angiography data while also collecting high resolution OCT data. In another embodiment, a reduced subset of a collected data set is used for OCT Angiography data analysis. In another embodiment, a sweep of a swept-source laser is split into different spectral components covering different transverse locations on the sample. A further aspect includes the ability to process all or a portion of collected OCT data with one motion contrast technique before or while a second set is processed using a different motion contrast technique. | 11-14-2013 |
20130301001 | Multimodality correlation of optical coherence tomography using secondary reference images - Reference images from one or more OCT scanners are correlated with associated OCT scan data, which is in turn registered and correlated to a wide field image so as to present the OCT scan data registered and aligned to the correct location on the wide field image so as to permit displaying OCT scan data taken at different times or on different machines on a single screen all registered to the wide field image. | 11-14-2013 |
20130301002 | OPTICAL IMAGING SYSTEM - An optical imaging system ( | 11-14-2013 |
20130301003 | EYE EXAMINATION SYSTEM - An eye examination system including a patient display visible by the patient during examination and an image capturing device arranged to take an image of the patient's eye during examination, the patient display being arranged to receive and display in real time the image for the patient to view during examination. | 11-14-2013 |
20130301004 | RETINAL FUNDUS SURVEILLANCE METHOD AND APPARATUS - A method and apparatus for quantitative imaging of the retinal fundus. The method for retinal health assessment comprises imaging the retinal fundus of a patient's eye at different wavelengths within a spectral range and determining spectral reflectivity of the retina for each pixel within a field of view (FOV). The retinal health is assessed based on the spectral reflectivity of the retina. The metabolic and anatomical activity of the eye is monitored to detect, at the earliest stage, activity that could lead to the onset of blinding eye diseases such as macular degeneration, diabetic retinopathy, glaucoma, cataracts, etc. | 11-14-2013 |
20130301005 | FUNDUS CAMERA AND CONTROL METHOD FOR THE FUNDUS CAMERA - An apparatus including an illumination unit for illuminating an eye to be inspected with light from an observation light source or light from a photographing light source; an photographing unit for guiding reflected light from the eye to an photographing element, to record an image thereof; a calculation unit for calculating an appropriate observation or photographing light intensity based on an illumination light intensity of the illumination unit and an image signal of the photographing element; an automatic light intensity adjustment unit for causing one of the observation and photographing light sources to emit light at the calculated light intensity; and a control unit for controlling the adjustment unit according to a selected one of a mode of acquiring the fundus image and a mode of acquiring the anterior ocular image. | 11-14-2013 |
20130301006 | DUAL FOCUSING OPTICAL COHERENCE IMAGING SYSTEM - The present invention relates to a dual focusing optical coherence imaging system. The dual focusing optical coherence imaging system includes: a light source unit for generating broadband light; a main optical distributor for distributing the light generated from the light source to allow the light to be propagated; an interference unit including first and second interference parts for forming interference signals with respect to different focused areas of an object to be detected using the light distributed from the optical distributor, and a common sample arm commonly connected to the first and second interference parts; an optical switch connected to the first and second interference parts to select at least one of the interference signals transmitted from the first and second interference parts; and a detection unit for converting the interference signal selected by the optical switch according to a preset mode into an electrical signal. | 11-14-2013 |
20130308095 | APPARATUSES AND METHODS OF OCULAR SURFACE INTERFEROMETRY (OSI) EMPLOYING POLARIZATION AND SUBTRACTION FOR IMAGING, PROCESSING, AND/OR DISPLAYING AN OCULAR TEAR FILM - Apparatuses and methods employing ocular surface interferometry (OSI) employing polarization and subtraction for imaging, processing, and/or displaying an ocular tear film are disclosed. The apparatuses and methods can be employed for measuring tear film layer thickness (TFLT) of the ocular tear film, which includes lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). An imaging device is focused on the lipid layer of the tear film to capture optical wave interference interactions of specularly reflected light from the tear film combined with a background signal(s) in a first image. The imaging device is focused on the lipid layer of the tear film to capture a second image containing background signal(s) in the first image. The second image can be subtracted from the first image to reduce and/or eliminate background signal(s) in the first image to produce a resulting image that can be analyzed to measure tear film layer thickness (TFLT). | 11-21-2013 |
20130308096 | METHOD AND DEVICE FOR THE SEQUENTIAL RECORDING OF INTERFEROMETRIC DEEP SECTIONAL IMAGES AT DIFFERENT DEPTHS, IN PARTICULAR FOR ANALYSIS OF THE EYE - A method and apparatus including an interferometer is provided for sequentially recording interferometric sectional images at different depths, in particular for analyzing an eye. By use of an interferometer, which includes an optical reference path and an optical sample path, a sample beam scans a measuring region of a sample, in particular of an eye, so as to generate a deep sectional image. The optical and geometric paths in a sample arm and/or reference arm of the interferometer can be switched quickly between two or more positions. The path length of the sample beam and/or of the reference beam is changed by way of a path length switching unit, deep sectional images are generated at least at two different depths of the sample, and the change of the path length in the switching unit takes place by deflection of the beam paths to different geometric paths. | 11-21-2013 |
20130308097 | OPTIMIZED DEVICE FOR SWEPT SOURCE OPTICAL COHERENCE DOMAIN REFLECTOMETRY AND TOMOGRAPHY - Optimized device for swept source optical coherence domain reflectometry and tomography. In the coherence-optical device, light, with the aid of an interferometer, is used for distance-measuring and imaging purposes on reflecting and scattering areas of the human eye. The optimized device according to the invention consists of includes a tunable light source, matched to the sought-after measurement region ZOCT, with a resonator length LR, an interferometric measurement arrangement, a data capturing unit for capturing the light portions scattered back from the sample and a data processing unit. Here the resonator length LR of the tunable light source is matched not only to the sought-after measurement region ZOCT, but also to the entire interferometric measurement arrangement such that disturbance points present in the interferometric measurement arrangement cannot create disturbance signals in the sought-after measurement region ZOCT. | 11-21-2013 |
20130308098 | METHOD AND DEVICE FOR HIGH-RESOLUTION RETINAL IMAGING - The invention relates to a high-resolution retinal imaging method and device notably comprising an emission source (LSr) for emitting a light beam for the illumination of the retina of an eye ( | 11-21-2013 |
20130321764 | SYSTEMS AND METHODS FOR IMAGING THE FUNDUS OF THE EYE - Methods and systems for imaging the fundus of the eye are disclosed, in which the fundus is illuminated through a mask which blocks light from reaching one or more masked regions within a peripheral area surrounding a target area of interest, such as the macular region. An image is obtained of both the target area and the peripheral area. A scattered light value is derived from the image intensity within the masked regions, and this is used to compensate and adjust the measured intensity of light within the target area. When employed in the measurement of macular pigment optical degeneration, an improved measurement is obtained in which the specific image(s) used for measurement have a specifically calculated correction factor applied to compensate for light scatter, rather than relying on population-based average scattering values. | 12-05-2013 |
20130321765 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes an aberration measurement unit configured to measure aberration caused by a subject's eye, a correction unit configured to correct aberration of return light from the subject's eye of measurement light applied to the subject's eye caused by the subject's eye based on the aberration measured by the aberration measurement unit, a storage unit configured to store a plurality of combinations of frame rates for obtaining an image of the subject's eye with a number of pixels of the obtained image according to values of the frame rates, and an obtaining unit configured to obtain the image based on the frame rate and the number of pixels in one combination among the plurality of combinations using aberration-corrected return light from the subject's eye. | 12-05-2013 |
20130321766 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes an aberration measurement unit configured to measure aberration caused by a subject's eye by using a return beam of a first measuring beam from the subject's eye, a correction unit configured to correct aberration of a return beam of a second measuring beam from the subject's eye caused by the subject's eye based on the aberration measured by the aberration measurement unit, a first acquisition unit configured to obtain a first image of the subject's eye by using the aberration-corrected return beam of the second measuring beam from the subject's eye, and a control unit configured to enter one of the first measuring beam and the second measuring beam into the subject's eye while limiting entry of the other measuring beams into the subject's eye. | 12-05-2013 |
20130321767 | IMAGING APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM - An imaging apparatus includes a measuring light focusing unit configured to focus measuring light for measuring aberration of an object on the object, an aberration correction unit configured to change a state based on the aberration measured with the measuring light, an imaging light focusing unit configured to focus imaging light for capturing an image of the object on the object, an imaging unit configured to capture an image of the object with the imaging light having passed through the aberration correction unit and the imaging light focusing unit, and a control unit configured to interlockingly control states of the measuring light focusing unit and the imaging light focusing unit. | 12-05-2013 |
20130321768 | OPHTHALMIC DEVICE - There is provided an ophthalmic device that includes a plurality of light sources including at least a light source for obtaining a return light of which aberration has been corrected with a correction unit from an eye under examination; and
| 12-05-2013 |
20130321769 | MEASUREMENT APPARATUS, OPHTHALMOLOGIC IMAGING APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM - A measurement apparatus for measuring aberration based on return light of measuring light radiated to an object, includes a light source configured to emit the measuring light, a focusing unit configured to focus the measuring light on the object, an acquisition unit configured to acquire, from a storage unit, information indicating a state of the focusing unit corresponding to identification information of a specific object, and a control unit configured to control the focusing unit based on the acquired information indicating the state of the focusing unit. | 12-05-2013 |
20130321770 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS - An ophthalmologic photographing apparatus includes: an illuminating optical system for irradiating an examinee's eye with illuminating light; an imaging optical system including an imaging device for receiving a reflected light flux from the eye, the imaging optical system having an imaging optical axis inclined with respect to an optical axis of the illuminating optical system; and a first optical member for reducing an imaging incidence angle, the imaging incidence angle being defined as an angle between a normal direction of an imaging surface of the imaging device and a principal ray of the reflected light flux. | 12-05-2013 |
20130329187 | Method and Analysis Apparatus For Measuring A Cornea - A method and an analysis apparatus for measuring a cornea of an eye includes an ophthalmological analysis system. The ophthalmological analysis system measures a topography of a cornea in a measurement time interval to obtain a number of image data sets of a surface area of the cornea experiencing a change in intraocular pressure. A repeated change in the topography of the cornea is determined from the number of image data sets. | 12-12-2013 |
20130329188 | Systems for Extended Depth Frequency Domain Optical Coherence Tomography (FDOCT) and Related Methods - Systems for extended depth frequency domain optical coherence tomography are provided including a detection system configured to sample spectral elements at substantially equal frequency intervals, wherein a spectral width associated with the sampled spectral elements is not greater than one-half of the frequency interval. Related methods are also provided herein. | 12-12-2013 |
20130329189 | OPHTHALMOLOGIC PHOTOGRAPHY APPARATUS - Provided are an illumination optical system ( | 12-12-2013 |
20130335702 | OPHTHALMIC IMAGE SENSING APPARATUS - A focusing unit is constituted of a prism base, deflection prisms, and a slit chart having a slit opening, and the deflection prisms are arranged so that deflecting directions may become reverse. The slit opening is made equally to spread across the deflection prisms approximately and is impermeable except the slit opening, and light incident on the deflection prisms passes only this slit opening. In addition, the light which is emitted by a focus index illumination light source illuminates the slit opening through the deflection prisms. As to an image of the illuminated slit opening, two slit images are formed on a fundus of eye by actions of the deflection prisms. Focus adjustment is made by aligning these slit images in a straight line. | 12-19-2013 |
20130335703 | OPHTHALMOLOGY - Apparatus for illuminating the retina of an eye. The apparatus comprising an illumination device, a lens system, wherein the illumination device and the lens system combine to provide incident illumination from an apparent point source located within the lens system. The apparatus further comprising an illumination transfer device, wherein the illumination transfer device has two foci and the apparent point source of the lens system is provided at a first focus point of the illumination transfer device and an eye is accommodated at a second focus point of the illumination transfer device, and wherein the illumination transfer device transfers the incident illumination from the apparent point source into the eye to illuminate the retina. | 12-19-2013 |
20130342811 | APPARATUS FOR MEASURING OPTICAL PROPERTIES OF AN OBJECT - An apparatus for measuring optical properties of an object—such as, in particular, an eye—comprises a wavefront sensor for surveying wavefront aberrations generated by the object and an optical coherence tomograph, so that both wavefront aberrations and structures of the object can be surveyed. For this purpose a broadband laser radiation-source is provided for the OCT. A reference beam is generated with a retroreflector, and a beam-splitter serves as optical component both for the wavefront determination and for the OCT. | 12-26-2013 |
20140002792 | HOUSING FOR SECURING AND OPTICALLY ALIGNING A CAMERA TO A SCOPE, A METHOD OF ATTACHING SAID HOUSING, AND A KIT INCLUDING SAID MEMBERS | 01-02-2014 |
20140002793 | NON-INVASIVE OPTICAL MONITORING | 01-02-2014 |
20140002794 | Field of Light based Device | 01-02-2014 |
20140002795 | FUNDUS PHOTOGRAPHING APPARATUS | 01-02-2014 |
20140002796 | EQUIPMENT AND METHOD FOR EXAMINING, DIAGNOSING, OR AIDING THE DIAGNOSIS, AND THERAPY OF FUNCTIONAL VISION PROBLEMS | 01-02-2014 |
20140009738 | FUNDUS IMAGING APPARATUS - A fundus imaging apparatus includes: an interference optical system configured to detect, with a detector, an interference state between a reference light and a measurement light that is reflected at a fundus; an optical scanner configured to scan the fundus with the measurement light; an optical member configured to adjust an optical path length difference between the measurement light and the reference light; an imaging unit configured to photograph a tomographic image of the fundus based on an output signal from the detector; a first optical path length adjuster configured to move the optical member, based on a light-receiving signal output from the detector corresponding to a position of the optical member; a second optical path length adjuster configured to readjust a position of the optical member; and an optical system adjuster configured to adjust the interference optical system between adjustments by the first and second optical path length adjusters. | 01-09-2014 |
20140009739 | WEARABLE APPARATUS AND IR CONFIGURATION FOR OPTIMIZING EYE-TRACKING USED FOR HUMAN COMPUTER INTERACTION - A highly portable wearable apparatus is provided to capture high-quality image data of eye movement used for eye-tracking. The wearable apparatus comprises a coupling member adapted to securely couple the apparatus to an eyewear frame, an arm assembly having a distal end and configured to enable vertical and lateral of movements of the distal end, and an imaging assembly disposed on the distal end. The imaging assembly, via vertical and lateral movements of the distal end, can be disposed in a position close to an eye of a user that is suitable for eye-tracking when the user wears an eyewear frame with the apparatus deployed thereon. The imaging assembly is configured to capture infrared-illuminated eye and wirelessly transmit captured image data. A configuration in connection with infrared source placement is provided to achieve optimal glint-tracking used to track head movement for improving quality of eye-tracking. | 01-09-2014 |
20140009740 | OPHTHALMIC APPARATUS - An ophthalmic apparatus includes: a main unit including a unit for observing or photographing an examinee's eye; a movable part in which the main unit is mounted; a vertical movement mechanism provided with a drive part to move the movable part up and down; an operating member to be operated by an examiner to move the movable part up and down; a sensing part to detect an operation signal of the operating member; and a driving control part to convert the operation signal detected by the sensing part to a drive signal to move the movable part up and down, and drive the drive part based on the drive signal, wherein the drive part includes a motor having a hollow portion about a rotation axis thereof, the motor being controlled by the driving control part to rotate. | 01-09-2014 |
20140009741 | COMBINATION OPTICAL AND ULTRASONIC IMAGING OF AN EYE - A method and apparatus are disclosed for integrating optical coherence tomography (OCT) and very high frequency ultrasound (VHFU) imaging systems. An OCT probe and reference arm are mounted along with an ultrasound probe on a carriage capable of rotational, linear, and/or arcuate motion. The probe carriage may be immersed in water or other suitable medium. The OCT and VHFU probes move about the cornea surface such that the probe axes are substantially perpendicular relative to the cornea surface throughout a scan. The probes are able to be scanned in an arcuate path across the entire cornea surface. The method and apparatus disclosed are also directed towards providing a positioning mechanism and scan head comprising an arcuate guide track wherein only an OCT probe is mounted on the probe carriage. This embodiment allows the OCT probe beam to remain substantially perpendicular to the cornea and lens surfaces. | 01-09-2014 |
20140009742 | Imaging Device - A device for capturing images where the incident light passes through a modulator that adjusts to provide a selected image. Imagewise light is received in a sensor which is in communication with a processor that implements an optimization algorithm. The processor is in communication with the modulator and controls functioning of the modulator to optimize and to obtain the selected image. | 01-09-2014 |
20140016092 | IMAGE CAPTURING APPARATUS AND AUTO-FOCUSING METHOD THEREOF - An image capturing apparatus and an auto-focusing method thereof are provided. The method includes transmitting light beams from light sources to an eye including a cornea, a pupil, a crystalline lens, and a fundus. The light beams are transmitted to the fundus through the cornea. The light beams transmitted to the cornea form first light point images detected by an image sensor through a lens module having first and second lenses. According to the first light point images and focal adjustment data, the first lens and the light sources are moved simultaneously to focus on the cornea. The light beams are substantially intersected at the pupil and transmitted to the fundus to form second light point images detected by the image sensor through the lens module. According to the second light point images and the focal adjustment data, the first lens is moved to focus on the fundus. | 01-16-2014 |
20140016093 | APPARATUSES AND METHODS FOR DETERMINING TEAR FILM BREAK-UP TIME AND/OR FOR DETECTING LID MARGIN CONTACT AND BLINK RATES, PARTICULARY FOR DIAGNOSING, MEASURING, AND/OR ANALYZING DRY EYE CONDITIONS AND SYMPTOMS - Embodiments disclosed herein include devices, systems, and methods for determining tear film break-up time and for detecting eyelid margin contact and blink rates, particularly for diagnosing, measuring, and/or analyzing dry eye conditions and symptoms. The apparatus and methods for determining tear film break-up time and for detecting eyelid margin contact and blink rates, particularly for diagnosing, measuring, and/or analyzing dry eye conditions and symptoms may employ ocular surface interferometry (OSI) devices or other imaging and display devices capable of imaging and displaying a picture of a patient's eye during tear film break-up time and blink rate related procedures. | 01-16-2014 |
20140016094 | CORNEAL ENDOTHELIAL CELL PHOTOGRAPHING APPARATUS - A corneal endothelial cell photographing apparatus for photographing an endothelial cell in the cornea of the examinee's eye includes an optical system, an image processor, and a display controller. The optical system includes an illuminating optical system for irradiating the cornea with illuminating light, and a light receiving optical system including a light detector and configured to receive reflected light from the cornea including the endothelial cell. The image processor analyzes each of endothelial cell images photographed at different positions on the cornea, and acquires an integrated analysis result by integrating the result of analysis of each of the endothelial cell images. The display controller displays the endothelial cell images simultaneously on a monitor with reference to an endothelial cell image photographed at a central portion of the cornea, and displays the integrated analysis result on the same screen as for the endothelial cell images. | 01-16-2014 |
20140016095 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes a tomographic image acquisition unit configured to acquire a tomographic image of a subject's eye based on a combined beam obtained by combining a return beam from the subject's eye, which is irradiated with a measuring beam, and a reference beam corresponding to the measuring beam, an optical path length difference changing unit configured to change an optical path length difference between the measuring beam and the reference beam, and a control unit configured to, in a case where relative positions of an optical system for irradiating the subject's eye with the measuring beam and an anterior segment of the subject's eye satisfy a predetermined condition based on an image of the anterior segment, control the optical path length difference changing unit so that the optical path length difference is within a predetermined range. | 01-16-2014 |
20140016096 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - An image processing apparatus has an acquisition unit which acquires a second tomogram related to a first tomogram of an eye to be examined based on position information of an eye fundus of the eye to be examined according to a predetermined rule; and a display control unit which displays the first tomogram and the second tomogram on a display unit. | 01-16-2014 |
20140028974 | LINE-FIELD HOLOSCOPY - A novel imaging method, line-field holoscopy is presented. A line of light is projected across an object to be investigated through an imaging system. The light scattered from the investigated object is combined with reference radiation. The combined light is projected onto a detector providing a confocal restriction in one dimension. Astigmatic optics in the return path transform the light asymmetrically such that at the detector, the line focus is imaged to the confocal restriction, while the orthogonal direction is defocused. Embodiments including a swept source with linear detection array, and spectrometer based systems utilizing a 2D detector array are described. The data may be reconstructed to a B-scan by two-dimensional Fourier transform or other reconstruction method with or without combination of more complex algorithms. | 01-30-2014 |
20140028975 | MEDICAL SYSTEM - A medical system includes an acquisition unit configured to acquire a tomographic image of an object to be examined based on a combined beam generated by combining a return beam returning from the object to be examined illuminated with a measuring beam and a reference beam corresponding to the measuring beam, a focus position changing unit configured to change a focus position on the object to be examined;
| 01-30-2014 |
20140036229 | IMAGE CAPTURE DEVICE FOR FUNDUS AND IMAGING METHOD THEREOF - This invention discloses an image capture device for fundus and an imaging method thereof. The image capture device includes a lighting module, a splitter, a monochrome image sensor and an image synthesis module. The lighting module emits plurality beams of monochromatic light. The splitter is disposed on a light path of the lighting module. The splitter reflects the plurality beams of the monochromatic light to a fundus of an examinee and forms a plurality of reflecting light respectively through reflection of the fundus. The monochrome image sensor receives the plurality beams of the reflecting light and produces a monochromatic image corresponding to each beam of the monochromatic light. The image synthesis module receives each of the monochromatic images and synthesizes each monochromatic image into a color image. By such arrangements, the invention provides good quality fundus imaging and reduces costs. | 02-06-2014 |
20140043587 | METHODS, SYSTEMS, AND DEVICES FOR MONITORING ANISOCORIA AND ASYMMETRY OF PUPILLARY REACTION TO STIMULUS - A computer program is disclosed for performing the following method: recording images of a response of a left pupil to a stimulus thereby resulting in a first set of sequential images; recording images of a response of a right pupil to the same stimulus at the same time as the first images were recorded, thereby resulting in a second set of sequential images; displaying on a display simultaneously the first set of images and the second set of image, wherein the two sets of images are synchronized, and wherein a center of the left pupil of each image from the first set of sequential images is aligned with a center of the right pupil from the second set of sequential images on the display. | 02-13-2014 |
20140049748 | CORNEAL STROMAL MAPPING - A method of measurement is presented. A method of measurement according to some embodiments of the present invention includes obtaining a first measurement from a first imaging method; obtaining a second measurement from a second imaging method; combining the first and the second measurement to obtain a structural information and an image representation of a structure of an eye; calculating at least one shape parameter from the structural information; and displaying the image representation of the structure of the eye. | 02-20-2014 |
20140055745 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - This image processing apparatus includes: a planar image acquisition unit configured to acquire a planar image showing a polarization state of a subject, a tomographic image acquisition unit configured to acquire a three-dimensional tomographic image including a plurality of two-dimensional tomographic image of the subject, a display control unit configured to display, on the display unit, an index indicating a position of a tomographic image to be displayed on the display unit among a plurality of two-dimensional tomographic images, by superimposing it on a planar image showing the polarization state, and an instruction unit configured to give an instruction to change a position of the index on a planar image showing the polarization state. | 02-27-2014 |
20140055746 | Optical measuring device and system - The invention relates to an optical measuring device ( | 02-27-2014 |
20140055747 | Optical Measuring Device and Method for Capturing at Least One Parameter of at Least One Eye Wherein an Illumination Characteristic is Adjustable - The invention relates to an optical measuring device ( | 02-27-2014 |
20140055748 | FUNDUS IMAGING APPARATUS, METHOD OF CONTROLLING FUNDUS IMAGING APPARATUS, AND STORAGE MEDIUM - A fundus imaging apparatus comprising: position detection means for detecting a position of a pupil of an eye to be examined; wavefront detection means for detecting a wavefront of return light from the eye irradiated with light through an illumination optical system; correction means for correcting an aberration based on the detected wavefront; and determination means for determining a correction effective region of the correction means based on the detected position. | 02-27-2014 |
20140063447 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - There is provided an image processing apparatus, comprising: a tomographic image acquiring unit for acquiring a tomographic image of a retina; an instruction unit for instructing for a change in the positions of display forms indicating a plurality of regions in one of the display forms indicating a plurality of layer boundaries of a retina; and a display control unit for causing the display unit to display respective display forms indicating the plurality of layer boundaries in positions corresponding to the plurality of layer boundaries in the tomographic image in an overlapped state, and in a case of instructing for the change in the position of at least one of display forms, for causing the display unit to display the display form instructed with the display form different from other display forms. | 03-06-2014 |
20140063448 | OPHTHALMOLOGIC APPARATUS, CONTROL METHOD FOR OPHTHALMOLOGIC APPARATUS, AND PROGRAM - Provided is an ophthalmologic apparatus capable of efficiently switching between an attitude for packing and an attitude for eye examination. When a USB communication between the ophthalmologic apparatus and a PC for control is disconnected, an attitude of the ophthalmologic apparatus is switched from the attitude for eye examination to the attitude for packing. Even when the USB communication between the ophthalmologic apparatus and the PC for control is established, if there is no operation for a certain period of time, the attitude for eye examination is switched to the attitude for packing. When power of the ophthalmologic apparatus is turned off, the attitude for eye examination is switched to the attitude for packing, using a spare power supply provided to a main body of the ophthalmologic apparatus. | 03-06-2014 |
20140063449 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS, IMAGE PROCESSING APPARATUS, AND OPTICAL TOMOGRAPHIC IMAGE DISPLAY METHOD - Provided is an optical tomographic imaging apparatus including: a tomographic image acquiring unit for acquiring a tomographic image of an eye of a patient; a scanning type two-dimensional image acquiring unit for acquiring a two-dimensional image of the eye; a patient information storage unit for storing images acquired by the tomographic image acquiring unit and the scanning type two-dimensional image acquiring unit together with patient information; and a display unit. The display unit performs a list display of patient information of at least one patient stored in the patient information storage unit. When one patient is selected from a patient group in the list display, at least one past acquired tomographic image and a two-dimensional image acquired substantially simultaneously with the tomographic image of the patient are displayed as thumbnail images in a list. An image parameter of the tomographic image displayed as the thumbnail image is changeable. | 03-06-2014 |
20140063450 | IMAGING APPARATUS AND IMAGING METHOD - Provided is an imaging apparatus for acquiring a tomographic image of an object to be inspected based on light obtained by combining return light from the object illuminated with measuring light and reference light corresponding to the measuring light, the imaging apparatus including: a reference-light amount changing unit provided in an optical path of the reference light, for changing a reference-light amount of the reference light; and a control unit for controlling the reference-light amount changing means so as to control the reference-light amount within a predetermined range and an image quality of the tomographic image within a predetermined image-quality evaluation range. | 03-06-2014 |
20140063451 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - For appropriately obtaining the tomographic image and the layer thickness map are provided in a short period of time regardless of involuntary eye movement, when the tomographic image is to be obtained in a specific scan pattern, a 3D tomographic image is first obtained by 3D scan, and then a tomographic image of a desired part is extracted from the image in accordance with the specific scan pattern. Further, based on the obtained 3D tomographic image, a sector for layer thickness map display, a main scanning line, and a sub-scanning line, which are displayed on a fundus image, are set movable, and tomographic images taken along both the scanning lines after the movement are obtained. The sector having a center corresponding to the intersection between those scanning lines and the layer thickness map are recalculated and displayed so as to follow the intersection. | 03-06-2014 |
20140063452 | OPHTHALMOLOGIC APPARATUS AND CONTROL METHOD OF OPHTHALMOLOGIC APPARATUS - This invention provides an ophthalmologic apparatus that requires no fixation line control instruction by an operator to a patient even when executing an inspection set including a plurality of scanning conditions. In an ophthalmologic apparatus including a scanning unit configured to scan measuring light on an eye to be inspected and execute measurement of the eye to be inspected, and a fixation unit configured to fixate the eye to be inspected to a desired measurement position, a determination unit configured to determine whether to cause the scanning unit to continue the measurement of the eye to be inspected in accordance with an inspection set, and a fixation target control unit configured to change the on state of the fixation unit when the determination unit has determined to continue the measurement are arranged. | 03-06-2014 |
20140063453 | DIAGNOSIS SUPPORT APPARATUS AND METHOD - A diagnosis support apparatus comprises an acquiring unit that acquires a plurality of examination data items having different examination dates, a setting unit that sets an extraction condition for examination data items, an extracting unit that extracts, from the plurality of acquired examination data items, examination data items corresponding to the set extraction condition, and a displaying unit that arranges and displays the extracted examination data items, wherein the setting unit sets the extraction condition based on an interval between examination dates of examination data items. | 03-06-2014 |
20140063454 | OPHTHALMOLOGIC IMAGING APPARATUS AND OPHTHALMOLOGIC IMAGING METHOD - Provided is an ophthalmologic imaging apparatus, including: an imaging light source for illuminating a fundus; a light intensity detection unit for monitoring, at a time of imaging, an emission intensity from a start of emission of the imaging light source; an imaging light wavelength selection unit for selecting a wavelength band of light that is emitted from the imaging light source and illuminates the fundus; and a detection wavelength changing unit for changing a wavelength band of light to be guided from the imaging light source to the light intensity detection unit depending on the wavelength band selected by the imaging light wavelength selection unit. | 03-06-2014 |
20140063455 | APPARATUS AND METHOD FOR OPERATING A REAL TIME LARGE DIOPTER RANGE SEQUENTIAL WAVEFRONT SENSOR - A wavefront sensor includes a wavefront scanning module configured to output wavefront tilt measurements of a wavefront beam returned from a subject eye, a biometric/anatomic measurement device configured to output biometric/anatomic measurements of the subject eye and a processing system, coupled to the scanning module and the biometric/anatomic measurement device, configured to process biometric/anatomic measurements output during a surgical procedure to determine eye status information and to concurrently output eye status information and wavefront tilt information during the surgical procedure. | 03-06-2014 |
20140063456 | APPARATUS AND METHOD FOR OPERATING A REAL TIME LARGE DIOPTER RANGE SEQUENTIAL WAVEFRONT SENSOR - An wavefront sensor uses a calibration wave generator to calculate correction factors to be applied to ratiometric combinations of position sensor output signals to determine real centroid deflection values. | 03-06-2014 |
20140063457 | APPARATUS AND METHOD FOR OPERATING A REAL TIME LARGE DIOPTER RANGE SEQUENTIAL WAVEFRONT SENSOR - An wavefront including a light source for providing a light beam to illuminate a subject eye and a beam deflecting to deflect the light beam to compensate transverse movement of the subject eye. A second beam deflecting element scans the beam around a small portion of the retina to dissipate energy. | 03-06-2014 |
20140063458 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING SYSTEM FOR DISPLAYING INFORMATION ABOUT OCULAR BLOOD FLOW - An image processing apparatus includes an identification unit configured to identify a retinal blood vessel based on a retinal image, a measurement unit configured to measure blood flow information for the blood vessel based on the retinal image, and a display control unit configured to display the measured blood flow information by at least one selected from a depth of the identified blood vessel, a size of the identified blood vessel, and a combination of both. | 03-06-2014 |
20140078466 | METHOD OF CONTROLLING OPHTHALMIC OBSERVATION APPARATUS AND OPHTHALMIC OBSERVATION APPARATUS - A control method of an ophthalmic observation apparatus that comprises an analysis means that analyze an image of an eye formed by using OCT, comprising: storing operation mode information in which an operation mode is associated with operational details of at least the analysis means; identifying the operational details associated with the operation mode by referring to the stored operation mode information; and controlling at least the analysis means based on the identified operational details. The analysis means can execute multiple analytic processings including layer-thickness analysis and/or lesion identification analysis. In the operation mode information, the operation mode is associated with at least one of the multiple analytic processings. In the identifying step, the analytic processing that is associated with the operation mode is identified by referring to the operation mode information. In the controlling step, the identified analytic processing is executed by controlling the analysis means. | 03-20-2014 |
20140085603 | PORTABLE EYE IMAGING APPARATUS - A portable digital imaging device, which utilizes the advanced features of wireless data transmission and high computing power of mobile computing devices in junction with the use miniature cameras and solid state lighting technology, is proposed as the next generation of medical imaging devices, in particular in ophthalmic imaging applications. | 03-27-2014 |
20140085604 | GEOMETRIC OPTICAL POWER MEASUREMENT DEVICE - An ophthalmic optical power measurement device can include a light source configured to direct an input beam of light into the eye of a patient. The ophthalmic optical power measurement device can also include an aperture configured to receive an output beam that consists of light from the input beam that scatters from a location on the retina of the eye and exits through the pupil of the eye. The ophthalmic optical power measurement device can also include a detector configured to receive the output beam after it has passed through the aperture. A processor can be configured to determine the size of a spot created by the output beam on the detector, and to determine the optical power of the eye based upon the size of the spot. | 03-27-2014 |
20140085605 | FUNDUS OBSERVATION APPARATUS - The controller | 03-27-2014 |
20140085606 | OPHTHALMIC DIAGNOSIS SUPPORT APPARATUS AND OPHTHALMIC DIAGNOSIS SUPPORT METHOD - Provided is an ophthalmic diagnosis support apparatus which enables an operator to easily acquire a tomographic image suitable for detailed observation of a candidate lesion without spending time and effort to search for the candidate lesion. The ophthalmic diagnosis support apparatus includes an acquiring unit for acquiring a wide-range image of a fundus, a candidate lesion detection unit for detecting the candidate lesion on the fundus by analyzing the wide-range image, a calculating unit for determining a degree of abnormality of the candidate lesion based on a result of the detection of the candidate lesion, and an acquiring position setting unit for setting an acquiring position of the tomographic image of the fundus based on the degree of abnormality of the candidate lesion. | 03-27-2014 |
20140098342 | SYSTEM AND METHOD FOR CORNEAL IRRADIATION - A device and method for use thereof to illuminate a visual system of a subject includes a light-transforming optical element configured to transform a substantially collimated beam of light into light having a diverging spatial distribution. Optionally, light having such spatial distribution includes a plurality of diverging beams of light. An imaging system mechanically cooperated with the light-transforming optical element is configured such as to form an image of the light-transforming optical element at an image surface associated with the eye that is distant from the retina. The irradiance level at the image surface exceeds that at the retina. Optionally, the image surface adjoins or includes the cornea. The imaging system may include an optical system containing refractive and/or reflective optical elements. | 04-10-2014 |
20140098343 | METHOD FOR DETERMINING THE DOMINANT EYE - A method is provided for determining the dominant eye of a person using equipment designed to acquire at least one image of the face of the person, then process the image, and finally return information enabling the person to know which eye is the dominant eye thereof. The method uses a sighting device that is identifiable and locatable in relation to the equipment, with the viewing being carried out through a window with both eyes open. The size of the window is such that it does not allow the person to see said target with both eyes at the same time. The equipment acquires at least one image for viewing the position of both eyes of the person, processing the image by performing calculations while taking into account the position of a central point located between both eyes, the position of the target and the position of the window. | 04-10-2014 |
20140098344 | Diagnostic, Prescriptive, And Data-Gathering System And Method For Macular Pigment Deficits And Other Eye Disorders - A macular health measurement and storage system comprises a plurality of macular-pigment measurement machine for measuring macular pigment density in humans, a plurality of computers each of which is associated with a corresponding one the macular-pigment measuring machines, and a central host. The plurality of macular-pigment measurement machines include a device for receiving macular pigment data from a patient, at least one data transfer port, and at least one processor that enables the transfer of the macular pigment data from the transfer port. The plurality of computers include a first port coupled to the data transfer port of the corresponding macular-pigment measurement machine for receiving the macular pigment data. Each of the computers includes a second port for transferring patient data. The central host is coupled to the second ports on each of the plurality of computers. The central host includes a storage device for storing the patient data. | 04-10-2014 |
20140098345 | OPHTHALMIC OPTICAL COHERENCE TOMOGRAPHY SYSTEM AND METHOD FOR QUICK SWITCHING TO REALIZE ANTERIOR AND POSTERIOR EYE SEGMENTS IMAGING - It is provided an ophthalmic optical coherence tomography system in the invention, the system comprising: an OCT interferometer primary module and a sample arm module, wherein the OCT interferometer primary module comprises an OCT light source, a fiber coupler, a reference arm, a detection module, an X-direction scanning unit, and a Y-direction scanning unit; the sample arm module comprises an anterior eye segment imaging module and a posterior eye segment imaging module; the Y-direction scanning unit is rotatable; when the Y-direction scanning unit is at a first rotation angle, the Y-direction scanning unit reflects the light received by the X-direction scanning unit into the anterior eye segment imaging module; and when the Y-direction scanning unit is at a second rotation angle, the Y-direction scanning unit reflects the light received by the X-direction scanning unit into the posterior eye segment imaging module. It is further provided a method for quick switching to realize anterior and posterior eye segments imaging in the invention, in which imaging at one time and quick switching for locations at different depths can be realized, and on this basis, the eye axial length can be measured accurately. | 04-10-2014 |
20140104569 | OPHTHALMIC APPARATUS AND WAVEFRONT ABERRATION CORRECTION METHOD THEREFOR - An ophthalmic apparatus which captures an image of a retina by illuminating the fundus of an eye to be examined with light from a light source through a measuring optical path is provided. The ophthalmic apparatus divides light from the light source into light propagating to the measuring optical path and light propagating to a reference optical path different from the measuring optical path, obtains interference light by composing return light returned along the reference optical path and return light from the measuring optical path, images interference fringes generated by the interference light composed at a position conjugate with the position of the pupil of the eye, and corrects a wavefront aberration of light passing through the measuring optical path by using correction data for correcting a wavefront aberration of the eye which is obtained from a captured image of interference fringes. | 04-17-2014 |
20140104570 | OPHTHALMOLOGIC IMAGING APPARATUS, OPHTHALMOLOGIC IMAGING METHOD, AND PROGRAM - A fundus camera, which does not take time for adjustment of illumination light amount and focusing even if brightness of the fundus is different for each eye to be inspected, includes an illumination unit for illuminating the fundus of the eye to be inspected, a photometry unit for performing photometry of reflection light from the fundus illuminated by the illumination unit, an illumination light amount control unit for controlling a light amount of the illumination unit, a focus detection area determining unit for determining a focus detection area with respect to a fundus image taken by an image pickup unit, and a focus detection unit for detecting a focus position in the area determined by the focus detection area determining unit. The photometry unit calculates a photometry value of the focus detection area, and the illumination light amount is controlled based on the photometry value. | 04-17-2014 |
20140104571 | OPHTHALMOLOGIC IMAGING METHOD, IMAGING APPARATUS, AND NON-TRANSITORY TANGIBLE MEDIUM - In order to perform observation and imaging by the same image capture unit, an ophthalmologic imaging method includes illuminating a fundus of an eye to be inspected with light having a first wavelength, guiding return light from the fundus to an image capture unit through a focus lens so as to obtain an in-focus position of the focus lens in accordance with the light having the first wavelength, illuminating the fundus with light having a second wavelength different from the first wavelength, and guiding return light from the fundus to the image capture unit through the focus lens so as to obtain an image of the fundus. The focus lens is moved to an in-focus position for the light having the second wavelength based on a wavelength difference between the light having the first wavelength and the light having the second wavelength. | 04-17-2014 |
20140104572 | TUNABLE ACHROMATIZING OPTICAL APPARATUS, METHODS, AND APPLICATIONS - A tunable, achromatizing optical system for use with a broadband imaging modality system for imaging objects having a range of longitudinal chromatic aberration (LCA) values. The optical system includes an achromatizing component and a parfocal component, for example, a zoom system. A method for tuning the wavefront curvature of different chromatic components of objects having a range of longitudinal chromatic aberration (LCA) values when imaged by a broadband imaging modality system includes the steps of providing a broadband imaging modality system having an entrance pupil, for imaging an object having longitudinal chromatic aberration; providing a tunable, achromatizing optical system; and varying the focal length of the parfocal component while maintaining a conjugate relationship between the achromatizing component and the entrance pupil of the broadband imaging modality system. | 04-17-2014 |
20140104573 | OPHTHALMIC IMAGING APPARATUS AND CONTROL METHOD THEREOF - An ophthalmic imaging apparatus divides a frame image obtained by capturing a moving image into a plurality of regions grouping pixels, and acquires photometric values corresponding the plurality of the regions. Further, the ophthalmic imaging apparatus determines acknowledgement or dis-acknowledgement of capturing a still image based on temporal variation of the acquired photometric values or distribution of the acquired photometric values on a fundus image. The ophthalmic imaging apparatus inhibits to execute a still image capturing of the fundus if the dis-acknowledgement of capturing is determined. | 04-17-2014 |
20140104574 | FULL-EYE ILLUMINATION OCULAR SURFACE IMAGING OF AN OCULAR TEAR FILM FOR DETERMINING TEAR FILM THICKNESS AND/OR PROVIDING OCULAR TOPOGRAPHY - Ocular surface interferometry (OSI) devices, systems, and methods are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including the lipid layer thickness (LLT) and/or the aqueous layer thickness (ALT). The TFLT can be used to diagnose dry eye syndrome (DES). Certain embodiments also include ocular topography devices, systems and methods for deducing corneal shape by capturing an image of a target reflecting from the surface of the cornea. The image of the target contains topography information that is reviewable by a clinician to diagnose the health of the patient's eye by detecting corneal aberrations and/or abnormalities in corneal shape. Certain embodiments also include a combination of the OSI and ocular topography devices, systems and methods to provide imaging that can be used to yield a combined diagnosis of the patient's tear film and corneal shape. | 04-17-2014 |
20140111766 | OPHTHALMOLOGIC APPARATUS, OPHTHALMOLOGIC CONTROL METHOD, AND PROGRAM - An ophthalmologic apparatus includes a projection unit configured to project a light flux to a subject's eye, an imaging optical system configured to form an image of the light flux reflected by the subject's eye or an image of the subject's eye on an imaging plane, an imaging unit provided on the imaging plane of the imaging optical system, a determination unit configured to determine a parameter regarding the imaging unit or the projection unit for acquiring unique information of the subject's eye based on a physical property of the subject's eye, and an acquisition unit configured to acquire the unique information based on the image of the light flux or the image of the subject's eye captured by the imaging unit with use of the determined parameter. | 04-24-2014 |
20140111767 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS AND OPHTHALMOLOGIC PHOTOGRAPHING METHOD - An ophthalmologic photographing apparatus includes: an optical coherence system for obtaining a tomographic image of an examinee's eye, having an optical scanner for scanning the eye with measurement light and a detector for detecting an interference signal of the light and reference light; an observing optical system for acquiring a front image of the eye; a scan controller for controlling the optical scanner to scan with the light different transverse positions set on the image, and acquire first interference signals at the positions; a display controller for displaying on a monitor an image created in response to the first interference signal; and an image recapture setting unit for setting a rephotographing transverse position in response to an operation signal from an operating unit for the image on the monitor. The scan controller scans the eye with the light at the rephotographing transverse position, and acquires a second interference signal. | 04-24-2014 |
20140111768 | OPHTHALMOLOGIC APPARATUS, OPHTHALMOLOGICAL CONTROL METHOD, AND STORAGE MEDIUM - The ophthalmologic apparatus includes a light source configured to irradiate a subject's eye, an irradiation optical system arranged between the light source and the subject's eye, a first image forming optical system configured to include a first optical path splitting member for splitting an optical path of the irradiation optical system and form an image of a return light from the subject's eye as a first image, and a second image forming optical system configured to include a second optical path splitting member for splitting an optical path of the irradiation optical system and form an image of a light output from the light source without through the subject's eye as a second image on a different position from that of the first image. | 04-24-2014 |
20140111769 | Compensation Optical Apparatus and Image Sensing Apparatus - A compensation optical apparatus for obtaining and image of an object without reduction in image quality irrespective of aberration compensation, includes: a division unit for dividing a return beam from a measured object; an aberration measurement unit for measuring an aberration caused by the measured object, with a divided beam from the division unit; an aberration compensation unit for performing aberration compensation based on the aberration measured by the aberration measurement unit; a projection unit for projecting a beam obtained by the aberration compensation in the aberration compensation unit to the measured object; an acquirement unit for acquiring a value exhibiting a state of the measured object based on the return beam from the measured object, which is obtained by the beam projected from the projection unit; and a control unit for retreating the division unit from an optical path based on the value acquired by the acquirement unit. | 04-24-2014 |
20140118686 | IMAGING APPARATUS AND FOCUSING METHOD FOR IMAGING APPARATUS - Provided is an ophthalmologic apparatus having an automatic focusing function and capable of imaging a subject in focus, including: a light intensity control unit for controlling a light intensity of light guided to an object to be inspected; an imaging unit for imaging the object to be inspected which is illuminated by the light; a focus state detection unit for detecting a focus state of the imaging unit with respect to the object to be inspected based on an output from the imaging unit; a focus lens drive unit for driving a focus lens based on the focus state detected by the focus state detection unit; and a drive control unit for controlling the focus lens drive unit to operate in accordance with timing when the light intensity of the light is changed by the light intensity control unit. | 05-01-2014 |
20140118687 | OPHTHALMIC APPARATUS AND CONTROL METHOD THEREFOR - An ophthalmic apparatus includes an illumination optical system which projects an illumination light beam from an illumination light source onto the fundus of the eye to be examined and an imaging optical system which guides reflected light from the fundus to imaging part. The ophthalmic apparatus calculates the contrast value of the fundus image formed by the imaging part, and focuses the imaging optical system on the fundus by moving a focus lens in the optical-axis direction of the imaging optical system based on the contrast value obtained by the calculation. The apparatus adjusts the contrast value obtained by the above calculation based on the position of the focus lens in the optical-axis direction. | 05-01-2014 |
20140118688 | OPHTHALMIC APPARATUS, IMAGING CONTROL APPARATUS, AND IMAGING CONTROL METHOD - An imaging control apparatus executes focusing operation for setting an in-focus state of an imaging optical system for an imaging device on an object by using the object image obtained by imaging the object illuminated by an illumination light source by using the imaging device. The imaging control apparatus changes an imaging setting to change the signal-to-noise ratio of the object image between the time of executing the focusing operation and other times. The imaging control apparatus processes the object image so as to maintain the tonality of the image displayed on a display device before and after an imaging setting is changed and displays the processed object image on the display device. | 05-01-2014 |
20140118689 | FUNDUS IMAGING APPARATUS AND CONTROL METHOD - A fundus imaging apparatus selects a focal position detection method in accordance with whether a diopter correction lens is inserted in an optical path of an imaging optical system that includes an imaging unit; and detects a focal position based on a signal from the imaging unit according to the selected focal position detection method. | 05-01-2014 |
20140118690 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus configured to process a tomographic image indicating the polarization state of a subject, includes an acquisition unit configured to acquire a plurality of the tomographic images imaged at different times, an extraction unit configured to extract each depolarized area from the plurality of the tomographic images, and a display control unit configured to display information about each depolarized area on a display unit with the information associated with each other. | 05-01-2014 |
20140118691 | OPHTHALMIC APPARATUS, IMAGING CONTROL APPARATUS, AND IMAGING CONTROL METHOD - An imaging control apparatus performs focusing operation to set an imaging optical system for an image sensor in an in-focus state with respect to an object illuminated by a light source by using an object image obtained by imaging the object using the image sensor. The imaging control apparatus changes an imaging setting so as to set the signal-to-noise ratio of an acquired object image during execution of focusing operation for this focusing higher than that during non-execution of the focusing operation. | 05-01-2014 |
20140118692 | OPHTHALMOLOGIC APPARATUS AND CONTROL METHOD - An ophthalmologic apparatus includes a focusing unit configured to focus, on an imaging unit, a return beam from a fundus of a subject's eye, a first drive unit configured to drive the focusing unit based on an index image obtained by imaging, using the imaging unit, a return beam from the fundus resulting from an index projected on the fundus by a projection unit, and a second drive unit configured to drive, after the first drive unit has driven the focusing unit, the focusing unit based on a contrast of a fundus image obtained by imaging, using the imaging unit, a return beam from the fundus, the fundus having been illuminated by an illumination unit. | 05-01-2014 |
20140118693 | OPHTHALMOLOGIC APPARATUS, CONTROL METHOD THEREOF, AND PROGRAM - An ophthalmologic apparatus includes an illumination projection unit configured to project an illumination light onto a fundus of a subject's eye, an index projection unit configured to project an index onto the subject's eye, an image capturing unit configured to capture a fundus image including an index image based on light returning from the subject's eye, a focusing unit configured to focus the light returning from the subject's eye onto the photographic unit, a detection unit configured to detect a position of the index image in the fundus image, a determination unit configured to determine the area in the fundus image which does not include the index image based on results detected by the detection unit, and a control unit configured to control the focusing unit based on contrast of the area determined by the determination unit. | 05-01-2014 |
20140118694 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS AND OPHTHALMOLOGIC PHOTOGRAPHING METHOD - An ophthalmologic photographing apparatus includes: a photographing optical system including an optical scanner for scanning an examinee's eye with measurement light and a detector for detecting a coherent state of reflected light of the measurement light from the examinee's eye and reference light, the photographing optical system being configured to capture a tomographic image of the examinee's eye in response to an output signal from the detector; a reference data setting unit for setting a photographing condition of a previously acquired captured image as reference data for a follow-up; an image capture data setting unit for setting the reference data set by the reference data setting unit as image capture data for the follow-up; and a tomographic image acquisition controller for acquiring a tomographic image of the examinee's eye by controlling the photographing optical system based on the reference data set as the image capture data. | 05-01-2014 |
20140118695 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes an aberration measuring unit configured to measure wavefront aberration of returning light, and a reflective optical modulation device configured to modulate the returning light. A control unit controls the reflective optical modulation device to correct the wavefront aberration of the returning light based on a measurement result of the aberration measuring unit. The reflective optical modulation device includes a reflection mirror of which the diameter of an effective region (effective diameter) that reflects the measurement light or the returning beam is 7.5 mm or less, and 61 or more actuators that act on the reflection mirror within the effective diameter. Each of the actuators includes an interdigital electrode having a maximum displacement of 7.5 μm or more. | 05-01-2014 |
20140118696 | OPHTHALMOLOGIC VISUALIZATION SYSTEM - A method determines the position and/or radius of the limbus and/or the position and/or radius of the pupil of a patient eye. In the method, an image of the patient eye is obtained and a plurality of different ring-shaped comparison objects having respective radii and respective centers are provided. The image is correlated with the plurality of comparison objects to yield a local best match between the image and the comparison objects when there is a coincidence of one of the ring-shaped comparison objects and a ring-shaped jump in brightness in the image having the same radius and the same center. The comparison objects having a local best match with the image are determined. Thereafter, the position of the center of the comparison object having a local best match with the image is selected as the position of the center of the limbus and/or the position of the center of the pupil. | 05-01-2014 |
20140125949 | ELECTRONIC EYE MARKING/REGISTRATION - One embodiment is a method for finding, calculating and electronically marking a reference axis for astigmatism correction/neutralization of a patient eye during a refractive surgery. | 05-08-2014 |
20140125950 | ACTUATOR, DEFORMABLE MIRROR, ADAPTIVE OPTICS SYSTEM USING THE DEFORMABLE MIRROR, AND SCANNING LASER OPHTHALMOSCOPE USING THE ADAPTIVE OPTICS SYSTEM - Provided is an actuator including a substrate, a movable portion provided so as to be movable with respect to the substrate, at least three elastic bodies for supporting the movable portion to the substrate in a displaceable manner, a movable comb electrode supported by the movable portion and extending in a direction parallel to a surface of the substrate, and a fixed comb electrode supported by the substrate and extending in the direction parallel to the surface of the substrate in which the movable comb electrode and the fixed comb electrode are arranged so as to be alternately engaged with each other with a distance, and each of all of the elastic bodies has a long axis that forms an angle of more than 90° and 180° or less with respect to at least one of the other elastic bodies. | 05-08-2014 |
20140125951 | OPTICAL COHERENCE TOMOGRAPHY DEVICE AND OPTICAL COHRENCE TOMOGRAPHY METHOD - The present invention relates to an optical coherence tomography device and an optical coherence tomography method using same for capturing the cornea and the retina of the eye by using light sources in respectively different wavelength ranges. According to the present invention, included are two light sources, a first interferometer and a second interferometer for generating respectively different interference patterns by the light outputted from each of the light sources, and interference pattern detection means for detecting an interference pattern occurring in each interferometer. | 05-08-2014 |
20140125952 | Optical Coherence Tomography (OCT) Imaging Systems for Use in Ophthalmic Applications - Optical coherence tomography (OCT) imaging systems for imaging an eye are provided including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path, the reference arm path having an associated reference arm path length. A sample having an associated sample arm path coupled to the source arm and reference arm paths is provided. A reference arm path length adjustment module is coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye length of the subject. Related methods and computer program products are also provided. | 05-08-2014 |
20140132917 | ELECTROSTATIC COMB ACTUATOR, DEFORMABLE MIRROR USING THE ELECTROSTATIC COMB ACTUATOR, ADAPTIVE OPTICS SYSTEM USING THE DEFORMABLE MIRROR, AND SCANNING LASER OPHTHALMOSCOPE USING THE ADAPTIVE OPTICS SYSTEM - Provided is an actuator formed in a substrate including a handle layer, an elastic body layer, and an insulating layer, the actuator including a movable portion supported to a support portion by an elastic body, a movable comb electrode formed on the movable portion, a fixed comb electrode supported by the support portion, and electrode wirings connected to the respective comb electrodes in which the elastic body supports the movable portion such that the movable portion is displaceable in a direction perpendicular to the substrate in accordance with voltages applied to the comb electrodes; the comb electrodes are made up of the handle layer, and the elastic body is made up of the elastic body layer; and a handle layer separation groove is provided to electrically separate between the handle layers of the support portions supporting the comb electrodes, and a structure reinforcing portion is formed across the separation groove. | 05-15-2014 |
20140132918 | OPHTHALMOLOGIC APPARATUS AND METHOD - An ophthalmologic apparatus obtains a suitable defocus state early in split AF even immediately after the apparatus shifts to an fundus observation state. At the time of focus state detection immediately after the shift to the fundus observation state, the apparatus tarns the fundus observing illumination light off if a focus determination unit determines that the defocus amount is equal to or more than a predetermined value, and turns the fundus observing illumination light on if the focus determination unit determines that an in-focus state immediately before photographing is obtained, thereby allowing the examiner to check a fundus state immediately before photographing. | 05-15-2014 |
20140132919 | OPHTHALMOLOGIC PHOTOGRAPHING APPARATUS - Provided is an ophthalmologic apparatus including: photographing units for photographing an eye in different modes; a photographing mode switchover unit for switching the photographing units; a photographing light intensity memory unit for storing a photographing light intensity for each photographing mode; a reference light intensity setting unit for setting a reference light intensity serving as a switchover determination reference of the photographing mode; a photographing mode switchover setting unit for setting a switchover operation for each photographing mode and an operation timing at which an operation of the photographing mode is to be executed; and a control unit for controlling such that, when the photographing light intensity is equal to or higher than the reference light intensity at a predetermined operation timing, the photographing mode switchover setting unit switches the photographing mode to a photographing mode used for the photographing light intensity less than the reference light intensity. | 05-15-2014 |
20140132920 | OPHTHALMOLOGIC INFORMATION PROCESS SYSTEM AND OPHTHALMOLOGIC APPLICATION - Selection items which can be executed by an ophthalmologic application are displayed on a display portion on an ophthalmologic apparatus, and can be selected and executed by an operation portion on the ophthalmologic apparatus, thereby providing an ophthalmologic information process system and program which can reduce load on the operator and increase the overall throughput of examination. An ophthalmologic application transmits executable selection item information to the ophthalmologic apparatus and causes the ophthalmologic apparatus to display the information. Selection of one of the displayed selection items is executed by operation on the ophthalmologic apparatus. The behavior of the application is then controlled in accordance with the selection item. | 05-15-2014 |
20140132921 | EYE IMAGING SYSTEM - An eye imaging system, including: a light source module; a radial splitting module; a common optical module; an image receiver; a power supply module for the light source module; a driver module for the image receiver; a processing-displaying module; and a motion driving module. The image receiver is an area array sensor. The motion driving module is connected to the light source module and drives the light source module to move in a radial direction of an upstream illuminating optical path formed by the light source module and the radial splitting module. The image receiver continually opens for exposure in a radial direction of a downstream observation optical path formed by the radial splitting module and the image receiver. The continual opening of the image receiver for signal acquisition is synchronous with the movement of the light source module. | 05-15-2014 |
20140139805 | Remote exam viewing system - An Internet-enabled software engine is provided on a global server to provide remote viewing and manipulation of ophthalmic exams, with the Internet-enabled software engine being an instantiation of the functionability of the OCT machine on which the exam is performed, and with the Internet-enabled software engine providing both remote viewing of OCT exams and manipulation of this data, thus to give a user the ability to view and manipulate the dense data sets associated with ophthalmic exams anywhere in the world with ease. | 05-22-2014 |
20140146286 | ADAPTIVE OPTICAL APPARATUS, IMAGING APPARATUS, AND CONTROL METHOD AND PROGRAM - An adaptive optical apparatus includes: a correction unit configured to correct a wavefront aberration of an eye to be examined; a detection unit configured to detect that an eyelid of the eye to be examined is closed or the eyelid of the eye to be examined is open, by using return light from the eye to be examined irradiated by measurement light; and a control unit configured to control the correction unit according to a detection result from the detection unit. | 05-29-2014 |
20140146287 | OPHTHALMOLOGIC APPARATUS AND METHOD FOR CONTROLLING THE SAME - An ophthalmologic apparatus includes a photographing optical system configured to photograph a fundus of a subject's eye via a focusing lens, a projection unit configured to project, via a mask portion including an opening, a focusing index corresponding to the opening, and a driving unit configured to drive the focusing lens along an optical path based on a position of an image corresponding to the mask portion and a position of a focusing index image corresponding to the opening in a fundus image of the subject's eye. | 05-29-2014 |
20140152957 | OPTIC NEUROPATHY DETECTION WITH THREE-DIMENSIONAL OPTICAL COHERENCE TOMOGRAPHY - Based on optical coherence tomography (OCT) imaging of a portion of an eye, a mask of an anatomical feature is derived. Using the mask as a reference, a scan path is determined that is at least partially fitted to and/or partially enclosing the mask. OCT scan data corresponding to the scan path is acquired and analyzed to detect optic neuropathies. | 06-05-2014 |
20140160429 | OPHTHALMIC IMAGING APPARATUS, CONTROL METHOD OF OPHTHALMIC IMAGING APPARATUS AND STORAGE MEDIUM - An apparatus comprises: a projection unit arranged in an illumination optical system for projecting illumination light onto a fundus of an eye and to project a focus index onto the eye; a focus lens arranged in a light-receiving optical system for guiding reflected light from the fundus to an image sensor and to focus the image sensor on the fundus; a first unit to detect an approximate focus position using the focus index in a first mode; a second unit to detect a focus position in a second mode by evaluating a luminance-contrast of a fundus image formed on the image sensor based on the approximate focus position; and a control unit to control positions of the focus lens and the projection unit in association with each other in the first mode, and control them independently in the second mode. | 06-12-2014 |
20140160430 | EXTENDED RANGE IMAGING - An imager that can provide separated images corresponding to differing depths in a sample is presented. In accordance with some embodiments of the invention, an imager can include a light source; a sample arm that receives light from the light source, directs the light to a sample, and captures light returning from the sample; a modulation source that provides different modulations corresponding to differing imaging depths in the sample; a detector system to receive the captured light from the sample with the different modulations; and a processor that receives signals from the detector system and separates a plurality of images corresponding with the differing image depths in the sample. | 06-12-2014 |
20140160431 | Systems for Comprehensive Fourier Domain Optical Coherence Tomography (FDOCT) and Related Methods - Optical coherence tomography systems for imaging a whole eye are provided including a sample arm including focal optics that are configured to rapidly switch between at least two scanning modes in less than about 1.0 second. | 06-12-2014 |
20140176903 | TWO-DIMENSIONAL CONFOCAL IMAGING USING OCT LIGHT SOURCE AND SCAN OPTICS - Various approaches are disclosed for simultaneously generating optical coherence tomography (OCT) and confocal scanning laser images by spatially separating the signal normally used for OCT imaging with selective reflecting or beam directing devices. In one preferred embodiment, the invention includes a minor having a central transmission region, such that the radially outer region of the returning signal beam is reflected and used for generating a confocal image while the central part of the signal beam is transmitted and used to generate an OCT image. In other embodiments, the signals may be spatially separated in other ways, such as with an optic having a reflective center surface, a mirror having two parts oriented at different angles, one or more wedged optics, or a dispersive component. A further aspect of the invention is the ability to increase the frame rate of the confocal imaging. | 06-26-2014 |
20140176904 | Ophthalmic Aberrometer Capable of Subjective Refraction - The present invention contemplates an ophthalmic aberrometer combining measurements of wavefront aberrations and subjective refraction into a single instrument and refers both measurements to the same corneal plane The present invention also contemplates an ophthalmic aberrometer employing an open field and subjective correction to overcome instrument myopia and to ensure accurate measurement of the best-corrected visual acuity in addition to measurement of wavefront aberrations. The present invention further contemplates an ophthalmic aberrometer implementing an optical relay with adjustable optical power compensation to eliminate the need for flipping plurality sets of trial lenses for defocus correction. The present invention also further contemplates an ophthalmic aberrometer making wavefront measurement along a viewing path of the subject eye and enabling accurate measurement of the residual wavefront aberrations after compensating for the subjective refraction. | 06-26-2014 |
20140176905 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING SYSTEM, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING COMPUTER PROGRAM - An image processing apparatus according to the present invention includes an acquisition unit configured to acquire a tomography image of a target to be captured, a detection unit configured to detect layer boundaries of a plurality of layers sequentially positioned in the depth direction from the acquired tomography image, and a determination unit configured to determine a structure of the target to be captured according to the number of the detected layer boundaries. | 06-26-2014 |
20140176906 | SYSTEMS AND METHODS FOR BALANCING INFRARED ILLUMINATION IN EYE IMAGING - The field of the invention relates to systems and methods for eye imaging and, more particularly, for balancing illuminations in eye imaging. An asymmetric illumination method to compensate for the imbalance illumination caused by nose reflection is described. In one embodiment, a method for balancing illuminations in eye imaging comprises generating one or more eye images, using the images to detect the imbalance illuminations from the nasal sclera and temporal sclera with the selected region of interest. In another embodiment, a system for balancing illuminations in eye imaging uses the detected imbalance illumination ratio of nasal/temporal sclera as the signal for adjusting the brightness of the infrared LEDs for asymmetric illumination. | 06-26-2014 |
20140176907 | ABERRATION CORRECTING METHOD AND ABERRATION CORRECTING APPARATUS - Aberration is measured as phase information at each of a plurality of aberration measurement points, and at the time of correcting the aberration with correction pixels of an aberration correction unit of which the number is greater than the number of the plurality of aberration measurement points, correction pixels corresponding to each aberration measurement point are driven based on the phase information. Regarding correction pixels not positionally corresponding to the aberration measurement points, the aberration correction unit is driven based on phase information in the vicinity of this correction pixel. | 06-26-2014 |
20140176908 | APPARATUS AND METHOD FOR DETECTING AMYLOID IN A RETINA IN A DIAGNOSIS, ADVANCEMENT, AND PROGNOSING OF ALZHEIMER'S DISEASE, TRAUMATIC BRAIN INJURY, MACULAR DEGENERATION AND A PLURALITY OF NEURODEGENERATIVE DISSORDERS AND OCULAR DISEASES - An eye imaging apparatus to produce an image of an eye of a patient user is disclosed. The eye imaging apparatus may include a video camera, a slit lamp chinrest, a camera housing, a plurality of illumination source optics and a processing system. The eye imaging apparatus may also include a video camera, a plurality of video camera optics, a camera housing, a microscope assembly, a plurality of illumination source optics and a floor base. The eye imaging apparatus may be utilized in combination with one or more contrasting agents. The eye imaging apparatus may detect amyloid-beta plaque, amyloid or amyloid-beta peptide by a spectral signature. | 06-26-2014 |
20140185006 | IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, PROGRAM, AND OPHTHALMIC APPARATUS - A distortion in an image, which occurs when the image is formed by scanning a retina with a resonance scanner, is reduced. An image forming apparatus for forming an image of an object to be inspected includes: a detecting unit for detecting signals relating to a resonance scanner which is set to scan the object to be inspected with measurement light at a first frequency; a determining unit for determining a second frequency which is estimated to be used for the scanning by the resonance scanner, based on a correlation between groups of the detected signals for each cycle of the first frequency; and an image forming unit for forming the image of the object to be inspected based on the determined second frequency. | 07-03-2014 |
20140185007 | IMAGE PROCESSING APPARATUS AND METHOD OF CONTROLLING SAME - An ophthalmological apparatus includes a first acquiring unit configured to acquire a first eye fundus image of an eye to be examined on basis of return light from the eye to be examined having a corrected aberration of the eye to be examined, a second acquiring unit configured to acquire a second eye fundus image of the eye to be examined, an aligning unit configured to align the first eye fundus image and the second eye fundus image, and a region setting unit configured to set a candidate region of interest on basis of the alignment. | 07-03-2014 |
20140185008 | ABERRATION CORRECTION METHOD, PHOTOGRAPHING METHOD AND PHOTOGRAPHING APPARATUS - A fundus image photographing apparatus with adaptive optics generally corrects an aberration by feedback control using a wave front sensor and a wave front correction device. The reduction in the time required to correct the aberration to a high-resolution photographing level is demanded. Aberration correction information of last photographing is stored for each subject, and a stored correction value is used to correct the aberration to reduce the time before the completion of the aberration correction. If there is no stored information, a correction value for a preset reference aberration amount is used. | 07-03-2014 |
20140192319 | FUNDUS IMAGE DETECTION APPARATUS AND METHOD FOR OBTAINING FUNDUS IMAGE OF EYE OF ANIMAL - A fundus image detection apparatus capable of detecting a fundus image of an eye of an animal is provided. The fundus image detection apparatus includes an image capturing unit and an image processing unit electrically connected with the image capturing unit. The image processing unit has a lookup table. The image processing unit corrects the fundus image of the eye of the animal according to the lookup table to diminish pincushion distortion. Moreover, a method for obtaining a fundus image of an eye of an animal is also provided. | 07-10-2014 |
20140192320 | IMAGE CAPTURING APPARATUS AND CAPTURING METHOD - An image capturing apparatus including a plurality of image sensing modules and at least a light source is provided for capturing an image of an eye. Each of the image sensing modules includes an image sensor and a lens. The light source emits an illumination light, and the illumination light irradiates the eye. The eye reflects the illumination light into an image light. The image light includes a plurality of sub-image beams, and the sub-image beams are transmitted to the image sensors of the image sensing modules through the lenses of the image sensing modules, respectively. A capturing method is also provided. | 07-10-2014 |
20140192321 | CAMERA DEVICE AND PHOTOGRAPHING METHOD - A camera device configured to obtain an image of an eye is provided. The camera apparatus includes an image sensing unit, a lens set, and a processing unit. The lens set is located between the image sensing unit and the eye and projects light from the eye to the image sensing unit. Here, the lens set and the image sensing unit correspondingly move relative to the eye and continuously shoot a plurality of images of a plurality of parts of the eye. The processing unit is electrically connected to the image sensing unit, and the processing unit stitches the images. A photographing method is also provided. | 07-10-2014 |
20140192322 | IMAGING APPARATUS - An imaging apparatus configured to capture an image of an object to be detected is provided. The imaging apparatus includes an imaging unit, a lens, and a front cover. The lens is located on the imaging unit and has a first optical axis. The front cover is rotatably connected to the lens. Relative locations of the front cover and the object are fixed by the leaning-against of the front cover. The lens is rotated with respect to the front cover, so that the first optical axis is rotated with respect to the object. | 07-10-2014 |
20140192323 | CONTROL DEVICE, CONTROL METHOD AND CONTROL PROGRAM FOR OPTICAL COHERENCE TOMOGRAPHIC IMAGE-GENERATING APPARATUSES - To measure internal information on the subject, the OCT (optical coherence tomographic) control device is equipped with: a first imaging control means for initiating imaging when it is determined that input of a measurement instruction to scan the laser light at a prescribed pitch in the imaging target area of a sample using the galvano mirror has been received, and completing imaging in an imaging time that matches the prescribed pitch; and with a second imaging control means for initiating imaging when it is determined that input of a preview instruction to scan at a coarser pitch than the prescribed pitch has been received, and for completing imaging when it is determined that input of a measurement instruction as an instruction to cancel the preview instruction has been received. | 07-10-2014 |
20140192324 | SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHY SYSTEM - An optical coherence tomography device is disclosed for improved imaging. Reduced levels of speckle in the images generated by the device are obtained by forming a B-scan from a plurality of A-scans, wherein each resolution cell of the B-scan is generated through compounding of a subset of the A-scans and wherein at least some of the subset of A-scans are separated by at least half the diameter of a speckle cell both tangent to and orthogonal to the B-scan at that cell. | 07-10-2014 |
20140198298 | IMAGE STITCHING METHOD AND CAMERA SYSTEM - An image stitching method adapted to stitch a plurality of fundus images of an animal is provided. The image stitching method includes following steps. A plurality of fundus images of the animal are captured, where the fundus images partially overlap. The fundus images are respectively converted into a plurality of grayscale images. The contrasts of the grayscale images are enhanced. The grayscale images with enhanced contrasts are compared to obtain a plurality of stitching data. The fundus images are stitched according to the stitching data. Additionally, a camera system is also provided. | 07-17-2014 |
20140198299 | LENS MODULE AND EYE FUNDUS CAMERA USING THE SAME - A lens module comprises a first lens group, a second lens group and a third lens group, which are arranged from an eye fundus side to an image side in sequence. The first lens group has a positive effective focal length (EFL) and includes a first lens having two convex surfaces respectively facing the eye fundus side and the image side. The second lens group has a positive or negative EFL and includes a plurality of second lenses, wherein the second lens closest to the eye fundus side has a concave surface facing the eye fundus side. The third lens group has a positive EFL and includes a plurality of third lenses, wherein at least one third lens is a cemented lens. The abovementioned lens module decreases the volume of a lens module and reduces the ghosting effect. An eye fundus camera using the abovementioned lens module is also disclosed. | 07-17-2014 |
20140198300 | Ophthalmic Apparatus and Ophthalmic Method - An ophthalmic apparatus includes a fundus image acquisition unit which acquires a plurality of fundus images acquired by imaging fundus of a subject's eye at different times and at least one fundus image that is fewer than the plurality of fundus images and acquired by imaging fundus of the subject's eye at a different time from those for the plurality of fundus images, a unit which generates a new fundus image by averaging the plurality of fundus images, an extraction unit which extracts a feature region from the generated new fundus image, and a unit which tracks the fundus such that positions of a first polarization tomographic image of the fundus corresponding to the new fundus image and a second polarization tomographic image of the fundus corresponding to the at least one fundus image may be corrected based on the extracted feature region and the at least one fundus image. | 07-17-2014 |
20140204337 | Compact foldable apparatus for ophthalmology - There is a need for robust and portable system, and apparatus for ophthalmology. We propose use of folding apparatus for ocular purposes for the first time. Our system will have a chin-rest (or face-rest or forehead rest) that can be folded so that the ocular device could be transported in a brief-case type casing. | 07-24-2014 |
20140204338 | OPHTHALMIC PHOTOGRAPHING APPARATUS AND STORAGE MEDIUM STORING OPHTHALMIC PHOTOGRAPHING PROGRAM - An ophthalmic photographing apparatus includes: an interference optical system configured to acquire a tomographic image of an eye; a processor; and memory storing computer readable instructions, when executed by the processor, causing the ophthalmic photographing apparatus to: control the interference optical system to acquire multiple tomographic images, and store the multiple tomographic images in a storage unit; acquire a composite image based on the multiple tomographic images stored in the storage unit; start a photographing operation for acquiring the multiple tomographic images based on the photographing position; acquire the composite image from the multiple tomographic images which are acquired by the interference optical system and stored in the storage unit until a first operation signal is received during the photographing operation; and transfer a process to a subsequent photographing operation when a second operation signal is received from the operation unit. | 07-24-2014 |
20140204339 | TOPOGRAPH - An adapter ( | 07-24-2014 |
20140211154 | Method and System for Measuring Intraocular Scattering - The present invention relates to a method for measuring ocular scattering, comprising the steps of: sequentially projecting images from an extensive light source, corresponding to different visual angles, onto the retina; recording the output light in a camera or detector once it has passed through the eye twice; calculating the intensity at the center of each recorded image; calculating the PSF for each angle from the previous intensities; and calculating the average of the value of the PSF between the angles. The invention also relates to a system for carrying out said method. The invention can be used to measure the intensity of the scattered light in an objective manner. | 07-31-2014 |
20140211155 | OPTICAL COHERENCE TOMOGRAPHIC IMAGING APPARATUS AND METHOD FOR CONTROLLING THE SAME - An optical coherence tomographic imaging apparatus includes a movement amount acquisition unit configured to acquire the amount of subject's eye movement based on a plurality of images of the subject's eye acquired at different times, a determination unit configured to determine whether the amount of subject's eye movement before a scan by the scanning unit exceeds a threshold value, and a control unit configured to, in a case the amount of subject's eye movement before the scan is equal to or smaller than the threshold value, control the scanning unit to perform scanning position correction between a scan and the next scan based on the amount of movement. | 07-31-2014 |
20140211156 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS AND METHOD FOR CONTROLLING THE SAME - An optical tomographic imaging apparatus includes a measurement light optical path length changing unit configured to change an optical path length of measurement light. In a case where any one of a plurality of imaging regions of an object (for example, a region of an anterior eye of a subject's eye and a region of a fundus of the subject's eye) is selected, the optical tomographic imaging apparatus can control the measurement light optical path length changing unit according to a size of an imaging range of a tomographic image corresponding to the selected imaging region. | 07-31-2014 |
20140211157 | OPTICAL COHERENCE TOMOGRAPHIC IMAGING APPARATUS AND METHOD OF CONTROLLING THE SAME - An optical coherence tomographic imaging apparatus includes a movement amount acquisition unit configured to acquire an amount of rotation of a subject's eye based on a plurality of images of the subject's eye acquired at different times, and a control unit configured to control a scanning unit to correct, based on the acquired amount of rotation, a scanning position between a scan and a next scan performed by the scanning unit. | 07-31-2014 |
20140211158 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS AND METHOD FOR CONTROLLING THE SAME - An optical tomographic imaging apparatus includes an instruction unit configured to issue an instruction on a size of an imaging range of a tomographic image, and a control unit configured to control a measurement light optical path length changing unit to perform alignment in a depth direction with respect an object after the instruction by the instruction unit, and change an optical path length of measurement light by a distance corresponding to a change of the size on which the instruction is issued. | 07-31-2014 |
20140211159 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS AND METHOD FOR CONTROLLING THE SAME - An optical tomographic imaging apparatus includes a control unit configured to, in a case where an instruction to narrow an imaging range of a tomographic image is issued, control a measurement light optical path length changing unit to reduce an optical path length of measurement light and make a changing speed of the optical path length of the measurement light lower than in a case where an instruction to widen the imaging range is issued. | 07-31-2014 |
20140211160 | OPHTHALMOLOGIC APPARATUS AND METHOD FOR CONTROLLING THE SAME - An ophthalmologic apparatus includes an acquisition unit configured to acquire a fundus image of a subject's eye, a displacement acquisition unit configured to acquire the displacement of an imaging position between the fundus images acquired by the acquisition unit, and a display control unit configured to display on a display unit the fundus image acquired by the acquisition unit and a region of interest which is an area where a tomogram of the fundus is captured, in which the display control unit performs display control to display the fundus image and the region of interest on the display unit based on the displacement acquired by the displacement acquisition unit so that the region of interest is positioned at a predetermined position of the fundus image, and stops the display control based on the position of the subject's eye. | 07-31-2014 |
20140211161 | DOUBLE FUNCTION TILTING HEAD OPHTHALMIC INSTRUMENT - Systems for performing sequential multiple function ophthalmic measurements using separate measurement instruments, by mechanical switching between the instruments. In prior art systems, the separate measurement instruments are stacked, and transfer between them is performed by means of a linear mechanical motion stage. The separate measurement instruments of the present application are mounted on a base which is rotatably pivoted around a joint at a location remote from the optical entry apertures of the instruments. The entrance apertures of the measurement instruments then traverse the eye being measured sequentially. A rotational motion around the pivoted joint is thus transformed into a linear motion at the eye of the subject, without the need for a linear motion stage. A Scheimpflug camera corneal thickness measurement is also described, in which the measurement head is tilted during the corneal scan such that the illuminating slit beam always impinges on the cornea normally. | 07-31-2014 |
20140218683 | AUTOMATED DETECTION OF UVEITIS USING OPTICAL COHERENCE TOMOGRAPHY - Systems and methods for automatically detecting, classifying and quantifying clumps indicative of inflammation in the eye using optical coherence tomography images are described. Clump detection relies on both intensity and geometric thresholding. Applications of the invention include improved diagnosis, classification and monitoring of inflammatory disease. | 08-07-2014 |
20140218684 | SYSTEMS AND METHODS FOR SUB-APERTURE BASED ABERRATION MEASUREMENT AND CORRECTION IN INTERFEROMETRIC IMAGING - Systems and methods for sub-aperture correlation based wavefront measurement in a thick sample and correction as a post processing technique for interferometric imaging to achieve near diffraction limited resolution are described. Theory, simulation and experimental results are presented for the case of full field interference microscopy. The inventive technique can be applied to any coherent interferometric imaging technique and does not require knowledge of any system parameters. In one embodiment of the present invention, a fast and simple way to correct for defocus aberration is described. A variety of applications for the inventive method are presented. | 08-07-2014 |
20140218685 | EYE REFRACTIVE POWER MEASURING APPARATUS - An eye refractive power measuring apparatus includes: a measuring part configured to project measurement light onto a fundus of an examinee's eye and measure refractive power of the eye based on reflection light of the measurement light from the fundus; a fixation target presenting part configured to present a fixation target to the eye; a drive part configured to move a presenting position of the fixation target; and a control part configured to control the drive part to move the presenting position from far distance to near distance, the apparatus being configured to measure the eye refractive power in at least a far position and a near position, wherein the control part controls the drive part to change a control amount thereof based on a change in measurement results of the eye refractive power while the fixation target is moved from the far distance to the near distance. | 08-07-2014 |
20140218686 | ATTENUATION-BASED OPTIC NEUROPATHY DETECTION WITH THREE-DIMENSIONAL OPTICAL COHERENCE TOMOGRAPHY - Optical coherence tomography (OCT) scan data of a subject is acquired over a region of interest which can include an optic disc or a macula of a retina. Layer boundaries of retinal layers are identified in the OCT scan data to facilitate measurements. In one aspect, a measurement related to ratio value between a total backscattered signal intensity of one or more target layers of the retina and a total backscattered signal intensity of one or more reference layers is computed on a location-by-location basis within a region of interest of the OCT scan data. Measurements can be collected, aggregated, analyzed, and displayed in connection with other information taken or derived from the OCT scan data. | 08-07-2014 |
20140232984 | DEFORMABLE MIRROR AND METHOD FOR MANUFACTURING THE SAME - A deformable mirror includes a mirror substrate having a continuous reflective surface and a plurality of actuators connected to the mirror substrate at a plurality of coupling portions. In the deformable mirror, the mirror substrate has first regions and a second region thicker than the first regions and the first regions are formed around the coupling portions. | 08-21-2014 |
20140232985 | Self-Illuminated Handheld Lens for Retinal Examination and Photography and Related Method thereof - System and method directed towards providing full and even illumination of a patient's retina through lighting integrated into a handheld fundus lens. By integrating the lighting, the method and system reduces and even eliminate many lens artifacts and reflections. By increasing the accuracy, quality, and field of view afforded during clinical examination of the retina, the method and system will allow practitioners to make more accurate diagnoses and will increase safety during retinal surgical procedures. | 08-21-2014 |
20140232986 | OPTICAL ARRANGEMENT AND METHOD FOR ASCERTAINING THE ORIENTATION OF AN ARTIFICIAL LENS - An optical arrangement for ascertaining the orientation of an artificial lens in an eye comprises an observation beam path with an imaging optical system, at least two light-emitting test objects with a defined contour, and one collimation optical system paired with each test object for collimating the light pattern emanating from the test object in a collimation beam path that is directed at the eye. The imaging optical system is designed such that said optical system has multiple observation beam paths with different imaging properties in order to simultaneously image multiple reflected light patterns from different depths of the eye, or the imaging properties of the observation beam paths can be adjusted in a variable manner in order to be able to sharply image sequentially reflected light patterns from different depths. | 08-21-2014 |
20140232987 | DEVICE AND METHOD FOR IMAGING AN OCULAR FUNDUS - An appliance for recording an image of an ocular fundus includes an irradiating device with a radiation source and optical components for generating an illumination strip. A scanning device is set up to cause a scanning movement of the illumination strip for the purpose of scanning the ocular fundus. An optoelectronic sensor senses detection light issuing from the ocular fundus. The optoelectronic sensor has a plurality of sensor rows and is set up such that charges contained in one sensor row are each shifted, with a time delay, into a further sensor row. A control means is connected to the scanning device and/or to the optoelectronic sensor and is set up to control the scanning movement and/or the time delay. | 08-21-2014 |
20140232988 | Apparatus for Monitoring One or More Parameters of the Eye - An apparatus for monitoring one or more parameters of the eye of a patient over multiple sessions which are temporally spaced apart and between which the eye of the patient can have moved, said apparatus comprising: a camera for taking one or more images of the eye; an illumination unit for illuminating the eye by a ring-shaped light pattern to generate corneal reflections, said illumination unit being preferably located such that the center of the ring is coaxial with the optical axis of the camera; a module for determining during a first session the location of the corneal reflections in the image of the eye; a module for determining during said first session based on said determined location of the corneal reflections, at least one further parameter of the eye and its coordinates in a first coordinate system based on a geometrical model representing the eye as a spherical eyeball having a spherically shaped cornea mounted thereon; a module for determining during a second session temporally spaced apart from said first session said location of said corneal reflections of the eye and based thereon said further eye parameter and its coordinates in a second coordinate system; a module for determining the eye motion in six degrees of freedom between said first and said second session and for determining a coordinate transformation based thereon; a module for transforming based on said determined eye motion said further eye parameter and its coordinates from said first coordinate system into said second coordinate system; a module for quantifying and/or visualizing the change of said further eye parameter between said first and said second session based on said further parameter and its coordinates measured during said second session and said transformed parameter and its coordinates measured during said first session. | 08-21-2014 |
20140240666 | OCULAR FUNDUS INFORMATION ACQUISITION DEVICE, METHOD AND PROGRAM - An ocular fundus information acquisition device includes: a fixation target provision section configured to provide a continuously moving fixation target; an ocular fundus image acquisition section configured to acquire an image of an ocular fundus in a subject's eye while the subject is closely watching the continuously moving fixation target; and an ocular fundus information acquisition section configured to acquire ocular fundus information from the acquired ocular fundus image. | 08-28-2014 |
20140240667 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus obtains a moving image of an eye area, identifies a region of blood cells in the obtained moving image, and determines the number of determined regions of blood cells. | 08-28-2014 |
20140240668 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus obtains an image of an eye area, determines a measurement target among multiple vascular branches based on information regarding multiple vascular branches that include multiple vascular bifurcations in the obtained image, and measures the size of a blood cell aggregate in the determined measurement target. | 08-28-2014 |
20140240669 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus obtains a plurality of moving images of a predetermined site of an eye, specifies a vascular region by using at least one moving image of the plurality of moving images, and measures the sizes of blood cell aggregates in a specific vascular branch in the specified vascular region for each moving image of the plurality of moving images. | 08-28-2014 |
20140240670 | METHOD OF MOTION CORRECTION IN OPTICAL COHERENCE TOMOGRAPHY IMAGING - An image data set acquired by an optical coherence tomography (OCT) system is corrected for effects due to motion of the sample. A first set of A-scans is acquired within a time short enough to avoid any significant motion of the sample. A second more extensive set of A-scans is acquired over an overlapping region on the sample. Significant sample motion may occur during acquisition of the second set. A-scans from the first set are matched with A-scans from the second set, based on similarity between the longitudinal optical scattering profiles they contain. Such matched pairs of A-scans are likely to correspond to the same region in the sample. Comparison of the OCT scanner coordinates that produced each A-scan in a matching pair, in conjunction with any shift in the longitudinal scattering profiles between the pair of A-scans, reveals the displacement of the sample between acquisition of the first and second A-scans in the pair. Estimates of the sample displacement are used to correct the transverse and longitudinal coordinates of the A-scans in the second set, to form a motion-corrected OCT data set. | 08-28-2014 |
20140240671 | METHODS AND APPARATUSES FOR DETERMINING CONTACT LENS INTOLERANCE IN CONTACT LENS WEARER PATIENTS BASED ON DRY EYE TEAR FILM CHARACTERISTIC ANALYSIS AND DRY EYE SYMPTOMS - Methods and apparatuses for determining contact lens intolerance in contact lens wearer patients based on tear film characteristics analysis and dry eye symptoms are disclosed. In embodiments herein, imaging of the ocular tear film is performed during contact lens wear. An analysis of the image of the ocular tear film is performed to determine one or more tear film characteristics of the ocular tear film. The tear film characteristics can be used to determine the effect or possible effect of contact lens wear on the ocular tear film, and thus be used to determine contact lens intolerance of the patient. The tear film characteristics used to analyze contact lens intolerance based on images of the ocular tear film involving contact lens wear may include dry eye symptoms, including but not limited to tear film (e.g., lipid and/or aqueous) thickness, tear film viscosity, and tear film movement rate in the eye. | 08-28-2014 |
20140240672 | LIGHT INTENSITY CONTROL APPARATUS, LIGHT INTENSITY CONTROL METHOD, PROGRAM, AND OPHTHALMOLOGIC APPARATUS - Provided is a light intensity control apparatus including: a photometry value calculation portion for measuring reflected light from a fundus under illumination of an observation light source; an observation light source control portion for controlling a light intensity of the observation light source based on photometry information obtained by the photometry value calculation portion, the light intensity of the observation light source obtained in the measurement, and a correction value of the light intensity of the observation light source; and a photographing light source control portion for controlling a light intensity of a light source of a photographing light source based on the photometry information obtained by the photometry value calculation portion, the light intensity of the observation light source obtained in the measurement, and a correction value of the light intensity of the photographing light source. | 08-28-2014 |
20140247425 | Multi-Functional Adaptive Optics Retinal Imaging - An optical apparatus includes a system of optical components capable of operating in a scanning laser ophthalmoscope (SLO) mode and an optical coherence tomography (OCT) mode. The system of optical components includes a first optical module for the SLO mode, a second optical module for the OCT mode, and a first scanning device. The first optical module for the SLO mode includes a first source adapted to provide a first imaging beam for the SLO mode and a first detection device configured to receive a first signal associated with a first image of a retina of an eye. The second optical module for the OCT mode includes a second source adapted to provide a second imaging beam for the OCT mode and a second detection device configured to receive a second signal associated with a second image of the retina. The first scanning device is configured to move the first imaging beam along the retina in the slow axis of the SLO mode to acquire the first image and (ii) to move the second imaging beam along the retina in the fast axis of the OCT mode to acquire the second image. | 09-04-2014 |
20140247426 | IMAGING APPARATUS AND IMAGING METHOD USING OPTICAL COHERENCE TOMOGRAPHY - Provided is an imaging apparatus using Fourier-domain optical coherence tomography, the imaging apparatus removing noises caused by the autocorrelation component of returning light to obtain a high-resolution tomographic image. A first switching unit | 09-04-2014 |
20140268038 | SYSTEMS AND METHODS FOR VARIABLE DEPTH OPTICAL COHERENCE TOMOGRAPHY IMAGING - Systems and methods for variable depth optical coherence tomography (OCT) imaging with a swept laser source are presented. Swept-source OCT data acquired at two different spectral resolutions is resampled using information on the wavenumber nonlinearity of the source to generate OCT images at two different depths. | 09-18-2014 |
20140268039 | SYSTEMS AND METHODS FOR VARIABLE MODE OPTICAL COHERENCE TOMOGRAPHY IMAGING - Systems and methods for improvements to optical coherence tomography systems for operating in different imaging modes are presented. In one embodiment, a system for identifying the presence and type of an adjunct lens operably connected to the OCT instrument for changing between imaging modes in the system is described. In a second embodiment, a system for dynamically autofocusing the OCT system depending on the layer of interest is presented. In a third embodiment, the overall power of the system used for imaging can be adjusted depending on the location and type of scan desired while accounting for the safety standards for recommended light exposure. | 09-18-2014 |
20140268040 | Multimodal Ocular Imager - An imaging probe for imaging a sample includes at least one light source that provides light to a sample. The imaging probe also includes a first imaging objective that focuses a first light reflected from the sample and a second light reflected from the sample, such that the first light and the second light share at least a portion of an imaging path. The imaging probe also includes a first optical component that receives the first light and the second light from the first imaging objective, directs the first light towards an imaging camera to obtain a first image of the sample, and directs the second light toward an optical coherence tomography (OCT) imaging apparatus to obtain a second image of the sample. | 09-18-2014 |
20140268041 | SYSTEM AND METHOD FOR OCULAR TOMOGRAPHY USING PLENOPTIC IMAGING - Improved systems and methods for ocular tomography are provided. These systems and methods can be used to improve the effectiveness of a wide variety of different ophthalmic diagnostic procedures, and various surgical and non-surgical treatments. One embodiment provides a system and method for determining ocular tomography data for the eye using a plenoptic detector. For example, an ocular tomography system can comprise a set of light sources configured to illuminate an eye, a plenoptic detector configured to receive images of the light sources reflected from surfaces of the eye and generate plenoptic image data representing the images, and a processing system coupled to the plenoptic detector. The processing system is configured to analyze the plenoptic image data to determine tomography data for the eye. | 09-18-2014 |
20140268042 | SYSTEM AND METHOD FOR EYE ORIENTATION - Systems and methods for locating the center of a lens in the eye are provided. These systems and methods can be used to improve the effectiveness of a wide variety of different ophthalmic procedures. In one embodiment, a system and method is provided for determining the center of eye lens by illuminating the eye with a set of light sources, and measuring the resulting first image of the light sources reflected from an anterior surface of the lens and the resulting second image of the light sources reflected from a posterior surface of the lens. The location of the center of the lens of the eye is then determined using the measurements. In one embodiment, the center of the lens is determined by interpolating between the measures of the images. Such a determination provides an accurate location of the geometric center of the lens. | 09-18-2014 |
20140268043 | SYSTEM AND METHOD FOR CORNEAL PACHYMETRY USING PLENOPTIC IMAGING - Embodiments described herein provide improved systems and methods for corneal pachymetry. These systems and methods can be used to improve the accuracy of corneal measurements that are used for a wide variety of different ophthalmic procedures. One embodiment provides a system and method for corneal pachymetry using a plenoptic detector. For example, a corneal pachymetry system can comprise a light source, a plenoptic detector and a processing system coupled to the plenoptic detector. The light source is configured to illuminate the cornea of the eye, and the plenoptic detector is positioned at an angle relative to the eye. The plenoptic detector is configured to receive an image of the light source reflected from the cornea and generate plenoptic image data representing the images. The processing system is coupled to the plenoptic detector and is configured to analyze the plenoptic image data to accurately determine the corneal thickness of the eye. | 09-18-2014 |
20140268044 | SYSTEM AND METHOD FOR OCULAR ABERROMETRY AND TOPOGRAPHY USING PLENOPTIC IMAGING - Improved systems and methods for ocular topography and using a plenoptic detector are provided. For example, a multifunction ocular topography and aberrometry system can comprise a first set of light sources, a second light source, a plenoptic detector and a processing system coupled to the plenoptic detector. The first set of light sources and the second light source are configured to selectively illuminate an eye. The plenoptic detector is configured to selectively receive images of the first set of light sources reflected from a corneal surface of the eye and generate first plenoptic image data representing the images of the first set of light sources. The plenoptic detector is further configured receive images of the second light source reflected from a retina of the eye and generate second plenoptic image data representing the images of the second light source. | 09-18-2014 |
20140268045 | SYSTEMS AND METHODS FOR MEASURING POSITION AND BOUNDARY OF LENS CAPSULE AND IMPLANTED INTRAOCULAR LENS IN EYE IMAGING - Embodiments of this invention generally relate to systems and methods for eye imaging, and more particularly to measuring the size and position of the lens capsule and of the implanted intraocular lens. In one embodiment, a method for measuring the size and position of the lens capsule and of the implanted intraocular lens comprises generating and emitting one or more light beams at an angle adjacent to the eye, generating one or more eye images, and detecting the position and/or boundary of a lens capsule from its shadow casted by reflected light on the iris. | 09-18-2014 |
20140268046 | SYSTEMS AND METHODS FOR IMPROVED ACQUISITION OF OPHTHALMIC OPTICAL COHERENCE TOMOGRAPHY DATA - Systems and methods for improved acquisition of ophthalmic optical coherence tomography data are presented, allowing for enhanced ease of use and higher quality data and analysis functionality. Embodiments include automated triggering for detecting and initiating collection of OCT ophthalmic data, an automated technique for determining the optimal number of B-scans to be collected to create the highest quality image and optimize speckle reduction, automated review of fundus images collected with an adjunct imaging modality to guide the OCT data collection, a single scan protocol in which a large field of view is collected with HD B-scans embedded at different locations depending on automated analysis of either a fundus image or sparse OCT scan, and various scan configurations for imaging eyes with large axial depth range. | 09-18-2014 |
20140268047 | APPARATUS AND METHOD FOR ASSESSING EFFECTS OF DRUGS BY RECORDING OCULAR PARAMETERS - The invention is directed to quantification of the effects of drugs on a patient using pupillometric measures. Apparatus and processes for obtaining control and patient measures and deriving relationships from same are provided. The methods of the invention provide doctor quantitative feedback on patient symptoms and on the effects of a drug or dosage of same on a patient, as well as provide assessment capability to patients as and law enforcement | 09-18-2014 |
20140268048 | IMAGE PROCESSING DEVICE, IMAGE PROCESSING SYSTEM, IMAGE PROCESSING METHOD, AND PROGRAM - A new tomographic image is generated using a reverse image in which at least one portion of a tomographic image of a retina of an eye to be examined is reversed and the tomographic image so that the reverse image is located on a side on which the retinal layer in the tomographic image is in contact with an end of the tomographic image. | 09-18-2014 |
20140268049 | METHOD FOR DETECTING A DISEASE BY ANALYSIS OF RETINAL VASCULATURE - A method for detecting a disease such as Alzheimer's disease by analysis of retinal vasculature is disclosed. The method for detecting a disease by analysis of retinal vasculature may include applying a combination of optical retro mode illumination techniques to acquire a plurality of amyloid beta plaques and drusen images that are too small to be seen with other imaging modalities. The disease may also be detected with a non-transitory computer storage media having instructions stored thereon which, when executed, execute the method for detecting a disease by analysis of retinal vasculature. The method may track changes in lumen thickness, plaque, size, area and density of the disease by analysis of retinal vasculature over a predetermined period of time. | 09-18-2014 |
20140268050 | TUNABLE LASER ARRAY SYSTEM - A system for swept source optical coherence tomography, the system including a light source emitting multiplexed wavelength-swept radiation over a total wavelength range, the light source including N wavelength-swept vertical cavity lasers (VCL) emitting N tunable VCL outputs having N wavelength trajectories, a combiner for combining the N tunable VCL optical outputs into a common optical path to create the multiplexed wavelength-swept radiation, a splitter for splitting the multiplexed wavelength-swept radiation to a sample and a reference path, an optical detector for detecting an interference signal created by an optical interference between a reflection from the sample and light traversing the reference path, and a signal processing system which uses the interference signal to construct an image of the sample, wherein at least one of the N wavelength trajectories differs from another of the N wavelength trajectories with respect to at least one parameter. | 09-18-2014 |
20140268051 | STRABISMUS DETECTION - A method for detecting strabismus in at least one image comprising a subject's eyes, wherein the at least one image has been obtained using an apparatus comprising a light source and a target offset from the light source, the method comprising, for each of the subject's left and right eyes: determining, from the image, a reflection offset distance, being the distance between a reference point of the eye and a reflection of a light source on the eye; determining a difference between the reflection offset distance and a reference reflection offset distance for the corresponding left or right eye, wherein the reference reflection offset distance has been determined based on relative positions of the light source, the target and the subject's head; and determining whether the difference is less than a difference threshold value for determining whether the subject has a strabismus. | 09-18-2014 |
20140285766 | PORTABLE DEVICE FOR INDIRECT OPHTHALMOLOGY - A device for examining at least one selected portion of an eye of a subject and including a camera detachably mounted on a camera mounting unit. The camera includes an illuminating source, which generates illuminating radiation for irradiating the at least one portion of the eye thereby enabling the camera to generate a plurality of images of the at least one portion of the eye. The device also includes a first lens assembly detachably mounted on an adjustable lens holder and selected to focus the illuminating radiation towards the at least one portion of the eye as well as focusing radiation reflected from the at least one portion of the eye towards an entrance pupil of the camera. An extendible support arm supports the camera and the adjustable lens holder at a first distance between the camera and the first lens assembly. Subsequent to adjusting the first distance to correspond to a diopter value of the selected first lens assembly, the illuminating source irradiates the at least one portion of the eye and subsequent thereto the camera generates the plurality of images of the at least one portion of the eye. | 09-25-2014 |
20140285767 | OCULAR SURFACE INTERFEROMETRY (OSI) DEVICES AND SYSTEMS FOR IMAGING, PROCESSING, AND/OR DISPLAYING AN OCULAR TEAR FILM - Ocular surface interferometry (OSI) devices, systems, and methods are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). The measured TFLT can be used to diagnosis dry eye syndrome (DES). In certain disclosed embodiments, a multi-wavelength light source can be controlled to illuminate the ocular tear film. Light emitted from the multi-wavelength light source undergoes optical wave interference interactions in the tear film. An imaging device can be focused on the lipid layer of the tear film to capture optical wave interference interactions of specularly reflected light from the tear film combined with a background signal(s) in a first image. The imaging device can also be focused on the lipid layer of the tear film to capture a second image containing the background signal(s) present in the first image. The second image can be subtracted from the first image to reduce and/or eliminate the background signal(s) in the first image to produce a resulting image. The resulting image can be processed and analyzed to measure a tear film layer thickness (TFLT), including lipid layer thickness (LLT) and/or aqueous layer thickness (ALT). | 09-25-2014 |
20140285768 | System and Method for Identifying Eye Conditions - An electronic device comprising a processor utility configured and operable for processing image data, determining whether an abnormality exists in an image of a subject's eye, and generating corresponding output data, said processor utility comprising: a first processor configured and operable for selecting in the image data an image comprising a region of interest including predetermined eye features of at least one of two eyes of the subject, the first processor further configured and operable for pre-processing the image to determine whether it is suitable for image processing and for providing an indication of the determined suitability of the image; an eye feature detection utility configured and operable for applying an image processing algorithm to a suitable image for determining one or more parameters of the eye features from a set of predetermined parameters; and an eye condition identifier utility configured and operable for processing and analyzing said one or more parameters and generating data indicative of whether an abnormality exists in the image. | 09-25-2014 |
20140293222 | USER INTERFACE FOR ACQUISITION, DISPLAY AND ANALYSIS OF OPHTHALMIC DIAGNOSTIC DATA - Improvements to user interfaces for ophthalmic imaging systems, in particular Optical Coherence Tomography (OCT) systems are described to improve how diagnostic data are displayed, analyzed and presented to the user. The improvements include user customization of display and reports, protocol driven work flow, bookmarking of particular B-scans, accessing information from a reference library, customized normative databases, and ordering of follow-up scans directly from a review screen. A further aspect is the ability to optimize the contrast and quality of displayed B-scans using a single control parameter. Virtual real time z-tracking is described that maintains displayed data in the same depth location regardless of motion. | 10-02-2014 |
20140293223 | Optical Coherence Tomography (OCT) Imaging Systems Having Adaptable Lens Systems and Related Methods and Computer Program Products - OCT imaging systems are provided for imaging a spherical-type eye including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path. The reference arm path has an associated reference arm path length. A sample is also provided having an associated sample arm path coupled to the source arm and reference arm paths. A lens having a focal power optimized for a diameter of the spherical-type eye is provided along with a reference arm path length adjustment module coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye diameter of the subject. | 10-02-2014 |
20140293224 | Surgical Microscopes Using Optical Coherenece Tomography and Related Systems - Some embodiments of the present inventive concept provide optical coherence tomography (OCT) systems for integration with a microscope. The OCT system includes a sample arm coupled to the imaging path of a microscope. The sample arm includes an input beam zoom assembly including at least two movable lenses configured to provide shape control for an OCT signal beam; a scan assembly including at least one scanning mirror and configured for telecentric scanning of the OCT signal beam; and a beam expander configured to set the OCT signal beam diameter incident on the microscope objective. The shape control includes separable controls for numerical aperture and focal position of the imaged OCT beam. | 10-02-2014 |
20140300861 | EYE OBSERVATION APPARATUS - An eye observation apparatus includes a non-translucent peripheral frame member, a cylindrical light-transmitting member, and an imaging unit. The peripheral frame member includes a tight-fit inner cylindrical surface and a clearance-fit inner cylindrical surface. The cylindrical light-transmitting member includes a tight-fit outer cylindrical surface and a clearance-fit outer cylindrical surface, the tight-fit and clearance-fit outer cylindrical surfaces being coaxial with the tight-fit and clearance-fit inner cylindrical surfaces of the peripheral frame member. A radial clearance between the clearance-fit inner cylindrical surface of the peripheral frame member and the clearance-fit outer cylindrical surface of the cylindrical light-transmitting member is greater than a radial clearance between the tight-fit inner cylindrical surface of the peripheral frame member and the tight-fit outer cylindrical surface of the cylindrical light-transmitting member. | 10-09-2014 |
20140300862 | INDICES FOR MANAGEMENT OF DRY EYE SYNDROME, CORNEAL ECTASIA, KERATOPLASTY GRAFT REJECTION AND FAILURE AND FUCHS' DYSTROPHY - Improved indices for the diagnosis and evaluation of conditions affecting the eye. Specifically, the indices include an Enhanced Epithelial Irregularity Factor (eEIF) for the diagnosis and evaluation of conditions such as dry eye syndrome (DES), Bowman's Ectasia Index (BEI), including enhanced BEI (eBEI) and BEI-Max, and Bowman's Relative Thinning (BRT) Index for the diagnosis and evaluation of ectatic conditions such as keratoconus, pellucid marginal degeneration, post-refractive surgery ectasia, and keratoglobus, and Descemet's Membrane Thickening Index (DMT), Descemet's Rejection Index (DRI), and Descemet's Membrane Irregularity Factor (DIF) for the diagnosis and evaluation of conditions such as keratoplasty rejection and failure and Fuchs' dystrophy. These improved indices may be incorporated into optical coherence tomography systems, or any other imaging device capable of capturing high resolution images of the cornea, for more sensitive and specific diagnosis, treatment, and monitoring of certain corneal conditions, in addition to the evaluation of new treatments. | 10-09-2014 |
20140300863 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus of an embodiment includes an examination part, a moving mechanism, an information obtaining part, and a controller. The examination part is configured to include an optical system for optically examining an eye. The moving mechanism is configured to move the optical system. The information obtaining part is configured to obtain information for carrying out position matching of the optical system to the eye. The controller is configured to carry out first control for the moving mechanism based on the information obtained by the information obtaining part to move the optical system, determine whether information optically obtained by the optical system after the first control is appropriate to the examination or not, and when it is determined that this information is not appropriate, carry out second control for the moving mechanism in response to a prescribed trigger to move the optical system. | 10-09-2014 |
20140300864 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus of an embodiment includes an acquiring part, a first optical system, a forming part and a controller. The acquiring part acquires a first front image of an eye fundus. The first optical system scans the fundus by signal light and detects interference light of returned light of the signal light and reference light. The forming part repeatedly forms a second front image of the fundus and a cross sectional image showing a cross section perpendicular to the second front image based on the detection results repeatedly obtained by the first optical system. The controller displays the first front image on a display means, displays, as a moving image, the second front images repeatedly formed by the forming part over the first front image, and displays, as a moving image, the cross sectional images repeatedly formed by the forming part. | 10-09-2014 |
20140300865 | OPHTHALMIC PHOTOGRAPHING APPARATUS AND METHOD OF CONTROLLING THE SAME - An ophthalmic photographing apparatus or method receives light returned from an eye to be examined, calculates a plurality of temporally continuous photometric values based on a light receiving result in the receiving, and determines whether or not the eye is to be photographed, based on the plurality of calculated photometric values. | 10-09-2014 |
20140307226 | OPTICAL COHERENCE TOMOGRAPHY AS A RAPID, ACCURATE, NON-CONTACT METHOD OF VISUALIZING THE PALISADES OF VOGT - The innovation provides for a system and method available to image and visualize the palisades of Vogt via a non-contact process, analyze the image volumes acquired, evaluate the status of the palisades of Vogt from the data represented therein, and display the data in real-time or as a part of a medical record for ongoing consideration and evaluation. | 10-16-2014 |
20140307227 | OPHTHALMIC OBSERVATION APPARATUS AND METHOD OF USING THE SAME - An ophthalmic observation apparatus includes an illumination light supplier which supplies illumination light, of substantially parallel light rays, toward an examinee's eye including an eyeground and an anterior chamber angle, an imager which captures an image of the eye which is illuminated by the illumination light, a rotary driver which rotates the illumination light supplier and the imager about a specified center, a cornea curvature measurer which measures a curvature of a cornea of the examinee's eye, and a controller which sets a curvature center of the cornea as the specified center based on the measured curvature of the cornea. The controller drives the rotary driver to rotate the illumination light supplier and the imager about the specified rotational center and controls the imager to capture an image of the eyeground and the anterior chamber angle illuminated by the illumination light. | 10-16-2014 |
20140313477 | ANGULAR MULTIPLEXED OPTICAL COHERENCE TOMOGRAPHY SYSTEMS AND METHODS - Angle multiplexed optical coherence tomography systems and methods can be used to evaluate ocular tissue and other anatomical structures or features of a patient. | 10-23-2014 |
20140313478 | OPHTHALMOLOGIC IMAGING APPARATUS, METHOD OF CONTROLLING THE SAME, AND PROGRAM - There is provided an inexpensive ophthalmologic imaging apparatus having favorable operability in anterior ocular segment imaging and fundus imaging. In an ophthalmologic imaging apparatus which includes a focus lens located in an optical system, a focus lens drive unit configured to drive the focus lens, and a focusing operation unit configured to designate the drive amount of the focus lens, and has a fundus imaging mode of imaging a fundus and an anterior ocular segment imaging mode of imaging an anterior ocular segment, the drive amount of the focus lens by the focus lens drive unit is changed in accordance with a selected imaging mode and a focusing operation amount in the focusing operation unit. | 10-23-2014 |
20140313479 | FUNDUS IMAGING APPARATUS AND IMAGING METHOD - Provided is an imaging method for correcting aberration generated when imaging an object to be inspected. The imaging method includes: irradiating an imaging area with a first light beam which is scanned by a scan unit and taking an image of the object to be inspected based on return light of the first light beam; detecting a moving amount of the object to be inspected; comparing the detected moving amount with a predetermined threshold value; and adjusting the imaging area to be irradiated with the first light beam. The adjusting includes determining in accordance with a result of the comparison to change the imaging area by at least one of: using the scan unit, and using an aberration correcting unit. | 10-23-2014 |
20140313480 | OPHTHALMIC DEVICE, AND CONTROL METHOD AND PROGRAM THEREFOR - An ophthalmic device includes an acquisition unit configured to acquire a transillumination image of a pupil of a subject eye, and a determining unit configured to determine whether or not the subject eye includes an intraocular lens, based on the acquired transillumination image. | 10-23-2014 |
20140313481 | OPHTHALMIC APPARATUS - An ophthalmic apparatus for guiding positioning an intraocular lens for astigmatism correction, includes: an obtaining unit for obtaining an anterior segment image of a patient's eye and an astigmatic axis of a patient's cornea; a feature point designating unit for defining a feature point of an iris or a sclera on the anterior segment image; and a display control unit for superimposing and displaying a gauge image that models a cornea gauge and an axis that represents the astigmatic axis of the cornea on the anterior segment image. | 10-23-2014 |
20140313482 | ASSESSMENT OF MICROVASCULAR CIRCULATION - Methods and compositions are disclosed to quantitatively measure in vivo blood vessel diameter, blood velocity, and other flow dynamics. Such methods and compositions can optimize therapeutic interventions designed to prevent or reduce the risk of cardiovascular and blood disorders. In one aspect, the methods and apparatus involve calculating blood vessel characteristics from a two dimensional image of a blood vessel in the conjunctiva of a subject's eye. In another aspect, a series of temporal images of a blood vessel are obtained to determine blood flow properties. The apparatus can include, for example, a biomicroscope, an illuminating light source and a high speed camera to acquire the series of temporal images with the data then analyzed by a programmed processor. | 10-23-2014 |
20140320807 | Method, system and device for providing customized point of care testing - A method, system and device for providing Point of Care Testing (POCT) are disclosed. The POCT comprises of a device that enables the patient to self conduct plurality of diagnostic tests for a chronic disease such as diabetes mellitus. The method is modular and enables the user to select set of tests from comprehensive list of diagnostic tests. The device provides a strip port to enable testing of various biochemical parameters. Also, the device comprises an ophthalmoscope with a built-in camera to capture images of the retina, a set of piezoelectric sensors for measuring pulse wave velocity (PWV), a pair of electrodes for measuring skin impedance. The method enables the device to log on the test data for future use and analysis. The device can be used for frequent monitoring of health parameters of a user suffering from diabetes mellitus. | 10-30-2014 |
20140320808 | METHOD AND APPARATUS FOR SYSTEM SYNCHRONIZATION IN VIDEO OCULOGRAPHY BASED NEURO-OTOLOGIC TESTING AND EVALUATION - A video oculography based neuro-otologic testing and evaluation apparatus and associated method comprises the steps of: Obtaining images of the subject's eyes with a digital camera; Selectively displaying visual stimulus to the subject on a display; Generating each visual stimulus to be displayed from a controller; Receiving and storing data signals from each digital camera in the controller; Calculating eye related data from the digital camera images and visual stimulus; Displaying the eye related data to users; Generating a video synchronization signal by the controller associated with each visual stimulus which identifies when the display is displaying the associated visual stimulus; Receiving and coupling the video synchronization signal with at least the eye data from the digital camera; and Synchronizing calculations based upon the eye data and the visual stimulus by the controller. | 10-30-2014 |
20140320809 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus of an embodiment includes an examination part, a moving mechanism, an information obtaining part, and a controller. The examination part is configured to include an optical system for optically examining an eye. The moving mechanism is configured to move the optical system. The information obtaining part is configured to obtain information for carrying out position matching of the optical system to the eye. The controller is configured to carry out first control for the moving mechanism based on the information obtained by the information obtaining part to move the optical system, determine whether information optically obtained by the optical system after the first control is appropriate to the examination or not, and when it is determined that this information is not appropriate, carry out second control for the moving mechanism in response to a prescribed trigger to move the optical system. | 10-30-2014 |
20140320810 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus of an embodiment includes an acquiring part, a first optical system, a forming part and a controller. The acquiring part acquires a first front image of an eye fundus. The first optical system scans the fundus by signal light and detects interference light of returned light of the signal light and reference light. The forming part repeatedly forms a second front image of the fundus and a cross sectional image showing a cross section perpendicular to the second front image based on the detection results repeatedly obtained by the first optical system. The controller displays the first front image on a display means, displays, as a moving image, the second front images repeatedly formed by the forming part over the first front image, and displays, as a moving image, the cross sectional images repeatedly formed by the forming part. | 10-30-2014 |
20140320811 | OPTICAL APPARATUS AND OPERATING METHOD THEREOF - An optical apparatus applied to ophthalmology detection is disclosed. The optical apparatus includes an image capturing unit, a data comparing unit, a detection unit, a location determining unit, and a data output unit. The image capturing unit captures images of different portions of a face of a person to be tested to obtain a plurality of face images. The data comparing unit compares the plurality of face images with a built-in database. The detection unit detects on an eye of the person to be tested. The location determining unit automatically determines whether the eye detected by the detection unit is left-eye or right-eye. The data output unit selectively outputs a detection result of the detection unit, a comparing result of the data comparing unit, and/or a determining result of the location determining unit. | 10-30-2014 |
20140320812 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS - An optical tomographic imaging apparatus includes a first lens, a second lens and a scanning unit on an optical path of measurement light that irradiates an object to be examined. The second lens has a focal length longer than a focal length of the first lens. A portion of the object to be examined is disposed at a focal position of the first lens, and the scanning unit is disposed at a focal position of the second lens. The scanning unit scans the measurement light via the second lens with a smaller angle than an angle at which the measurement light irradiates the object to be examined via the first lens. | 10-30-2014 |
20140320813 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS - An optical tomographic imaging apparatus includes a first lens, an optical path branching unit, a second lens and a scanning unit disposed on an optical path of measurement light with which an object to be examined is irradiated. The second lens and the scanning unit are disposed in such a manner that an angle at which the measurement light scanned by the scanning unit is incident on the optical path branching unit satisfies a wavelength separation characteristic of 90% or higher at a wavelength of observation light of the object to be examined in a wavelength band of the measurement light. | 10-30-2014 |
20140320814 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS - An optical tomographic imaging apparatus includes a first lens having a first focal length, a second lens having a second focal length longer that the first focal length, a scanning unit disposed at a focal position of the second lens, and an optical path branching unit disposed between the first and second lenses. An observation optical path located on a transmission optical path of the optical path branching unit, and an optical path of measurement light located on a reflection optical path of the optical path branching unit. The second lens is disposed on the optical path of the measurement light between the first lens and the scanning unit, such that an angle at which the measurement light scanned by the scanning unit is incident on the optical path branching unit is maintained substantially unchanged during scanning. | 10-30-2014 |
20140320815 | Method And Analysis System For Eye Examinations - An ophthalmological analysis system for examining an eye, in particular in the region of a front eye section of an eye includes first and second analysis systems obtaining sectional images of the eye. The first analysis system includes a projection device and a monitoring device arranged relative to each other according to the Scheimpflug rule. The second analysis system is an optical coherence interferometer. A processing device processes a first image data set obtained by the first analysis system and a second image data set obtained by the second analysis system to supplement the first image data set, at least partially, with data of the second image data set. | 10-30-2014 |
20140320816 | SNAPSHOT SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHER - Provided is a snapshot spectral domain optical coherence tomographer comprising: a light source providing a plurality of beamlets; a beam splitter, splitting the plurality of beamlets into a reference arm and a sample arm; a first optical system that projects the sample arm onto multiple locations of a sample; a second optical system for collection of a plurality of reflected sample beamlets; a third optical system projecting the reference arm to a reflecting surface and receiving a plurality of reflected reference beamlets; a parallel interferometer that provides a plurality of interferograms from each of the plurality of sample beamlets with each of the plurality of reference beamlets; an optical image mapper configured to spatially separate the plurality of interferograms; a spectrometer configured to disperse each of the interferograms into its respective spectral components and project each interferogram in parallel; and a photodetector providing photon quantification. | 10-30-2014 |
20140327877 | IMAGING OF THE EYE - A method of determining a geometrical measurement of a retina of an eye, comprising obtaining a two dimensional representation of at least a portion of the retina of the eye ( | 11-06-2014 |
20140327878 | CONTROL APPARATUS, CONTROL METHOD AND PROGRAM - In an eye fundus surface expansion observation screen, a surface moving image that is a moving image showing the surface of a predetermined region in a subject's eye is enlarged and displayed. In an eye fundus tomography expansion confirmation screen, a tomographic image showing the tomography of the subject's eye, which corresponds to a position selected from the surface moving image, is enlarged and displayed. | 11-06-2014 |
20140340634 | OPTICAL COHERENCE TOMOGRAPHY SYSTEMS AND METHODS - An optical coherence tomography system may have a reflector system that reflects light from a light source to provide a plurality of light rays that fall within different wavelength ranges, optical componentry that directs a subset of a first beam of light including the plurality of light rays to an object to be imaged, a detector that detects the subset after reflection from the object, and signal processing componentry that processes signals from the detector to provide an optical coherence tomography image of the object. The reflector system may be configured such that the optical pathways followed by the light rays change in length at an even increment, so that the first beam of light will project wavelength groups at relatively even time increments. The optical pathways may be collinear or offset from each other. An interleaver may be used to enable detection of the first beam by multiple detectors. | 11-20-2014 |
20140340635 | OCULAR CHARACTERISTICS MEASURING APPARATUS - If an intraocular lens is inserted in an eye to be examined, characteristics of the eye to be examined are measured after increasing light intensity of visible light projected onto the eye to be examined to be higher than light intensity at the time of measurement of an eye to be examined in which no intraocular lens is inserted. | 11-20-2014 |
20140340636 | METHOD AND DEVICE FOR MEASURING HAEMOGLOBIN IN THE EYE - Based on the identification by colorimetry of a colour image of the fundus of the eye of an individual, obtained by specialised cameras (fundus camera or retinograph). The method and the device of the present invention enable establishing a direct relation between the chromatic properties of the various tissues of the optic nerve ( | 11-20-2014 |
20140340637 | BRIGHTNESS-DEPENDENT ADJUSTMENT OF A SPECTACLE LENS - Adjustment of an eyeglass lens or a pair of eyeglasses by means of an individual brightness-dependent centering of an eyeglass lens. In particular, a method for adjusting an individual eyeglass lens for at least one eye of an eyeglass wearer. The method includes defining an individual usage situation which includes at least one target brightness value for the light to be captured by the at least one eye; determining a position of the pupil in at least one direction of view of the at least one eye which occurs or is expected at the at least one target brightness value; determining a reference point of the eyeglass lens, in which the eyeglass lens effects a required correction of individual refraction data for the at least one direction of view; on the basis of the determined individual value of the pupil position, providing and arranging the eyeglass lens in such a manner that the at least one reference point of the eyeglass lens is arranged in front of the at least one eye of the eyeglass wearer. | 11-20-2014 |
20140340638 | IMAGE DISPLAY APPARATUS, IMAGE DISPLAY METHOD AND IMAGING SYSTEM - An image display apparatus obtains a plurality of moving images obtained by capturing a plurality of imaging areas of a fundus, and a wide field of view image obtained by capturing an area including the plurality of imaging areas of the fundus. Each of the plurality of moving images is associated with pulse data based on a biomedical signal obtained in capturing the moving image. The image display apparatus superimposes and displays at least one frame of each of the plurality of moving images at a position on the wide field of view image, which is determined based on information about the positions of the plurality of imaging areas. In the superimposing/display operation, the image display apparatus displays the plurality of moving images at a display timing synchronized based on the pulse data. | 11-20-2014 |
20140347627 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD AND COMPUTER READABLE STORAGE MEDIUM - An information processing apparatus for controlling, in one image capture region, image capture of a plurality of high-magnification images having a viewing angle smaller than the viewing angle of the image capture region presents to an operator for selection a plurality of basic patterns each representing a distribution of positions at which to respectively capture high-magnification images. An image capture condition of the plurality of high-magnification images associated with the basic pattern selected from the plurality of basic patterns is adjusted in accordance with an instruction of the operator. An image capture apparatus is caused to capture the plurality of high-magnification images in the image capture region in accordance with the adjusted image capture condition. | 11-27-2014 |
20140347628 | MULTI-VIEW FUNDUS CAMERA - The invention relates to a fundus camera that incorporates an integral imaging system for capturing an integral photograph of the fundus. This integral photograph enables projecting a three-dimensional image and generating topographical maps of the fundus. The fundus camera can function plenoptically and thus zoom onto a two-dimensional image generated from the integral photograph. The proposed equipment consists of an optical system for illuminating the fundus and an optical system forming the integral image capture system. This capture system includes an ophthalmoscopic lens, a microlens array and a sensor, and it allows recording, in a single shot, multiple views of the fundus. To improve the resolution of the integral photograph, the capture system has a device that allows displacing the microlens array by a few microns. | 11-27-2014 |
20140347629 | INTEGRATED DEVICE FOR OPHTHALMOLOGY - A device for ophthalmic radiation is provided. The device comprises a radiation interface, an optical branch coupler, and a plurality of ophthalmic units. The radiation interface is adapted to at least one of output and capture radiation on an optical path. The optical path is directable towards a patient's eye. The optical branch coupler is adapted to couple output radiation from a plurality of optical branches into the optical path and to couple captured radiation from the optical path into the optical branches. The captured radiation is spectrally split by the optical branch coupler into the optical branches. Each of the optical branches has a different spectral range. Each of the plurality of ophthalmic units is arranged to couple to one of the optical branches. | 11-27-2014 |
20140347630 | Fast measurement of ocular axial length - The present invention concerns a Michelson-type interferometer ( | 11-27-2014 |
20140354949 | INTERACTIVE PLATFORM FOR HEALTH ASSESSMENT - Methods and systems are disclosed for performing an assessment of vision-related health conditions for a user. A questionnaire regarding a user's identity and health history is displayed on a display mounted to a station. At least one interactive test image for assessing visual acuity is displayed on the display mounted to a station. An assessment is performed of vision-related health conditions for the user based on the user's response to the at least one interactive test image. At least one professional services and one marketing option is displayed. Instructions to the user for obtaining a copy of the assessment of vision-related health conditions for the user are displayed. | 12-04-2014 |
20140354950 | Hybrid Telescope for Optical Beam Delivery and Related Systems and Methods - Optical coherence tomography (OCT) imaging systems are provided including a source of broadband optical radiation coupled to a sample arm of the OCT imaging system; a beam shaping optical assembly in the sample arm, the beam shaping optical assembly being configured to receive optical radiation from the source as a beam of optical radiation and to shape the spatial profile of the beam of optical radiation; a scan mirror assembly coupled to the beam shaping optical assembly; and objective lens assembly coupled to the beam shaping optical assembly. The beam shaping optical assembly includes a lens assembly configured to change a NA of the OCT system without changing a focus; to change a focus of the OCT system without changing a NA of the system; or to change both the NA and the focus of the OCT system responsive to a control input. | 12-04-2014 |
20140354951 | SYSTEMS AND METHODS FOR OBTAINING LOW-ANGLE CIRCUMFERENTIAL OPTICAL ACCESS TO THE EYE - A system for obtaining low-angle circumferential optical access to an eye of a subject. The system includes a light source to generate a beam of light; a beam steering mechanism to steer the beam of light a focusing lens to focus the beam of light; and a contact lens to direct the beam of light into the eye of the subject, the contact lens including a tapered reflective surface to direct the beam of light into the eye of the subject. | 12-04-2014 |
20140354952 | SYSTEM FOR AN OBSERVATION OF AN EYE AND ITS SURROUNDING AREA - Disclosed is a system and device for observation of an eye (E) comprising a light source (LSo) for illuminating the eye. Further, the system includes a diffraction grating as an optical relay (OR) for receiving the light reflected from the eye and for deflecting it towards a light sensor (LSe). The incident light ray (r inc) intersects the optical relay at an incidence angle (alphajnc) with the normal (n_OR) to the optical relay in an incidence plane (Pl_inc) formed by the incident light ray (r_inc) and the normal (n_OR). The deflected light ray (r def) forms a deflection angle (alpha def) with the normal (n_OR) in a deflection plane (Pl def) formed by the deflected light ray (r_def) and the normal (n_OR). The optical relay is positioned such that the incidence and the deflection angle and/or the incidence plane and the deflection plane are different from each other. | 12-04-2014 |
20140362342 | VARIABLE RESOLUTION OPTICAL COHERENCE TOMOGRAPHY SCANNER AND METHOD FOR USING SAME - The invention relates generally to optical tomographic imaging and in particular to systems and methods for adapting the resolution of imaging. One embodiment of the present invention is an apparatus for optical coherence tomography imaging, characterized by its ability to vary the axial resolution and scanning speed during imaging. | 12-11-2014 |
20140362343 | MICROSCOPY SYSTEM FOR OBSERVING FLUORESCENCE IN OPHTHALMOLOGY - An ophthalmology microscopy system for observing fluorescence comprises an imaging system and an illumination system. The imaging system provides at least one optical imaging path producing a magnified multi-dimensional image of an object disposable in a focal plane of the imaging system, and comprises at least one optical observation filter. The illumination system provides an illumination beam path intersecting the focal plane of the imaging system at a variable angle of less than 90°. The microscopy system comprises first and second operating states. In the first operating state, radiation passing through the illumination beam path has at least in a section along the illumination beam path a spectrum free of a pass band of the observation filter. In the second operating state, radiation passing through the illumination beam path has a spectrum having a bandwidth of at least 200 nm in a range from 380 nm to 780 nm. | 12-11-2014 |
20140362344 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD AND STORAGE MEDIUM - An image processing apparatus includes: an acquisition unit configured to acquire a tomogram of an eye portion of a patient to be examined; an information acquisition unit configured to acquire information of a predetermined portion and position information of a predetermined tissue structure from the tomogram; and a calculation unit configured to calculate an evaluation value based on a relationship between the information of the predetermined portion and a position of the predetermined tissue structure. | 12-11-2014 |
20140368791 | OPHTHALMOLOGIC APPARATUS AND CONTROL METHOD FOR OPHTHALMOLOGIC APPARATUS - Provided is an ophthalmologic apparatus capable of performing an alignment operation between an eye to be inspected and an inspection unit, the ophthalmologic apparatus including: an inspection unit configured to obtain inspection information of an eye to be inspected; a base unit including a support member configured to determine a holding position of the eye to be inspected; an operation unit configured to operate movement of the inspection unit with respect to the base unit in accordance with an operation amount; a moving unit configured to move the inspection unit in accordance with the operation amount input from the operation unit; a detection unit configured to detect a position of the inspection unit with respect to the base unit; and a control unit configured to control an amount related to movement of the inspection unit corresponding to the operation amount based on a detection result of the detection unit. | 12-18-2014 |
20140368792 | SYSTEMS AND METHODS FOR DETERMINING BIOMECHANICAL PROPERTIES OF THE EYE FOR APPLYING TREATMENT - A system for determining biomechanical properties of corneal tissue includes a light source configured to provide an incident light and a confocal microscopy system configured to scan the incident light across a plurality of cross-sections of corneal tissue. The incident light is reflected by the corneal tissue as scattered light. The system also includes a filter or attenuating device configured to block or attenuate the Rayleigh peak frequency of the scattered light, a spectrometer configured to receive the scattered light and process frequency characteristics of the received scattered light to determine a Brillouin frequency shift in response to the Rayleigh peak frequency being blocked or attenuated by the filter or attenuating device, and a processor configured to generate a three-dimensional profile of the corneal tissue according to the determined Brillouin frequency shift. The three-dimensional profile provides an indicator of one or more biomechanical properties of the corneal tissue. | 12-18-2014 |
20140368793 | SYSTEMS AND METHODS FOR DETERMINING BIOMECHANICAL PROPERTIES OF THE EYE FOR APPLYING TREATMENT - A system for determining biomechanical properties of corneal tissue includes a light source configured to provide an incident light and a confocal microscopy system configured to scan the incident light across a plurality of cross-sections of corneal tissue. The incident light is reflected by the corneal tissue as scattered light. The system also includes a filter or attenuating device configured to block or attenuate the Rayleigh peak frequency of the scattered light, a spectrometer configured to receive the scattered light and process frequency characteristics of the received scattered light to determine a Brillouin frequency shift in response to the Rayleigh peak frequency being blocked or attenuated by the filter or attenuating device, and a processor configured to determine a three-dimensional profile of the corneal tissue according to the determined Brillouin frequency shift. The three-dimensional profile provides an indicator of one or more biomechanical properties of the corneal tissue. | 12-18-2014 |
20140375951 | SYSTEM AND METHOD FOR THE NON-CONTACTING MEASUREMENTS OF THE EYE - Combined equipment for non-contacting determination of axial length (AL), anterior chamber depth (VKT) and corneal curvature (HHK) of the eye, are also important for the selection of the intraocular lens IOL to be implanted, particularly the selection of an intraocular lens (IOL) to be implanted, preferably with fixation of the eye by means of a fixating lamp and/or illumination through light sources grouped eccentrically about the observation axis. | 12-25-2014 |
20140375952 | HAND-HELD OPHTHALMOLOGICAL DEVICE - A hand-held ophthalmological device includes: a main unit having an ophthalmoscopic optical system configured to project ophthalmoscopic light to an examinee's eye and receive reflection light therefrom to examine or measure an examinee's eye; a detector placed in the main unit and configured to detect a relative deviation between an optical axis of the ophthalmoscopic optical system and the examinee's eye; a deviation compensating optical system placed as a part of the ophthalmoscopic optical system and configured to compensate the deviation; and a drive part configured to drive the deviation compensating optical system based on output from the detector. | 12-25-2014 |
20140375953 | Apparatus, System and Method for Precision Depth Measurement - Systems, apparatus, and methods are disclosed for locating tissue layer transitions within a cornea, including focusing a laser to a laser spot with an energy below a photodisruption threshold of the cornea, varying a position of the focal spot of the laser between an anterior surface of the cornea and a posterior surface of the cornea, and determining one or more transitions of the tissue layers based on a change in harmonic light generated by the laser spot. | 12-25-2014 |
20150009473 | EYE IMAGING APPARATUS WITH A WIDE FIELD OF VIEW AND RELATED METHODS - An eye imaging apparatus can include a housing, an optical imaging system in the housing, and a light source in the housing to illuminate an eye. The optical imaging system can include an optical window at a front end of the housing with a concave front surface for receiving the eye as well as an imaging lens disposed rearward the optical window. The apparatus can comprise a light conditioning element configured to receive light from the light source and direct said light to the eye. The apparatus can further include an image sensor in the housing disposed to receive an image of the eye from the optical imaging system. In various embodiments, light conditioning element includes at least one multi-segment surface. In some embodiments, the housing is provided with at least one hermitic seal, for example, with the optical window. In some embodiments, time sequential illumination is employed. | 01-08-2015 |
20150015845 | OPTICAL COHERENCE TOMOGRAPHY WITH DYNAMIC FOCUS SWEEPING AND WINDOWED AVERAGING - During scan capture with an OCT imaging system, the focal plane position can be simultaneously shifted over at least a portion of an image range. As a result, a plurality of image frames respectively corresponding to various focal plane positions is acquired. The image frames can be combined to generate a composite image having suitable resolution throughout the image range, including regions associated with weak-intensity or low-reflectance features. Further, windowed averaging can be performed prior to generation of the composite image so that the composite image incorporates weights given to image data in focus. | 01-15-2015 |
20150015846 | Directional Optical Coherence Tomography Systems and Methods - An optical coherence tomography system that includes an optical device having an adjustable optical element configured to displace a pupil entry point of light is provided. Optical coherence tomography methods using the optical coherence tomography system are also provided. The subject optical coherence tomography systems and methods find use in a variety of different applications, including imaging applications. | 01-15-2015 |
20150022779 | SYSTEM AND METHOD OF SCAN CONTROLLED ILLUMINATION OF STRUCTURES WITHIN AN EYE - There is provided a system, apparatus and methods for enhancing the illumination of structures of the eye using predetermined scan patterns of an illuminating light beam. The systems, apparatus and methods further provide for obtaining enhanced single images of multiple structures of the eye. | 01-22-2015 |
20150029461 | CYCLODUCTION MEASUREMENT DEVICE, CYCLODUCTION MEASUREMENT METHOD, AND CYCLODUCTION MEASUREMENT PROGRAM - This cycloduction measurement device is provided with a blood vessel position recognition unit and a first angle calculation unit. The blood vessel position recognition unit recognizes the position of a blood vessel in a sclera region in an eye image, and acquires information pertaining to the position of the blood vessel. The first angle calculation unit calculates the angle of cycloduction on the basis of the first information pertaining to the position of a predetermined blood vessel acquired by the blood vessel position recognition unit during actual measurement of cycloduction, and a second information pertaining to the position of the predetermined blood vessel while in a reference state. | 01-29-2015 |
20150036103 | TRANSMISSION DIFFRACTIVE OPTICAL ELEMENT AND MEASURING DEVICE - A transmission diffractive optical element formed of quartz for a wavelength of 0.8 μm band, wherein a refractive index of the quartz is n, a wavelength of light entering a diffraction grating is λ (nm), a pitch of the diffraction grating is p (nm), a depth of the diffraction grating is D (μm), and a duty ratio in which a width of the diffraction grating is divided by the pitch is α, wherein the pitch and the depth and the duty ratio of the diffraction grating satisfy a predetermined condition for acquiring high diffraction efficiency. | 02-05-2015 |
20150042949 | PROCESS FOR OPTICAL COHERENCE TOMOGRAPHY AND APPARATUS FOR OPTICAL COHERENCE TOMOGRAPHY - In a process for optical coherence tomography a plurality of first OCT slice images, in each first slice image representing a different slice of an object, are recorded. Subsequently a reference figure that is representative of the three-dimensional contour of at least one structural feature of the object in a given three-dimensional coordinate system is ascertained by feature recognition of the at least one structural feature in the first slice images. Then a plurality of second OCT slice images, each second slice image representing a different slice of the object, are recorded. At least a fraction of the second slice images are displaced in the coordinate system until each second slice image is in feature overlap with the reference figure. Lastly, a set of three-dimensional OCT image data is generated at least from the feature-overlapped second slice images. | 02-12-2015 |
20150042950 | OPHTHALMOLOGIC APPARATUS - There is provided a fundus imaging apparatus which suppresses generation of a ghost image, and is capable of high-magnification/high-resolution fundus imaging (AO-SLO), and low-magnification/wide-angle fundus imaging for wide-angle monitoring by a compact optical system having high optical performance. In a fundus imaging apparatus which guides light emitted by a light source to an eye to be inspected, through a scanning unit for two-dimensionally scanning a fundus, and obtains a fundus image based on the light reflected by the eye to be inspected, an optical system between the scanning unit and the eye to be inspected is constituted by a plurality of reflecting surfaces. The first reflecting surface from the eye to be inspected is a rotationally asymmetrical aspherical surface. | 02-12-2015 |
20150042951 | OPHTHALMOLOGIC IMAGING APPARATUS - An optical system of an ophthalmologic imaging apparatus of an embodiment divides light from a light source into measuring light and reference light, interferes the measuring light having passed through an eye with the reference light, and detects interference light. A processor generates examination data indicating the status of the eye by processing the detection results of the interference light. An output part outputs the examination data generated by the processor. The optical system presents a target to the eye by guiding a light flux output from a flat panel display to the eye. The processor derives a visual acuity value of the eye based on the content of a response input by using a manipulator when the response of a subject for the presented target is input via the manipulator, generating the examination data including this visual acuity value. | 02-12-2015 |
20150042952 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM - An ophthalmic apparatus determines, based on information indicating a tilt of an object in a tomographic image, a direction in which luminance information of the tomographic image is to be combined. Then, the ophthalmic apparatus combines the luminance information of the tomographic image along the determined direction, thereby generating a plane image of the object. | 02-12-2015 |
20150049306 | METHOD FOR DETERMINING A BEHAVIOURAL, POSTURAL OR GEOMETRIC-MORPHOLOGICAL CHARACTERISTIC OF A PERSON WEARING SPECTACLES - A method for determining at least one behavioural, postural or geometric-morphological characteristic of a person wearing spectacles, the method includes the steps of: a) illuminating the wearer's head using an infrared light source ( | 02-19-2015 |
20150055089 | OPHTHALMIC PHOTOGRAPHING APPARATUS - An ophthalmic photographing apparatus including an OCT optical system for acquiring an OCT signal of a subject eye; an optical scanner for scanning the subject eye by the measurement light applied to the subject eye; a scan controller for controlling driving of the optical scanner and operate first scan control of respectively performing one scan by measurement light with respect to each of plural scan lines and second scan control of performing plural scans by measurement light with respect to each of the plural scan lines; and an image processor for acquiring the OCT signal in each scan line based on an output signal from the OCT optical system and perform composite processing on a plurality of the OCT signals of each scan line acquired by the second scan control using the OCT signal of each scan line acquired by the first scan control as a template. | 02-26-2015 |
20150055090 | THREE-DIMENSIONAL RETINA IMAGE GENERATOR - Provided is a three-dimensional retina image generator that can detect, in a precise manner, the scanning position displacement during scanning of the retina with a simple configuration and, as a result, and can obtain a high-quality retinal image with a reduced influence of speckle noise therein. In order to detect the movement of retina R, the three-dimensional retina image generator has: second light source unit | 02-26-2015 |
20150055091 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS - An optical tomographic imaging apparatus acquires tomographic images of an object to be examined; where the images are based on multiplexed reference light and return light returned from the object irradiated by measurement light via a scanning unit. The apparatus includes a splitting unit to split light irradiated from a light source into the measurement light and the reference light, and a focusing unit disposed on the optical path of the measurement light between the splitting unit and scanning unit. A primary magnification of the optical system on the optical path of the measurement light or the observation light path, and a numerical aperture of the light source irradiating the measurement light, are configured such that a maximum inclination of light rays included in the light flux of the measurement light is maintained within ±2 degrees of inclination with respect to the optical axis of the optical path. | 02-26-2015 |
20150055092 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS - An optical tomographic imaging apparatus acquires tomographic images of an object to be examined; where the images are based on reference light multiplexed with return light returned from the object to be examined which has been irradiated by measurement light via a scanning unit. The optical tomographic imaging apparatus includes a splitting unit configured to split light irradiated from a light source into the measurement light and the reference light, and a focusing lens disposed on the optical path of the measurement light between the splitting unit and a scanning unit. In a state in which the object to be examined is to be irradiated by the measurement light, an optical path branching unit which transmits the measurement light is retracted from the optical path. | 02-26-2015 |
20150055093 | MICROSCOPE-INTEGRATED OCT SYSTEM WITH AN ELECTRICALLY TUNABLE FOCUS - A surgical imaging system is provided. The surgical imaging system includes a surgical microscope and a telecentric optical coherence tomography scanning unit configured to scan a sample through at least one optical component associated with the surgical microscope. | 02-26-2015 |
20150055094 | METHOD AND APPARATUS FOR IMAGING THE CHOROID - A method and apparatus for imaging the choroid is described. A plurality of choroidal images is captured. The plurality of images is aggregated to generate a single aggregated image with good contrast. Prior to any aggregation, the images may be aligned to remove any displacement caused by saccadic motion between one frame and another, and any images degraded by a blink of the patient can be identified and discarded. | 02-26-2015 |
20150062530 | APPARATUS AND METHOD FOR RETINAL MEASUREMENT - Embodiments of the present invention provide a retinal densitometer, comprising an illumination unit for outputting bleaching illumination for photo-bleaching an eye and reflectance illumination at one or more wavelengths for determining reflectance of the eye at the one or more wavelengths, an imaging device arranged to output image data corresponding to an image of the eye at the one or more wavelengths of reflectance illumination, and a control unit arranged to control the illumination unit and the imaging device to output the bleaching illumination, the reflectance illumination at the one or more wavelengths and to output image data according to a predetermined sequence. | 03-05-2015 |
20150062531 | Heads Up Displays for Optical Coherence Tomography Integrated Surgical Microscopes - Surgical microscope systems are provided including an optical coherence tomography (OCT) system; an objective lens; oculars for direct viewing of a subject distal to the objective lens; a heads up display module configured to direct an optical image through the oculars to be visible to a user of at least one ocular; and a coupling element connected to the surgical microscope coupling the OCT system, the heads up display module and the objective lens. The coupling element has first and second faces, the first face positioned toward the oculars of the surgical microscope and the second face positioned toward the subject. The coupling element is configured to receive a heads up optical display signal at the first face of the coupling element and reflect the signal in a wavelength band of the heads up display module; and receive a signal on the second face of the coupling element and reflect the signal in a wavelength band of the OCT system. | 03-05-2015 |
20150062532 | DATA ACQUISITION METHODS FOR REDUCED MOTION ARTIFACTS AND APPLICATIONS IN OCT ANGIOGRAPHY - Systems and methods for reducing the effects of motion on functional optical coherence tomography (OCT) imaging are described. Embodiments including post-processing and motion tracking are presented. A preferred embodiment in which functional OCT data is collected and analyzed for motion as a multiple scan unit is described. An extension of the invention to the collection of large field of view or montaged functional OCT data sets is also presented. | 03-05-2015 |
20150070651 | APPARATUS AND METHOD FOR CHARACTERIZING BIOMECHANICAL PROPERTIES OF EYE TISSUE - The present invention relates generally to apparatus and methods for evaluating the condition and properties of eye tissue. More particularly, the present invention is directed to apparatus and methods for non-invasively characterizing the biomechanical properties of eye tissue by utilizing an internal perturbation component. | 03-12-2015 |
20150077705 | Integrated OCT-Refractometer System for Ocular Biometry - A Slit-lamp-or-Microscope-Integrated-OCT-Refractometer system includes an eye-visualization system, configured to provide a visual image of an imaged region in an eye; an Optical Coherence Tomographic (OCT) imaging system, configured to generate an OCT image of the imaged region; a refractometer, configured to generate a refractive mapping of the imaged region; and an analyzer, configured to determine refractive characteristics of the eye based on the OCT image and the refractive mapping, wherein the refractometer and the OCT imaging system are integrated into the eye visualization system. | 03-19-2015 |
20150077706 | REAL-TIME OPTICAL AND DIGITAL IMAGE STABILIZATION FOR ADAPTIVE OPTICS SCANNING OPHTHALMOSCOPY - A real-time ophthalmoscope system for imaging an eye includes a wide field scanning light ophthalmoscope (SLO) configured for wide field imaging of the eye. The system also includes a small field SLO configured for high resolution imaging of the eye. A 2D tracking minor electrically coupled to a computer, and a 2D steering minor electrically coupled to the computer, are both disposed in an optical path between the small field SLO and the eye. The system is configured to acquire a plurality of small field images at a plurality of locations on the eye as defined by the 2D steering minor, each of the small field images is stabilized for a motion of the eye by the 2D tracking minor. A method for imaging of the eye is also described. | 03-19-2015 |
20150077707 | IMAGING SYSTEM - Imaging systems are provided allowing examination of different object regions spaced apart in a depth direction by visual microscopy and by optical coherence tomography. An axial field of view and a lateral resolution is varied depending on which object region is examined by the imaging system. The proposed imaging systems are in particular applicable for thorough examination of the human eye. | 03-19-2015 |
20150077708 | IMAGING SYSTEM - Imaging systems are provided allowing examination of different object regions spaced apart in a depth direction by visual microscopy and by optical coherence tomography. An axial field of view and a lateral resolution is varied depending on which object region is examined by the imaging system. The proposed imaging systems are in particular applicable for thorough examination of the human eye. | 03-19-2015 |
20150085250 | GAZE TRACKING VARIATIONS USING DYNAMIC LIGHTING POSITION - Aspects of the present disclosure relate to eye tracking systems and methods which track eyes by illuminating the eyes using a light source and detecting the eye illuminations using a sensor. Implementations of the present disclosure may utilize a light source with a dynamic lighting position to account for changes in lighting conditions during the tracking which interfere with detection of the eye illuminations, such as reflections in glasses which may obscure a user's eyes. | 03-26-2015 |
20150085251 | GAZE TRACKING VARIATIONS USING VISIBLE LIGHTS OR DOTS - Implementations of the present disclosure may include calibration techniques for systems which include eye tracking devices and display devices. The calibration techniques may involve a calibration process which utilizes a plurality of visible calibration targets that each defines a gaze point for a user. The calibration targets may include both targets output to the display device, as well as gaze points located on the eye tracking device itself. The calibration techniques may also include additional sensors on the eye tracking device to gather additional calibration information, such as a back-facing camera which captures images of the display device from the eye tracking device. Increased information regarding system setup that is useful in calibrating the eye tracking system may be obtained from the calibration process. | 03-26-2015 |
20150092159 | SYSTEMS AND METHODS FOR IMPLANTING AND EXAMINING INTRAOCULAR LENS - Systems and methods for designing and implanting a customized intra-ocular lens (IOL) is disclosed. In one embodiment, a system includes an eye analysis module that analyzes a patient's eye and generates biometric information relating to the eye. The system also includes eye modeling and optimization modules to generate an optimized IOL model based upon the biometric information and other inputted parameters representative of patient preferences. The system further includes a manufacturing module configured manufacture the customized IOL based on the optimized IOL model. In addition, the system can include an intra-operative real time analyzer configured to measure and display topography and aberrometry information related to a patient's eye for assisting in proper implantation of the IOL. | 04-02-2015 |
20150092160 | ANTERIOR SEGMENT THREE-DIMENSIONAL IMAGE PROCESSING APPARATUS, AND ANTERIOR SEGMENT THREE-DIMENSIONAL IMAGE PROCESSING METHOD - A processing apparatus is provided that receives and processes an anterior segment three-dimensional image of a subject's eye. The apparatus includes a first SS position specifying unit that accepts identification of at least three SS positions of the subject's eye, using at least two representative images from among two-dimensional tomographic images constituting the three-dimensional image, a true circle calculating unit that calculates a reference true circle passing through the at least three SS positions, and a second SS position specifying unit that identifies the SS positions in non-representative images other than the representative images, based on the reference true circle. | 04-02-2015 |
20150092161 | OPHTHALMOLOGIC IMAGE PROCESSING APPARATUS - An ophthalmic image processing apparatus includes: a storage unit configured to store a fundus image and a first partial image, the first partial image being a partial image photographed for a part of the fundus image and having a higher resolution than the fundus image; and a display control unit configured to combine the first partial image with respect to an image region on the fundus image corresponding to the first partial image, and to display a combined image of the fundus image and the first partial image on a display medium. | 04-02-2015 |
20150092162 | METHOD AND SYSTEM FOR DETERMINING POWER OF INTRAOCULAR LENS TO BE INSERTED - The present invention accurately predicts postoperative intraocular lens position on the basis of a shape image of the crystalline lens obtained by an optical interference tomographic imaging device. This makes it possible to reduce the postoperative refractive error and determine the power of the intraocular lens. The present invention comprises: a step for finding by computer the equatorial position, which is the site of maximum diameter in the crystalline lens, from the morphology of the crystalline lens obtained from a tomographic image of the patients eye generated by the optical interference tomographic imaging device; and a step for estimating the position of the intraocular lens from the equatorial position thus found. | 04-02-2015 |
20150103314 | METHOD FOR THE DETECTION OF VISUAL FUNCTION LOSSES - The invention relates to a method for the detection of visual function losses. The method comprises analysing the optical quality of a patient's eye based on one or more retinal images thereof or based on information relating to retinal images corresponding to an eye having an anterior segment and intraocular means that are healthy. The method comprises: detecting a visual function loss of the visual system of functional or pathological etiology, based on the result of the aforementioned analysis; and determining if this loss is due to a reduced and/or limited neural response, which induces alterations in the innervation of the intrinsic ocular muscles of the eye. | 04-16-2015 |
20150103315 | i-DDrOP: Interfacial Dewetting and Drainage Optical Platform - An interfacial dewetting and drainage optical platform (i-DDrOP) is provided which is an instrument that can quantify drainage and dewetting processes of in vitro model tear films covering contact lenses. | 04-16-2015 |
20150103316 | CONTROL METHOD OF A FUNDUS EXAMINATION APPARATUS - A control method of a fundus examination apparatus constructed as a perimeter for examining a fundus of an examinee's eye, includes: controlling a monitor provided in the fundus examination apparatus as the perimeter to display a two-dimensional map pertinent to a two-dimensional analysis result of the fundus based on a tomographic image of the examinee's eye obtained by an optical coherence tomography device; setting an examination position in the fundus examination apparatus as the perimeter on the two-dimensional map displayed on the monitor; and controlling the fundus examination apparatus as the perimeter based on the set examination position to examine the fundus. | 04-16-2015 |
20150109579 | Retinal movement tracking in optical coherence tomography - The present invention defines a method of correcting for eye movement during optical coherence tomography imaging. The method includes imaging (by scanning) a fundus of an eye to obtain a fundus image (for example, using an SLO); scanning the fundus to obtain a plurality of tomographic images (for example, using OCT); determining, at predetermined intervals, an alignment of the tomographic images with respect to the fundus image, and, if it is determined that there is a misalignment, determining the number of tomographic images that have been scanned in the predetermined interval since the previous alignment determination; determining the offset by which the tomographic images are misaligned; applying the offset to the next tomographic image to be scanned and rescanning the determined number of tomographic images that were scanned during the interval between misalignment being determined and offset being applied. | 04-23-2015 |
20150109580 | EYE SURGERY MICROSCOPE HAVING AN ENTITY FOR MEASURING AN AMETROPIA - An eye surgery microscope | 04-23-2015 |
20150116659 | FUNDUS OBSERVATION APPARATUS - The controller | 04-30-2015 |
20150116660 | FUNDUS OBSERVATION APPARATUS AND FUNDUS IMAGE ANALYZING APPARATUS - In a fundus observation apparatus, an optical system detects interference light generated by superposing signal light having traveled by way of an eye fundus and reference light having traveled by way of a reference optical path. An image forming part forms a cross sectional image based on detection results of the interference light. A specifying part analyzes the cross sectional image to specify an abnormal region located in the vicinity of central fovea of the eye fundus. The association information generating part calculates the distance between the central fovea and the abnormal region and generates association information in which the direction of the abnormal region relative to the central fovea and the distance are associated with each other. The evaluation information generating part generates evaluation information for evaluating the state of the eye fundus based on the association information. | 04-30-2015 |
20150116661 | IMAGING TECHNIQUE FOR OPTICAL COHERENCE TOMOGRAPHY - A technique for optical coherence tomography is provided. As to a device aspect of the technique, an imaging device comprises a base defining a rotation axis, a scanning and focusing assembly mounted to the base for rotation about the rotation axis, and a drive unit for rotationally driving the scanning and focusing assembly about the rotation axis. The scanning and focusing assembly includes a focusing device for focusing a beam of imaging radiation to produce a focused beam of imaging radiation having a focus, a scanning member for scanning the beam of imaging radiation, and a controller coupled to the drive unit and the scanning member and configured to control the scanning member to cause movement of the focus along a predetermined trajectory with respect to the scanning and focusing assembly. | 04-30-2015 |
20150116662 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - In pattern matching for detecting a positional difference between tomographic images of an eye to be examined, a target within the eye to be examined which causes a reduction in the similarity even though there is no positional difference, is selectively excluded. | 04-30-2015 |
20150116663 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes an analyzing unit that analyzes a tomographic image, a comparison target selecting unit that selects a statistical information in the closest age-group if an age calculated from a birth date input to a patient information input unit is outside a range of the age-groups of the statistical information, and a comparison unit that compares a result of the analysis performed by the analyzing unit with the statistical information selected by the comparison target selecting unit. | 04-30-2015 |
20150116664 | OPHTHALMOLOGICAL APPARATUS, COMPARISON METHOD, AND NON-TRANSITORY STORAGE MEDIUM - An ophthalmological apparatus includes a measurement unit configured to analyze a tomographic image and measure a layer thickness of a predetermined tissue of an eye being examined, a position identifying unit configured to identify positions of a plurality of parts of the eye being examined, a storage unit configured to store statistical data of layer thicknesses of the predetermined tissue of a plurality of eyes that have been examined, a position alignment unit configured to perform position alignment on an image of the eye being examined and an image represented by the statistical data, by using information regarding the positions of the plurality of parts, and a comparison unit configured to compare the layer thickness of the predetermined tissue of the eye being examined with the statistical data of the layer thicknesses of the predetermined tissue of the plurality of eyes that have been examined. | 04-30-2015 |
20150124215 | EYE TRACKING APPARATUS AND IMAGE CAPTURE MODULE THEREOF - An eye tracking apparatus and an image capture module thereof for capturing an iris image are provided. The image capture module includes a carrier, a light source and an image sensing unit. The light source and the image sensing unit are both disposed on the carrier and fastened ahead of the eye by carrier. The light source emits a light beam to the eye, and the image sensing unit receives the light beam reflected from the eye to capture the iris image. The light source and the image sensing unit are arranged at two different sides of a longitudinal reference plane. | 05-07-2015 |
20150124216 | AUTOMATED ASSESSMENT OF GLAUCOMA LOSS FROM OPTICAL COHERENCE TOMOGRAPHY - Systems and methods for assessing glaucoma loss using optical coherence topography. One method according to an aspect comprises receiving optical coherence image data and assessing functional glaucoma damage from retinal optical coherence image data. In an aspect, the systems and methods can map regions and layers of the eye to determine structural characteristics to compare to functional characteristics. | 05-07-2015 |
20150124217 | OPHTHALMIC DEVICE - There is provided an ophthalmic device that includes a plurality of light sources including at least a light source for obtaining a return light of which aberration has been corrected with a correction unit from an eye under examination; and a control unit configured to control measurement lights from the plurality of light sources such that the measurement lights enter the eye under examination in a predetermined order when a photography of a second eye is started after a photography of a first eye has been completed. | 05-07-2015 |
20150124218 | IMAGE PROCESSING APPARATUS, OPHTHALMOLOGIC IMAGING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM - An image processing apparatus includes an identification unit configured to identify periodicity of a fundus image obtained by capturing an image of a fundus of an eye, and an information acquisition unit configured to acquire information indicating an imaging state of photoreceptor cells in the fundus image based on the periodicity. | 05-07-2015 |
20150131050 | SYSTEMS AND METHODS FOR BROAD LINE FUNDUS IMAGING - Systems and methods for Broad Line Fundus Imaging (BLFI), an imaging approach that is a hybrid between confocal and widefield imaging systems, are presented. These systems and methods are focused on improving the quality and signal of broad line fundus images or imaging methods to create high contrast and high resolution fundus images. Embodiments related to improved pupil splitting, artifact removal, reflex minimization, adaptable field of view, instrument alignment and illumination details are considered. | 05-14-2015 |
20150131051 | EYE DETECTING DEVICE AND METHODS OF DETECTING PUPIL - An eye detecting device includes an optical assembly, an image sensor and an arithmetic unit. The optical assembly provides a plurality of incident lights. The incident lights enter into eyes to form a plurality of glints. At least part of glints is near a pupil of the eye. The image sensor is used to capture an eye image. The eye image includes images of the glints. The arithmetic unit analyzes the gray scale value of eye image and obtains the distributions of the glints through the gray scale value. The arithmetic unit determines the position of the pupil of eye according to the distributions of the glints. | 05-14-2015 |
20150131052 | ADAPTIVE OPTICS SYSTEM AND CONTROL METHOD OF THE SAME, TESTING APPARATUS AND CONTROL METHOD OF THE SAME, INFORMATION PROCESSING APPARATUS AND CONTROL METHOD OF THE SAME, AND COMPUTER-READABLE STORAGE MEDIUM - An adaptive optics system includes an irradiation unit adapted to irradiate an object with measurement light via a spatial light modulator; a detection unit adapted to detect a wavefront of return light from the object by a microlens array in which a plurality of microlenses are arranged; an acquisition unit adapted to acquire, based on the wavefront detected by the detection unit, correction data for correcting the wavefront by phase wrapping in the spatial light modulator; and a control unit adapted to perform control such that a wavefront discontinuous part formed by the phase wrapping determined by the correction data is held at not less than a predetermined distance from a center of each of the microlenses in the microlens array. | 05-14-2015 |
20150131053 | MODEL EYE PRODUCING A SPECKLE PATTERN HAVING A REDUCED BRIGHT-TO-DARK RATIO FOR USE WITH OPTICAL MEASUREMENT SYSTEM FOR CATARACT DIAGNOSTICS - A system includes a model eye and an optical measurement instrument, which includes: a corneal topography subsystem; a wavefront sensor subsystem; and an eye structure imaging subsystem. The subsystems may have a common fixation axis, and be operatively coupled to each other via a controller. The optical measurement instrument may perform measurements of the model eye to verify correct operation of the optical measurement instrument for measuring one or more characteristics of a subject's eye. The model eye may include an optically transmissive structure having a front curved surface and an opposite rear planar surface, and a material structure provided at the rear planar surface of the optically transmissive structure and having a characteristic to cause a speckle pattern of a portion of a coherent light beam that is directed back out the front curved surface of the optically transmissive structure to have a bright-to-dark ratio of less than 2:1. | 05-14-2015 |
20150138502 | OPHTHALMOLOGIC IMAGING APPARATUS AND OPHTHALMOLOGIC IMAGE PROCESSING APPARATUS - An ophthalmologic imaging apparatus that can follow up imaging for acquiring a cross sectional image by referring to a front image of an eye acquired in the past and scanning the same position as before with light, includes: a photographing part configured to photograph the eye and acquire a front image thereof; a cross sectional image forming part configured to scan the eye with light and form a cross sectional image thereof; a storage configured to store a first front image of the eye and a second front image acquired in follow up imaging executed with referring to the first front image; an information obtaining part configured to analyze the first and second front images and obtain misregistration information between these front images; and a calculator configured to calculate an evaluation value of an error in a scanning position in the follow up imaging based on the misregistration information. | 05-21-2015 |
20150138503 | OPTICAL COHERENCE TOMOGRAPHY DEVICE, METHOD, AND SYSTEM - In accordance with one aspect of the present invention, an optical coherence tomography instrument comprises an eyepiece for receiving at least one eye of a user is provided; a light source that outputs light that is directed through the eyepiece into the user's eye; an interferometer configured to produce optical interference using light reflected from the user's eye; an optical detector disposed so as to detect said optical interference; and electronics coupled to the detector. The electronics can be configured to perform a risk assessment analysis based on optical coherence tomography measurements obtained using the interferometer. An output device can be electrically coupled to the electronics, and may be configured to output the risk assessment to the user through the output device. The optical coherence tomography instrument can be self-administered, and the eyepiece can be a monocular system or a binocular system. | 05-21-2015 |
20150138504 | OCULAR TEAR FILM PEAK DETECTION AND STABILITZATION DETECTION SYSTEMS AND METHODS FOR DETERMINING TEAR FILM LAYER CHARACTERISTICS - Ocular surface interferometry (OSI) devices, systems, and methods are disclosed for peak detection and/or determining stabilization of an ocular tear film. Embodiments disclosed herein also include various image capturing and processing methods and related systems for providing various information about a patient's ocular tear film (e.g., the lipid and aqueous layers) and a patient's meibomian glands that can be used to analyze tear film layer thickness(es) (TFLT), and related characteristics as it relates to dry eye. | 05-21-2015 |
20150138505 | FULL-EYE ILLUMINATION OCULAR SURFACE IMAGING OF AN OCULAR TEAR FILM FOR DETERMINING TEAR FILM THICKNESS AND/OR PROVIDING OCULAR TOPOGRAPHY - Ocular surface interferometry (OSI) devices, systems, and methods are disclosed for measuring a tear film layer thickness (TFLT) of the ocular tear film, including the lipid layer thickness (LLT) and/or the aqueous layer thickness (ALT). The TFLT can be used to diagnose dry eye syndrome (DES). Certain embodiments also include ocular topography devices, systems and methods for deducing corneal shape by capturing an image of a target reflecting from the surface of the cornea. The image of the target contains topography information that is reviewable by a clinician to diagnose the health of the patient's eye by detecting corneal aberrations and/or abnormalities in corneal shape. Certain embodiments also include a combination of the OSI and ocular topography devices, systems and methods to provide imaging that can be used to yield a combined diagnosis of the patient's tear film and corneal shape. | 05-21-2015 |
20150138506 | IMAGING APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM - An imaging apparatus includes a measuring light focusing unit configured to focus measuring light for measuring aberration of an object on the object, an aberration correction unit configured to change a state based on the aberration measured with the measuring light, an imaging light focusing unit configured to focus imaging light for capturing an image of the object on the object, an imaging unit configured to capture an image of the object with the imaging light having passed through the aberration correction unit and the imaging light focusing unit, and a control unit configured to interlockingly control states of the measuring light focusing unit and the imaging light focusing unit. | 05-21-2015 |
20150146170 | EYE IMAGING APPARATUS WITH A WIDE FIELD OF VIEW AND RELATED METHODS - An eye imaging apparatus can include a housing, an optical imaging system in the housing, and a light source in the housing to illuminate an eye. The optical imaging system can include an optical window at a front end of the housing with a concave front surface for receiving the eye as well as an imaging lens disposed rearward the optical window. The apparatus can comprise a light conditioning element configured to receive light from the light source and direct said light to the eye. The apparatus can further include an image sensor in the housing disposed to receive an image of the eye from the optical imaging system. In various embodiments, light conditioning element includes at least one multi-segment surface. In some embodiments, the housing is provided with at least one hermitic seal, for example, with the optical window. In some embodiments, time sequential illumination is employed. | 05-28-2015 |
20150297074 | Pupilary Screening System and Method - A method of screening a pupil of a subject to determine whether the pupil reflex resembles a canonical pupil reflex is disclosed. The method comprises the steps of stimulating the pupil with a stimulus source, such as a pupilometer and determining whether one of various pupillary response conditions is met. | 10-22-2015 |
20150297076 | STRUCTURED ILLUMINATION OPHTHALMOSCOPE - A method for non-invasive observations of a fundus using an ophthalmoscope is provided. The method includes illuminating a retinal region of an eye by projecting an illumination pattern of illumination light onto the retinal region, at least one of detecting a portion of fluorescent light emitted from the retinal region and detecting a portion of illumination light reflected from the retinal region, thereby capturing a series of images of the retinal region at a plurality of different relative positions of the retinal region with respect to the illumination pattern projected onto the retinal region, wherein between the capturing of at least two images of the series the relative position of the retinal region with respect to the illumination pattern projected onto the retinal region is shifted in a non-controlled manner, and processing the captured images to extract a sub-resolution image of the retinal region. | 10-22-2015 |
20150297077 | OPHTHALMOLOGIC APPARATUS AND CONTROL METHOD THEREOF - The present invention reduces a positional displacement of an acquired image attributable to a delay from the issuance of a drive instruction to a scanner to the scanner actually reaching an instructed drive position. An ophthalmologic apparatus has a light scanning unit which scans measuring light on an eve to be examined, an acquisition unit which receives light reflected from the eye to be examined and acquires a light receiving signal, and an instruction unit which instructs the drive position of the light scanning unit. The apparatus further includes a position detection unit which detects the current position of the light scanning unit and a measurement unit which measures the drive time delay from the issuance of an instruction by the instruction until the current position reaches the instructed drive position. The acquisition unit starts acquiring the light receiving signal at timing based on the drive time delay. | 10-22-2015 |
20150305614 | METHODS AND SYSTEMS FOR AUTOMATIC DETECTION AND CLASSIFICATION OF OCULAR INFLAMMATION - Systems and methods to improve the detection and classification of inflammation in the eye are presented. The inflammatory markers in image data can be graded by comparing identified and extracted characteristics from the images with characteristics derived from a set of images of eyes from a general population of subjects. The image data can be divided into sub-regions for analysis to better isolate the true inflammatory markers from the impacts of cataracts or other opacities. In another embodiment, the location of an imaging beam can be controlled to minimize the impact of lens opacities from the collected data used to analyze the inflammation state of an eye. | 10-29-2015 |
20150305617 | OPHTHALMIC IMAGING APPARATUS, CONTROL METHOD THEREFOR, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM - An ophthalmic imaging apparatus performs imaging to produce a tomographic image of a fundus of an examined eye based on interference light obtained by combining measurement light and reference light, determines whether aliasing has occurred in the tomographic image, when it is determined that the aliasing has occurred, moves a position in which an optical path length of the measurement light and an optical path length of the reference light match from a retina side to a choroid side of the examined eye, and generates a fundus image based on the tomographic image that has been produced through imaging in a state where the position has been moved to the choroid side. | 10-29-2015 |
20150305618 | Surgical Microscopes Using Optical Coherence Tomography and Related Systems - Some embodiments of the present inventive concept provide optical coherence tomography (OCT) systems for integration with a microscope. The OCT system includes a sample arm coupled to the imaging path of a microscope. The sample arm includes an input beam zoom assembly including at least two movable lenses configured to provide shape control for an OCT signal beam; a scan assembly including at least one scanning mirror and configured for telecentric scanning of the OCT signal beam; and a beam expander configured to set the OCT signal beam diameter incident on the microscope objective. The shape control includes separable controls for numerical aperture and focal position of the imaged OCT beam. | 10-29-2015 |
20150313460 | MEASUREMENT OF BIOMECHANICAL PROPERTIES IN AN OCT IMAGE - Systems and method are provided for evaluating a biomechanical property of tissue. A shear wave generator is configured to induce a shear wave in the tissue. An optical coherence tomography (OCT) imager is configured to capture a B-scan frame of the tissue. An image processing component is configured to determine a frequency of the shear wave in the tissue from the B-scan frame of the tissue at each of a plurality of locations within the B-scan. A parameter calculation component is configured to calculate a value for the biomechanical property for a plural subset of the plurality of locations within the B-scan frame of the tissue from the determined frequency of the shear wave at each of the plural subset of the plurality of locations. | 11-05-2015 |
20150313461 | IMAGE CAPTURING APPARATUS, IMAGE CAPTURING METHOD, AND STORAGE MEDIUM - An image capturing apparatus includes a dividing unit configured to divide light from a light source into reference light and measurement light; a first dichroic mirror arranged in a measurement optical path for guiding the measurement light to an object to be examined; a second dichroic mirror arranged in a reference optical path for guiding the reference light to a reference object; and a light receiving unit configured to receive interference light between the measurement light passing through the first dichroic mirror and the reference light passing through the second dichroic mirror. | 11-05-2015 |
20150313462 | Method and System of using Photorefractive effects to examine eyes using a portable device - The current invention involves the use of portable devices such as a smart phone or tablet to perform an examination and diagnostic of an eye or pair of eyes using a photorefraction system and technique. The portable device would send a ray of light through the cornea and take measurements of the refraction. It would then use this information to diagnose any defects of the eye using a software application (app) or program or it can transmit the information to a server on which the diagnostic software is located where the server will run the diagnostic analysis. | 11-05-2015 |
20150320304 | NON-LINEAR PROJECTIONS OF 3-D MEDICAL IMAGING DATA - The present invention improves projection displays of volume data. Using the Minimum Intensity Projection (MinIP), fluid filled regions or other regions of hyporeflective tissue are displayed. By limiting the projection to partial volumes within the volume, differences in the scattering intensity within specific regions are isolated. In this way, hyperreflectivity of weakly scattering tissue can be assessed. | 11-12-2015 |
20150320307 | IMAGING PROBES AND ASSOCIATED DEVICES, SYSTEMS, AND METHODS UTILIZING ELECTROSTATIC ACTUATORS - Devices, systems, and methods that utilize at least one charged electrode to impart motion to an optical fiber positioned within an imaging probe by an electrostatic force are provided. In some embodiments, an ophthalmic imaging probe can include a handle; a cannula coupled to the handle; an optical fiber positioned at least partially within the handle and the cannula, the optical fiber configured to receive an imaging light from an imaging light source and guide the imaging light to an optical element positioned within the cannula; and an actuator system configured to impart motion to the optical fiber, the actuator system including an electrode positioned within the cannula and configured to impart motion to the optical fiber by selectively imparting an electric charge to the electrode and/or the electrically conductive layer of the optical fiber. | 11-12-2015 |
20150320311 | METHOD AND APPARATUS FOR IRIS RECOGNITION USING NATURAL LIGHT - A method, apparatus and computer program product are provided for iris recognition using natural light. A method is provided for receiving, at a user device, a plurality of iris images. The iris images are captured using natural light. The method also includes generating a composite iris ring based on the plurality of iris images, receiving an iris pattern, comparing the composite iris ring to the iris pattern, and determining a match probability based on the comparison of the composite iris ring to the iris pattern. | 11-12-2015 |
20150320312 | Imaging Accessory Frame for Integration With an Operating Microscope - An accessory frame for selectively coupling components to an optical microscope for imaging of a subject is provided. The optical microscope has a body including an undercarriage. The accessory frame includes a mounting plate that attaches to the undercarriage of the microscope. The mounting plate includes a first attachment port and a second attachment port. The first attachment port is configured to couple a first optical assembly in an optical path of the microscope between an objective lens of the microscope and the subject. The second attachment port is configured to couple a second optical assembly to the microscope body with at least a portion of the optical path of the second optical assembly being outside of the optical path of the microscope. | 11-12-2015 |
20150320313 | Portable medical device and method for quantitative retinal image analysis through a smartphone - The present invention essentially consists of an integrated system that allows acquisition and quantitative analysis of high-resolution images of the retina. The integrated system includes an optical device and a software app. The optical device is a smartphone-adapted lens for acquisition of high-resolution images of the retina. The software app is a smartphone app for quantitative analysis of the retinal images acquired through the hardware component of the device. The computation is carried out by means of cloud-based technologies. Quantitative indices of retinal damage are obtained. These indices are proven for being relevant for both clinical and research purposes. | 11-12-2015 |
20150327758 | CORNEAL ENDOTHELIAL CELL ANALYSIS METHOD AND CORNEAL ENDOTHELIAL CELL ANALYSIS APPARATUS - A corneal endothelial cell analysis method includes: a step of displaying a photographed image including endothelial cells of a cornea of an examinee's eye on a monitor; a step of setting, based on an operation signal from a user interface, regions of the endothelial cells for each or more than one of the cells with respect to the photographed image displayed on the monitor, the setting step including setting the endothelial cell regions on the one photographed image by use of setting modes including at least a first setting mode of setting the endothelial cell regions and a second setting mode different from the first setting mode; and a step of obtaining an analysis result on the endothelial cells of the examinee's eye based on the endothelial cell regions set by the first setting mode and the endothelial cell regions set by the second setting mode. | 11-19-2015 |
20150327759 | IMAGING PROBES AND ASSOCIATED DEVICES, SYSTEMS, AND METHODS UTILIZING LEVER ARM ACTUATORS - Devices, systems, and methods that utilize a mechanical structure, such as a lever arm or a flexure mechanism, and an electrically energizable member, such as an actuator, to impart motion to an optical fiber positioned within an imaging probe are provided. In some embodiments, an ophthalmic imaging probe can include a handle; a cannula coupled to the handle; an optical fiber positioned at least partially within the handle and the cannula, the optical fiber configured to receive an imaging light from an imaging light source and guide the imaging light to an optical element positioned within a distal portion of the cannula; and an actuator system configured to impart motion to the optical fiber, the actuator system including a mechanical structure and an electrically energizable member configured to selectively impart motion to the mechanical structure upon the electrically energizable member being electrically energized. | 11-19-2015 |
20150327760 | IMAGING PROBES AND ASSOCIATED DEVICES, SYSTEMS, AND METHODS UTILIZING SPEAKER ACTUATORS - Devices, systems, and methods that utilize a speaker to impart motion to an optical fiber positioned within an imaging probe are provided. In some embodiments, an ophthalmic imaging apparatus comprises an optical probe having a handle sized and shaped for handheld grasping by a user; and a cannula coupled to the handle, the cannula sized and shaped for insertion into an eye to be treated; an optical fiber positioned at least partially within the optical probe, the optical fiber configured to receive an imaging light from an imaging light source and guide the imaging light to an optical element positioned within the cannula of the optical probe; and an actuator system configured to impart motion to the optical fiber, the actuator system including a speaker positioned within the optical probe. | 11-19-2015 |
20150327761 | SYSTEMS AND METHODS FOR EFFICIENTLY OBTAINING MEASUREMENTS OF THE HUMAN EYE USING TRACKING - Systems and methods for efficiently obtaining optical coherence tomography (OCT) measurement data with reduced effects of motion are presented. One embodiment involves determining the amount of motion present during the collection of an OCT data set based on images of the eye collected at the same time as the OCT data, and recollecting select portions of the OCT data set when the amount of eye motion is determined to exceed a predetermined threshold. Another embodiment includes enabling or disabling a tracking feature based on the quality of the images available for tracking. Another embodiment includes reducing the effect of motion in the axial direction based on a comparison to a model of the eye constructed from OCT data. The method can also be used to reduce the presence of mirror image artifacts in an OCT image. | 11-19-2015 |
20150327763 | CORNEAL ENDOTHELIAL CELL PHOTOGRAPHING APPARATUS - A corneal endothelial cell photographing apparatus for photographing endothelial cells of a patient eye's cornea, includes: a cornea photographing optical system including an imaging device and configured to project light toward the cornea and photograph the corneal endothelial cells through the imaging device; a light projecting optical system to project detection light in a first oblique direction to the cornea to detect a focus state of the cornea photographing optical system relative to the cornea; a detecting optical system including a detector with arranged pixels and configured to receive, in a second oblique direction opposite to the first oblique direction, corneal reflection light resulting from the detection light and including reflection light from the corneal endothelium through the detector, and detect an intensity distribution of the corneal reflection light in a depth direction; and a controller to cause a monitor to display the intensity distribution output from the detector. | 11-19-2015 |
20150335238 | Optical Systems for Whole Eye Imaging and Biometry - Scanning optical beam imaging systems for imaging extended structures of an eye and providing biometry of an eye are provided. The systems include a focal system for shifting the focus of the scanning system from the front to the back of the eye. The systems provide for converging rays that can scan through the pupil of the eye, enabling scanning of the anterior and posterior segments of the eye using a common objective and a fixed working distance. | 11-26-2015 |
20150335242 | OPHTHALMIC APPARATUS AND CONTROL METHOD FOR THE SAME - A fundus camera has an image pickup element adapted to receive reflection light from an anterior ocular segment of an examinee's eye and a light receiving optical system that guides the reflection light from the anterior ocular segment of the examinee's eye to the image pickup element. The fundus camera is provided with a focus evaluation value acquisition unit that acquires a focus evaluation value representing an in-focus state of the light receiving optical system for the anterior ocular segment of the examinee's eye on the basis of an output of the image pickup element for a specific part of the anterior ocular segment of the examinee's eye and an in-focus position determination unit that determines an in-focus position of the light receiving optical system based on the focus evaluation value. With these unit, auto-focusing can be performed when imaging the anterior ocular segment. | 11-26-2015 |
20150335474 | INTRAOCULAR LENS ALIGNMENT - A method for generating a radial alignment guide for an eye includes collecting preoperative alignment data relative to a pupil from an eye that is not dilated. The method also includes locating a pupil center of the eye while dilated. The method further includes displaying the alignment data on an image of the dilated eye relative to the pupil center. In particular embodiments, software embodied in a computer-readable medium is executable by a processor to perform the steps of such a method. | 11-26-2015 |
20150342451 | ATTENUATION-BASED OPTIC NEUROPATHY DETECTION WITH THREE-DIMENSIONAL OPTICAL COHERENCE TOMOGRAPHY - Optical coherence tomography (OCT) scan data of a subject is acquired over a region of interest which can include an optic disc or a macula of a retina. Layer boundaries of retinal layers are identified in the OCT scan data to facilitate measurements. In one aspect, a measurement related to ratio value between a total backscattered signal intensity of one or more target layers of the retina and a total backscattered signal intensity of one or more reference layers is computed on a location-by-location basis within a region of interest of the OCT scan data. Measurements can be collected, aggregated, analyzed, and displayed in connection with other information taken or derived from the OCT scan data. | 12-03-2015 |
20150342456 | OPTICAL INTERFERENCE TOMOGRAPHIC APPARATUS, AND METHOD FOR CONTROLLING OPTICAL INTERFERENCE TOMOGRAPHIC APPARATUS - In order to acquire a tomographic image of the eye to be inspected with high precision even in case where an optical path length and intensity vary depending on a scanned position in an OCT apparatus acquiring the tomographic image of a predetermined part of an object to be inspected, based on the intensity of interference light obtained by combining return light from the object that has been irradiated with the measuring light, with reference light corresponding to the measuring light, includes: a scanning optical system which scans the object with the measuring light in an optical path of the measuring light; an image forming unit which generates the tomographic image based on the intensity of the interference light; and an image correcting unit which subjects the tomographic image to a correction process appropriate to the scanned position with the measuring light on the object | 12-03-2015 |
20150342458 | OPHTHALMIC APPARATUS - An ophthalmic apparatus includes an image-capturing unit that captures an image of an eye to be examined, a main body having in a rod-like shape and that accommodates the image-capturing unit, an eyepiece portion that is positioned at a first end of the main body in an axial direction of the main body and that is brought into contact with a portion around the eye to be examined, and a display that is positioned at a second end of the main body in the axial direction of the main body and that displays an image of the eye to be examined. The main body includes a holding portion that is to be held by a hand of an examiner and that extends in the axial direction of the main body. | 12-03-2015 |
20150351623 | OPHTHALMOLOGIC MEASUREMENT APPARATUS, METHOD AND PROGRAM OF CONTROLLING THE SAME - An ophthalmologic measurement apparatus includes a measurement unit that acquires an image of an eye to be inspected, a main unit in which the measurement unit is placed and which includes a holding part for holding the main unit with a hand, an eyepiece part having a shape asymmetric about a measurement optical axis of the measurement unit and capable of being in contact with an area around an eye to be inspected, a position detection unit that detects a position of the eyepiece part, an acquisition unit that acquires eye distinguishing information indicating whether the eye is a right eye or a left eye, and a display control unit that controls a display unit to display an image of the eye such that the image of the eye is rotated in a clockwise or counterclockwise direction based on the eye distinguishing information and a resultant image is displayed. | 12-10-2015 |
20150359425 | FOCUSING ALGORITHM IN OCT-ONLY SYSTEMS - In an OCT system, the autocorrelation signal depends only on the strength of the signal in the object arm scattered back from a patient's retina and is a result of different reflections from different layers of the retina interfering with each other. The strength of the autocorrelation signal depends on how well focused the system is. Normally the autocorrelation signal is treated as noise. However by removing the reference path signal, the autocorrelation signal is easily measured and analyzed. The optimal focus can the then be found by adjusting the focus value until the autocorrelation signal is maximized. | 12-17-2015 |
20150366447 | MECHANICAL FEATURES OF AN EYE IMAGING APPARATUS - Various embodiments of an eye imaging apparatus can be used to image the posterior and/or anterior portions of the eye. In some embodiments, the eye imaging apparatus can comprise a light source, imaging optics, an image sensor, and a handgrip comprising a bump shaped to fit with a palm of an operator. In some embodiments, the eye imaging apparatus can comprise a light source, imaging optics, an image sensor, and a control button. The control button can comprise a multi-functional button and/or a control button activated by the index finger. In some embodiments, the eye imaging apparatus can comprise a housing structure comprising a double shell structure with an inner shell and an outer shell, which can be configured to facilitate heat management. In some embodiments, the eye imaging apparatus can comprise a removable front imaging module, a main module, and an interconnect locking structure configured to enable repeated removal of the front imaging module from and re-attachment of the front imaging module to the main module. Various embodiments also comprise a carrying case for an eye imaging apparatus. | 12-24-2015 |
20150366448 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes a tomographic image acquisition unit configured to acquire a polarization-sensitive tomographic image of a subject, and an extraction unit configured to extract, from the polarization-sensitive tomographic image of the subject, a region in which a polarization state is scrambled. | 12-24-2015 |
20150366450 | Ophthalmic Imaging System with Automatic Retinal Feature Detection - A method of automatically detecting a retinal feature using an ophthalmic imaging system can include: acquiring an optical coherence tomography (OCT) image of a retina; segmenting the OCT image; generating a metric based on the segmented OCT image; detecting the retinal feature based on the metric; and providing an indication of the detected retinal feature to a user. An ophthalmic imaging system can include: an OCT system configured to acquire an image of a retina; a computing device coupled to the OCT system and configured to segment the image, generate a metric based on the segmented image, and detect a retinal feature based on the metric; and an audio/visual/tactile device in communication with the computing device and configured to provide at least one of an audio, visual, and tactile indication of the detected retinal feature to a user. | 12-24-2015 |
20150366452 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - An image processing apparatus includes an information acquiring unit configured to acquire information indicating a shape of a plurality of regions in at least one layer in a tomographic image including a plurality of layers in an eye fundus of an eye to be examined and a determination unit configured to determine whether an anomaly is present in the plurality of regions based on the information indicating the shape. | 12-24-2015 |
20150374224 | DEVICE AND METHOD FOR MEASURING AT LEAST ONE OBJECTIVE OCULAR REFRACTION CHARACTERISTIC OF A PATIENT FOR A PLURALITY OF VISUAL RANGES - A device for measuring the objective ocular refraction of a patient for a plurality of visual ranges, which includes a variable proximity optical sight system capable of selectively generating a first target and a second target and an image-capturing device having an optical measurement axis intended for being aligned with a line of sight of the patient, the image-capturing device being capable of capturing a first ocular refraction image when the first target is activated and a second ocular refraction image when the second target is activated. The image-capturing device and the optical sight system are arranged such that the optical measurement axis and the optical sight axis are arranged such that the optical measurement axis and the optical sight axis are contained in a single plane and the optical measurement axis is tilted at an angle alpha between +5 degrees and +85 degrees relative to the horizontal. | 12-31-2015 |
20150374228 | OPTICAL COHERENCE TOMOGRAPHY DEVICE, OPTICAL COHERENCE TOMOGRAPHY CALCULATION METHOD, AND OPTICAL COHERENCE TOMOGRAPHY CALCULATION PROGRAM - The present disclosure relates to an optical coherence tomography (OCT) including: an OCT device, an OCT calculation method, and an OCT calculation program, enabling correlation between images to be easily performed; more specifically it relates to a case where a functional OCT image such as a motion contrast is acquired by using the OCT; acquiring the functional OCT image through a calculation process of an OCT signal is a time-consuming process, for this reason, a long time elapses until the point that a functional OCT image can be observed after OCT imaging is completed, and thus this causes stress to a subject and an examiner; the present disclosure provides an OCT device, an OCT calculation method, and an OCT calculation program, enabling a functional OCT image to be rapidly acquired and enables an examiner to easily perform diagnosis. | 12-31-2015 |
20150374229 | FUNDUS IMAGING APPARATUS, METHOD OF CONTROLLING FUNDUS IMAGING APPARATUS, AND STORAGE MEDIUM - A fundus imaging apparatus comprising: position detection means for detecting a position of a pupil of an eye to be examined; wavefront detection means for detecting a wavefront of return light from the eye irradiated with light through an illumination optical system; correction means for correcting an aberration based on the detected wavefront; and determination means for determining a correction effective region of the correction means based on the detected position. | 12-31-2015 |
20150374230 | INFORMATION PROCESSING METHOD AND WEARABLE ELECTRONIC DEVICE - The present disclosure provides an information processing method and a wearable electronic device. The method comprises: obtaining human eye characteristic information of a user collected by an image collection unit; determining a first control strategy according to the human eye characteristic information and a first preset rule; and changing optical characteristics of first material according to the first control strategy, so as to adjust optical parameters of a light transmission module. | 12-31-2015 |
20150374232 | OPHTHALMIC APPARATUS - An ophthalmic apparatus includes: an imaging optical system including an imaging diaphragm placed between an objective lens and an imaging device to restrict light from a fundus, the light having passed through a position conjugate with an examinee's pupil, to image a fundus image by the imaging device through the objective lens and the imaging diaphragm; a first light projecting optical system to project light having a first wavelength emitted from a first light source and restricted in range for passage through the pupil, as autofluorescence-inducing excitation light to the eye through the objective lens; and a first optical-path combining member to allow the imaging optical system and the first light projecting optical system to share at least part of an optical path. The first optical-path combining member is provided between the objective lens and a conjugate position with the pupil through the objective lens in the imaging optical system. | 12-31-2015 |
20150374233 | Visual Problem Diagnosis Using Refractive Parameters Measured With A Retinal Camera - Systems, devices, and methods used to diagnose visual problems are disclosed. Diagnosing visual problems can be implemented using a fundus camera, for example. The camera focuses an image of an interesting portion of an eye being viewed. The image can be an intermediate real image of the fundus. Once the portion of the eye is in focus, the settings or the position of the focusing mechanism is determined. An optical error of an eye can be determined based on the determined settings or the determined position of the focusing mechanism. Once in focus, an image of the interesting portion of the eye can be taken or captured. A size of any feature of the eye can be determined, in absolute units based on determining an area occupied by the feature of the eye in the picture or the image, and the determined optical error of the eye. | 12-31-2015 |
20150374235 | ILLUMINATION DEVICE FOR AN OPTICAL VIEWING APPARATUS - An illumination device for an optical viewing apparatus defines an illumination beam path and includes an illumination light source having mutually independently controllable individual light sources arranged in a first plane in a two-dimensional array. The illumination device defines an illumination beam path and includes illumination optics defining an optical axis. The illumination optics form a second plane conjugated with respect to the first plane. A diaphragm unit is arranged in the second plane. The diaphragm unit has a plurality of apertures and the apertures are assigned to corresponding ones of the individual light sources. | 12-31-2015 |
20160000315 | AUTOMATED ANALYSIS OF THE OPTIC NERVE HEAD: MEASUREMENTS, METHODS AND REPRESENTATIONS - The present invention relates to structural analysis of the optic nerve head (ONH). In one approach, a 3D volume of intensity data which includes the optic nerve head is acquired using an optical coherence tomography (OCT) system. The vitreoretinal interface (VRI) and the optic disc margin are identified from the 3D data. The minimum area of a surface from the optic disc margin to the VRI is determined. This minimum area can be displayed as an image or in the alternative, a value corresponding to this minimum area can be displayed. The minimum area measurement provides relevant clinical information to determine the health of the eye. | 01-07-2016 |
20160000319 | SYSTEMS AND METHODS FOR SUB-APERTURE BASED ABERRATION MEASUREMENT AND CORRECTION IN INTERFEROMETRIC IMAGING - Systems and methods for sub-aperture correlation based wavefront measurement in a thick sample and correction as a post processing technique for interferometric imaging to achieve near diffraction limited resolution are described. Theory, simulation and experimental results are presented for the case of full field interference microscopy. The inventive technique can be applied to any coherent interferometric imaging technique and does not require knowledge of any system parameters. In one embodiment of the present application, a fast and simple way to correct for defocus aberration is described. A variety of applications for the method are presented. | 01-07-2016 |
20160000320 | SYSTEMS AND METHODS FOR SPECTRALLY DISPERSED ILLUMINATION OPTICAL COHERENCE TOMOGRAPHY - Systems and methods are presented for acquisition and processing of spectrally dispersed illumination optical coherence tomographic data. Light from a source is distributed spectrally on the sample, and each acquisition simultaneously provides partial spectral interference information from multiple locations in the sample. Thus for a given spatial point, a single observation will be of a partial spectrum A-scan. When multiple partial spectrum A-scan observations are made at the same point by shifting the spectrum of light on to the tissue, the point can be observed by the entire broadband spectrum of the light source, thereby making it possible to create a full axial resolution A-scan. | 01-07-2016 |
20160000323 | MOBILE DEVICE-EMBEDDED SYSTEM AND APPARATUS FOR PROVIDING REAL-TIME AUTOMATED HEALTH DIAGNOSIS BASED ON IRIS SCANNING ANALYSIS - The presented invention discloses, in the first aspect, a mobile-device embedded system and apparatus for personalized real-time instant diagnostics of a patient, such a diagnostics produced without human involvement, by scanning a patient's iris with a mini iridology camera, such a camera embedded into the patient' mobile device, and by performing automated real-time iridology analysis by cross-referencing the iridology scan results with diseases data, while iridology analysis package will be pre-installed into the patient' device, and by producing diagnosis if the iridology scan produces results consistent with iris signs indicating the disease. Patient' treatment is recommended by automatically cross-checking a list of diagnosed diseases with the list of treatments. Emergency medical response may be provided automatically to the patient location as determined by GPS/wireless means. | 01-07-2016 |
20160000324 | OPHTHALMIC EXAMINATION AND DISEASE MANAGEMENT WITH MULTIPLE ILLUMINATION MODALITIES - Imaging various regions of the eye is important for both clinical diagnostic and treatment purposes as well as for scientific research. Diagnosis of a number of clinical conditions relies on imaging of the various tissues of the eye. The subject technology describes a method and apparatus for imaging of the back and/or front of the eye using multiple illumination modalities, which permits the collection of one or more of reflectance, spectroscopic, fluorescence, and laser speckle contrast images. | 01-07-2016 |
20160007845 | FUNDUS IMAGING APPARATUS, ABERRATION CORRECTION METHOD, AND STORAGE MEDIUM | 01-14-2016 |
20160007847 | OCT APPARATUS AND METHOD OF CONTROLLING THE SAME | 01-14-2016 |
20160007848 | Eye Surgery System | 01-14-2016 |
20160015264 | IMAGING SYSTEM AND METHOD FOR DIAGNOSTIC IMAGING - An imaging system and method for using an optical device with an electronic device for diagnostic imaging is provided. The imaging system may include a controller configured to capture a series of holograms by powering a light source of the optical device to illuminate an object, wherein light from the light source is collimated onto the object through an aperture of the optical device. The controller may be configured to extract an interference pattern of the object from the series of holograms, wherein the interference pattern is produced by interference between a reflected beam from the object and a reference beam formed by a diffraction mirror of the optical device. The controller may be configured to record at least one image of the object based on the interference pattern. The imaging system may include a data storage configured to store the at least one image. | 01-21-2016 |
20160022133 | INCREASED DEPTH OF FIELD MICROSCOPE AND ASSOCIATED DEVICES, SYSTEMS, AND METHODS - An ophthalmic surgical microscope can include a movable optical element positioned in an optical pathway of light reflected from a surgical field. The movable optical element can be configured to oscillate in a direction along the optical pathway. The microscope can include an actuator coupled to the movable optical element and configured to move in response to a control signal. The microscope can include a computing device in communication with the actuator and configured to generate the control signal to move the movable optical element. In some embodiments, the computing device is configured to generate the control signal to move the movable optical element with an oscillation frequency greater than the critical flicker fusion rate. | 01-28-2016 |
20160022134 | DYNAMIC OPTICAL COHERENCE TOMOGRAPHY DEVICE AND METHOD - An imaging device and method is shown to image ocular tissue in motion. Devices and methods include at least one target to align the patient's eye at a desired angular orientation, multiple selectable target locations, and control circuitry to display the target at the multiple target locations and image ocular tissue at each multiple target location. | 01-28-2016 |
20160029886 | OPTICAL COHERENCE TOMOGRAPHY APPARATUS AND FUNDUS IMAGE PROCESSING PROGRAM - An optical coherence tomography apparatus includes: a scanning unit configured to scan a test substance with measurement light; an OCT optical system configured to detect an A scan signal caused by interference between the measurement light and reference light corresponding to the measurement light; and a processor configured to: acquire three-dimensional OCT data in which the A scan signals at respective scanning positions at the test substance are arranged in a two-dimensional manner; acquire a histogram of the A scan signals at the respective scanning positions; and generate an OCT front image by processing the acquired three-dimensional OCT data based on the acquired histogram. | 02-04-2016 |
20160029887 | EYE IMAGING APPARATUS WITH SEQUENTIAL ILLUMINATION - An eye imaging apparatus can include a housing, an optical imaging system in the housing, and a light source in the housing to illuminate an eye. The optical imaging system can include an optical window at a front end of the housing with a concave front surface for receiving the eye as well as an imaging lens disposed rearward the optical window. The apparatus can comprise a light conditioning element configured to receive light from the light source and direct said light to the eye. The apparatus can further include an image sensor in the housing disposed to receive an image of the eye from the optical imaging system. In various embodiments, light conditioning element includes at least one multi-segment surface. In some embodiments, the housing is provided with at least one hermitic seal, for example, with the optical window. In some embodiments, time sequential illumination is employed. | 02-04-2016 |
20160038023 | OPHTHALMOLOGIC APPARATUS - The present invention relates to an ophthalmologic apparatus for acquiring depth information of an eye including a light source; a measurement optical path guiding measurement light; a reference optical path generating reference light; and a detector generating a detection signal containing an interference signal of the measurement light via the measurement optical path and the reference light coming from the reference optical path; an actuator driving at least part of the interference optical system to vary an optical path length difference between the measurement optical path and the reference optical path; a standard optical system including optical members disposed corresponding to the optical path length differences in one of the measurement optical path and the reference optical path. Optical members guide part of the measurement light or the reference light to the detector. | 02-11-2016 |
20160038024 | APPARATUS AND METHOD FOR OPERATING A REAL TIME LARGE DIOPTER RANGE SEQUENTIAL WAVEFRONT SENSOR - A wavefront sensor includes a light source configured to illuminate a subject eye, a detector, a first beam deflecting element configured to intercept a wavefront beam returned from a subject eye when the subject eye is illuminated by the light source and configured to direct a portion of the wavefront from the subject eye through an aperture toward the detector and a controller, coupled to the light source and the beam deflecting element, configured to control the beam deflecting element to deflect and project different portions of an annular ring portion of the wavefront from the subject eye through the aperture and further configured to pulse the light source at a firing rate to sample selected portions of the annular ring at the detector. | 02-11-2016 |
20160051137 | OPTICAL COHERENCE TOMOGRAPHY METHOD AND SYSTEM - The present invention relates to the field of instruments for imaging internal structures of the human body, and in particular of the eye. More specifically it relates to an optimized method and an optical coherence tomography system thereof. | 02-25-2016 |
20160058279 | SYSTEM AND METHOD FOR IMAGING AN EYE FOR DIAGNOSIS - A mobile device includes a programmable processor operatively coupled to a memory, a display subsystem, and a camera subsystem and is configured to execute non-transitory computer-executable code, which instructs the programmable processor to: determine whether a camera image input received from the camera subsystem includes a representation of an iris from a human eye; capture a candidate image from the camera image input, the candidate image being including the representation of the iris; analyze the representation of the iris to determine whether the candidate image is suitable for processing as a diagnostic image based upon the representation of the iris meeting predetermined criteria; perform a diagnostic analysis on the representation of the iris in the diagnostic image in response to determining that the candidate image is suitable for further processing as the diagnostic image, the diagnostic analysis arriving at diagnostic results; and display the diagnostic results using the display subsystem. | 03-03-2016 |
20160058280 | SYSTEMS AND METHODS FOR ANALYSIS OF OCULAR INFLAMMATION - One aspect of the present disclosure relates to a system that can perform an automated analysis of ocular inflammation (e.g., based on a non-contact image of the eye), which can lead to determining score for the ocular inflammation. The system can include a memory to store computer-executable instructions; and a processor that executes the computer-executable instructions to at least: receive an image of a portion of an eye taken by a non-contact imaging modality; determine a diagnostic parameter for ocular inflammation from the image of the portion of the eye; score the ocular inflammation with a continuous value based on the diagnostic parameter; and output the score to a display device. | 03-03-2016 |
20160058281 | METHOD AND APPARATUS FOR MULTI-LEVEL EYE REGISTRATION - A method for performing multi-level eye registration comprising: obtaining a first initial reference eye image by a first diagnostic device and defining a reference coordinate system; obtaining a second eye image by a surgery device, said second eye image being obtained in a pre-surgery phase before the surgery has started; performing a first registration between said first eye image and said second eye image to obtain a first registration result; obtaining a third eye image by said surgery device, said third eye image being obtained after surgery has started; performing a second registration between said second eye image and said third eye image to obtain a second registration result; combining said first and second registration results to obtain a combined registration result to thereby obtain a registration between said initial reference eye image obtained by said diagnostic device and said third eye image obtained by said surgery device after surgery has started. | 03-03-2016 |
20160058283 | SYSTEM FOR CALCULATING CENTER OF ANTERIOR CAPSULE AND METHOD THEREOF - A method for calculating the center of the anterior capsule includes the steps of: photographing the eyeball of a patient with an optical coherence tomography; generating a 3-dimensional image and coordinates based on the data obtained by the optical coherence tomography; photographing the eyeball of the patient to produce an eyeball image; and matching the 3-dimensional image and coordinates to the eyeball image so as to calculate the center of the anterior capsule of the patient. A system for calculating the center of the anterior capsule includes: an optical coherence tomography apparatus for photographing the eyeball of a patient with an optical coherence tomography; a photographing device for photographing the eyeball of the patient to generate an eyeball image; and a central processing unit for generating a 3-dimensional image and coordinates based on the data obtained by the optical coherence tomography apparatus to match the 3-dimensional image and coordinates to the eyeball image obtained by the photographing device so as to calculate the center of the anterior capsule of the patient. | 03-03-2016 |
20160058284 | Fundus Imaging System - A fundus imaging system includes: an image sensor array, where the image sensor array includes monochrome photodiodes and global shutter control, an illumination unit with one or more light-emitting diodes that have one or more dies, a computing system including a processor and memory, one or more lenses, one or more reflective mirrors, and a display. In an example method of use, a clinician positions a patient, initiates a focal adjustment, initiates a retinal imaging process, and the same or a different clinician views the image. In some embodiments, the imaging system is configured to analyze the image and identify detected physical attributes in the image relating to the diagnosis and treatment of diabetic retinopathy. | 03-03-2016 |
20160066778 | OPHTHALMOLOGIC APPARATUS AND OPHTHALMOLOGIC APPARATUS CONTROL METHOD - An ophthalmologic apparatus acquires a plurality of images by photographing a plurality of different regions of an eye at different times to generate one image by using the acquired plurality of images. The ophthalmologic apparatus includes a determination unit configured to determine, in the plurality of regions, at least one region that does not include any region actually photographed as the plurality of images, and a control unit configured to control the ophthalmologic apparatus in such a way as to capture an image of the determined region of the eye. | 03-10-2016 |
20160066779 | IMAGE PROCESSING APPARATUS AND CONTROL METHOD OF IMAGE PROCESSING APPARATUS - An image processing apparatus generates one image by using at least one frame each of a plurality of moving images obtained by taking moving images of a plurality of different regions of an eye at different times. The apparatus includes a deciding unit configured to decide the at least one frame in each of the plurality of moving images, so that regions which have actually been shot are included in the plurality of moving images in the plurality of regions; and an image generating unit configured to generate one image by using the at least one frames decided from each of the plurality of moving images. | 03-10-2016 |
20160066780 | Methods and Apparatus for Assessment of Refractive Condition - In exemplary implementations of this invention, an aberrometer is used to measure the refractive condition of any eye. An artificial light source emits light that travels to a light sensor. Along the way, the light enters and then exits the eye, passes through or is reflected from one or more spatial light modulators (SLMs), and passes through an objective lens-system. The SLMs modify a bokeh effect of the imaging system (which is only visible when the system is out-of-focus), creating a blurred version of the SLM patterns. The light sensor then captures one or more out-of-focus images. If there are refractive aberrations in the eye, these aberrations cause the SLM patterns captured in the images to be distorted. By analyzing differences between the distorted captured patterns and the undistorted SLM patterns, refractive aberrations of the eye can be computed and an eyewear measurement generated. | 03-10-2016 |
20160066783 | OPHTHALMOSCOPE SYSTEM FOR ENHANCED IMAGE CAPTURE - A system may comprise an ophthalmoscope having a proximal end, a distal end, and a body portion with a light receptacle. The system may include a control assembly having a first side with a coupler configured to engage the proximal end of the ophthalmoscope and an extension arm configured to engage the body portion of the ophthalmoscope. The control assembly may further include a second side configured to engage a computing device having a camera and a camera flash. The control assembly may further include a sensor configured to detect light from the camera flash, a light source configured to be received in at least a portion of the light receptacle, and a circuit board configured to operatively connect the sensor and the light source. The circuit board is configured to trigger the light source in response to the camera flash. | 03-10-2016 |
20160066784 | OPHTHALMOLOGIC APPARATUS - Provided is an ophthalmologic apparatus including one dichroic mirror, which is arranged eccentrically with respect to an optical axis of light from an eye to be inspected to separate the light from the eye to be inspected; another dichroic mirror, which is configured to separate light separated by the one dichroic mirror by being transmitted through the one dichroic mirror; and a positive lens, which is configured to guide the light from the eye to be inspected to the one dichroic mirror as convergent light, and to guide the light from the eye to be inspected to the another dichroic mirror as divergent light, wherein an eccentric section of the one dichroic mirror and an eccentric section of the another dichroic mirror have a positional relationship of being substantially perpendicular to each other and having substantially the same eccentric amount, to thereby correct astigmatism. | 03-10-2016 |
20160066785 | System And Method for Visualization of Ocular Anatomy - A system for visualization of eye anatomy includes at least one camera having a view vector along a first axis when in a first position, a housing to which the camera is coupled, wherein the housing engages the head of a patient such that the camera is positioned adjacent an eye of the patient, and an actuator that moves the camera from the first position to a second position with a view vector along a second axis that is offset from the first axis. A method of visualization of eye anatomy includes engaging a patient's head with a housing, positioning at least one camera coupled to the housing adjacent an eye, wherein the camera has a view vector along a first axis when in a first position, and moving the camera to a second position with a view vector along a second axis that is offset from the first axis. | 03-10-2016 |
20160070345 | INFORMATION OBSERVATION METHOD AND INFORMATION OBSERVATION DEVICE - The present application discloses an information observation method and an information observation apparatus, and relates to the field of multimedia information processing technologies. The method comprises: detecting a position of a sightline focusing point of an observer; in response to that it is detected that the sightline focusing point of the observer moves away from an observed object, judging whether the observer has observed all important information on the observed object; and in response to that it is judged that the observer has not observed all important information on the observed object, reminding the observer. For the method and the apparatus in embodiments of the present application, from the perspective of an actual observation behavior of an observer, a position of a sightline focusing point of the observer is detected to determine an observation behavior of the observer for important information, so as to radically prevent missing of important information. | 03-10-2016 |
20160073876 | SCANNING LASER OPHTHALMOSCOPE - A scanning laser ophthalmoscope includes: an irradiation optical system including a laser light source and an optical scanner; a light receiving optical system including first to third photo detectors; and a processor. The light receiving optical system includes a wavelength separator causing the light of a first wavelength range to be received by the first photo detector, the light of a second wavelength range to be received by the second photo detector, and the light of a third wavelength range to be received by the third photo detector. The processor generates a first fundus image on the basis of the light reception signal from the first photo detector, a second fundus image on the basis of the light reception signal from the second photo detector, and a third fundus image on the basis of the light reception signal from the third photo detector. | 03-17-2016 |
20160073877 | EYE IMAGING APPARATUS AND SYSTEMS - Various embodiments of an eye imaging apparatus are disclosed. In some embodiments, the eye imaging apparatus may comprise a light source, an image sensor, a hand-held computing device, and an adaptation module. The adaptation module comprises a microcontroller and a signal processing unit configured to adapt the hand-held computing device to control the light source and the image sensor. In some embodiments, the imaging apparatus may comprise an exterior imaging module to image an anterior segment of the eye and/or a front imaging module to image a posterior segment of the eye. The eye imaging apparatus may be used in an eye imaging medical system. The images of the eye may be captured by the eye imaging apparatus, transferred to an image computing module, stored in an image storage module, and displayed in an image review module. | 03-17-2016 |
20160073878 | EYE IMAGING APPARATUS AND SYSTEMS - Various embodiments of an eye imaging apparatus are disclosed. In some embodiments, the eye imaging apparatus may comprise a light source, an image sensor, a hand-held computing device, and an adaptation module. The adaptation module comprises a microcontroller and a signal processing unit configured to adapt the hand-held computing device to control the light source and the image sensor. In some embodiments, the imaging apparatus may comprise an exterior imaging module to image an anterior segment of the eye and/or a front imaging module to image a posterior segment of the eye. The eye imaging apparatus may be used in an eye imaging medical system. The images of the eye may be captured by the eye imaging apparatus, transferred to an image computing module, stored in an image storage module, and displayed in an image review module. | 03-17-2016 |
20160085089 | VISION MODIFICATION WITH REFLECTED IMAGE - Various embodiments of methods and systems for improving and enhancing vision are disclosed. Adjustable lenses or optical systems may be used to provide adaptive vision modification. In some embodiments, vision modification may be responsive to the current state of the user's visual system. Certain embodiments provide correction of the subject's near and far vision. Other embodiments provide enhancement of vision beyond the physiological ranges of focal length or magnification. | 03-24-2016 |
20160089015 | METHOD FOR CORRECTING AN OCT IMAGE AND COMBINATION MICROSCOPE - A method for improving an OCT image of an object such as the retina of an eye, using optical coherence tomography by an imaging beam path. In order to suppress shadowing effects due to a surgical instrument moved in the imaging beam path, a time series of OCT images is produced. For an OCT image to be corrected, an area of the object lying in the image and shadowed by the instrument is determined. Another earlier OCT image in which the area of the object is not shadowed is searched in the time series. Image information for the area of the object is read from the earlier OCT image. A corrected OCT image is produced by inserting the read-image information into the OCT image to be corrected, wherein in the OCT image to be corrected, the image information replaces the area of the object which is shadowed by the instrument. | 03-31-2016 |
20160089016 | FUNDUS PHOTOGRAPHING APPARATUS WITH WAVEFRONT COMPENSATION AND METHOD FOR PHOTOGRAPHING FUNDUS IMAGE - A method for photographing a fundus image includes: acquiring photographing condition data on a first captured image being a cell image of a fundus as reference data for follow-up image capture related to the cell image, and storing the photographing condition data; and selecting, based on an operation input from an examiner, reference data for the follow-up image capture from one or more pieces of the reference data stored in advance, and reproducing a photographing condition in accordance with the selected reference data to newly acquire the cell image. | 03-31-2016 |
20160089019 | PARALLEL OPTICAL COHERENCE TOMOGRAPHY APPARATUSES, SYSTEMS, AND RELATED METHODS - Provided is a snapshot spectral domain optical coherence tomographer comprising a light source providing a plurality of beamlets; a beam splitter, splitting the plurality of beamlets into a reference arm and a sample arm; a first optical system that projects the sample arm onto multiple locations of a sample; a second optical system for collection of a plurality of reflected sample beamlets; a third optical system projecting the reference arm to a reflecting surface and receiving a plurality of reflected reference beamlets; a parallel interferometer that provides a plurality of interferograms from each of the plurality of sample beamlets with each of the plurality of reference beamlets; an optical image mapper configured to spatially separate the plurality of interferograms; a spectrometer configured to disperse each of the interferograms into its respective spectral components and project each interferogram in parallel; and a photodetector providing photon quantification. | 03-31-2016 |
20160089020 | OPHTHALMOLOGIC IMAGING APPARATUS AND OPHTHALMOLOGIC IMAGE DISPLAY APPARATUS - An embodiment provides a new technique of ophthalmologic diagnostic imaging. An ophthalmologic imaging apparatus of an embodiment includes: an acquiring part configured to acquire three-dimensional image data of an eye by using optical coherence tomography; a designating part configured for designating partial image data that is a part of the three-dimensional image data corresponding to a specific site of the eye; a deforming part configured to deform the three-dimensional image data such that the partial image data is deformed into a predetermined shape to create new three-dimensional image data; a forming part configured to form cross-sectional image data based on the new three-dimensional image data; and a display controller configured to display an image based on the cross-sectional image data on a display means. | 03-31-2016 |
20160089021 | Photorefraction Ocular Screening Device and Methods - A photorefraction ocular screening device for assessing vision and corresponding disorders associated with the human ocular system is provided. More specifically, the present invention provides for a photorefraction ocular screening device employing advanced methods of pupil detection and refractive error analysis. The photorefraction ocular screening device is comprised of an LED arrangement configured with a plurality of irradiation sources serving as visual stimuli, wherein the visual stimuli may be presented in varying illumination patterns to the pupils of an examinee for expanding the range of ocular responses that can be used to determine refractive error. | 03-31-2016 |
20160089023 | DEFORMABLE MIRROR SYSTEM, CONTROL METHOD THEREFOR, AND OPHTHALMIC APPARATUS - For reducing a time utilized in an AO process, provided is a deformable mirror system, including: a deformable mirror capable of changing a shape of a reflecting surface by a deformation amount in accordance with an input signal; a light wavefront measurement apparatus configured to measure a light wavefront shape of reflected light from the deformable mirror; a conversion factor calculation apparatus configured to calculate a conversion factor used in obtaining the input signal from a variation in light wavefront shape of the reflected light with respect to a change in input signal; a shape difference calculation apparatus configured to calculate a shape difference between the light wavefront shape measured by the light wavefront measurement apparatus and a light wavefront shape calculated from the input signal; and a conversion factor update unit configured to update the conversion factor in accordance with the calculated shape difference. | 03-31-2016 |
20160089024 | OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes a reflective member that reflects light from a first scanning unit that scans an object to be examined with first light and light from a second scanning unit that scans the object with second light having a wavelength different from a wavelength of the first light so as to be applied to the object. The ophthalmologic apparatus includes an optical path synthesis and separation unit that is arranged on two optical paths from the scanning units to the reflective member, and synthesizes two optical paths from the scanning units to the object and separates an optical path of return light from the object into two optical paths on which the scanning units are arranged. A reflection optical path of the optical path synthesis and separation unit is arranged opposite to the object with respect to the optical path synthesis and separation unit. | 03-31-2016 |
20160095515 | SYSTEMS AND METHODS FOR MEASURING POSITION AND BOUNDARY OF LENS CAPSULE AND IMPLANTED INTRAOCULAR LENS IN EYE IMAGING - Embodiments of this invention generally relate to systems and methods for eye imaging, and more particularly to measuring the size and position of the lens capsule and of the implanted intraocular lens. In one embodiment, a method for measuring the size and position of the lens capsule and of the implanted intraocular lens comprises generating and emitting one or more light beams at an angle adjacent to the eye, generating one or more eye images, and detecting the position and/or boundary of a lens capsule from its shadow casted by reflected light on the iris. | 04-07-2016 |
20160100752 | Predicting Retinal Degeneration Based On Three-Dimensional Modeling Of Oxygen Concentration - In some example implementations, there is provided a method for predicting retinal degeneration in multiple eye diseases. The method may include receiving three-dimensional data representative of a plurality of layers of a retina of a subject under test; determining, from the received data, oxygen concentration at one or more of the plurality of layers; detecting, based on the determined oxygen concentration, a region of at least one a high oxygen concentration in the retina or a low oxygen concentration in the retina; and comparing the detected region to reference data to determine whether the retina including the detected region suffers from or will suffer from at least one of a retinal disease or a degeneration of the retina. Related apparatus are also disclosed. | 04-14-2016 |
20160100756 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes a planar image acquisition unit configured to acquire a planar image of a subject, a tomographic image acquisition unit configured to acquire a tomographic image indicating a polarization state of the subject, and a display control unit configured to cause a display unit to display the planar image and the tomographic image indicating the polarization state side by side. | 04-14-2016 |
20160100757 | Ocular Fundus Camera System and Methodology - An ocular fundus camera system and an associated methodology. The system includes (a) an image sensor disposed along a fundus-image reflection path adjacent that path's downstream end, and in optical communication with light carried in this path, (b) an aperture centered on the reflection path's long axis, operatively associated with, and stationary with respect to, the sensor at a location which is upstream from the sensor, and (c), for accomplishing (1) precision fundus-image focusing on the sensor, and additionally (2) autorefraction, optical, light-content shifting structure, operable selectively for producing, within that portion of the reflection path which is disposed downstream from the shifting structure, relative trans-axial displacement solely of any non-collimated light carried in that portion of the main path which is disposed upstream from the shifting structure. | 04-14-2016 |
20160103338 | EYEWEAR PUPILOMETER - The embodiments disclose an apparatus including an eyewear pupilometer for detecting, measuring and processing a wearer's pupil movement and size, for detecting and processing retinal images, for detecting and processing a wearer's field of view, for broadcasting alerts, for pre-diagnostic screening, for overriding vehicle operation and for measuring, recording and transmitting circadian responses, at least one eyewear pupilometer module including a lens fiber optic camera module, an image processor module, a retinal image infrared detector module, an outward camera module, at least one alert module, an alert light and message projector, a WI-FI module, an automated pullover module, an automated steering module, fiber optic & data cables, a contact lens pupilometer image, sensor and processor module, and at least one eyewear pupilometer module coupled to and/or embedded into eyewear frames and lenses, contact lenses, a vehicle wind shield and protective covers for hand held devices and laptop computers. | 04-14-2016 |
20160106310 | DATA PROCESSING METHOD AND OCT APPARATUS - According to one embodiment, a data processing method is used for processing collected data acquired with respect to each A-line by swept-source OCT using a wavelength sweeping light source having a predetermined wavelength sweeping range. The data processing method detects a reference signal assigned in advance to a clock, the wavenumber of which linearly varies along the time axis, in a predetermined wavelength position within the predetermined wavelength sweeping range. Then, the data processing method sequentially performs sampling of the collected data based on the clock with reference to the predetermined wavelength position where the reference signal detected is assigned. Further, the data processing method forms an image of a corresponding A-line based on the sampled collected data. | 04-21-2016 |
20160106311 | Method And System For Simultaneous Decomposition Of Multiple Hyperspectral Datasets And Signal Recovery Of Unknown Fluorophores In A Biochemical System - A system and method are for analyzing fluorescence of fluorophors in an eye using a non-negative matrix factorization (NMF) method. The NMF method may be initialized with Gaussian mixture model fits and may optionally be constrained to provide identical abundance images for data obtained in response to two or more excitation wavelengths. | 04-21-2016 |
20160106312 | DATA PROCESSING METHOD AND OCT APPARATUS - According to one embodiment, a data processing method is used for processing collected data acquired with respect to each A-line by swept-source OCT using a wavelength sweeping light source having a predetermined wavelength sweeping range includes. The data processing method detects a reference signal assigned to a predetermined wavelength position within the predetermined wavelength sweeping range. The data processing method sequentially performs the sampling of the collected data based on a clock from a clock generator configured to operate independently of the wavelength sweeping light source with reference to the predetermined wavelength position where the reference signal detected is assigned. The data processing method forms an image of a corresponding A-line based on the collected data. | 04-21-2016 |
20160106313 | IMAGE PROCESSING DEVICE AND METHOD, RECORDING MEDIUM AND PROGRAM - There is provided an image processing device including a motion vector detection portion that performs comparison of a substantially spherical photographic subject such that, among a plurality of captured images including the photographic subject, an image as a processing target and another image as a comparison target are compared using each of the plurality of captured images as the processing target, and which detects a motion vector of a whole three-dimensional spherical model with respect to the processing target, a motion compensation portion that performs motion compensation on the processing target, based on the motion vector of each of the plurality of captured images that is detected by the motion vector detection portion, and a synthesis portion that synthesizes each of the captured images that are obtained as a result of the motion compensation performed by the motion compensation portion. | 04-21-2016 |
20160106314 | METHOD OF MOTION CORRECTION IN OPTICAL COHERENCE TOMOGRAPHY IMAGING - An image data set acquired by an optical coherence tomography (OCT) system is corrected for effects due to motion of the sample. A first set of A-scans is acquired within a time short enough to avoid any significant motion of the sample. A second more extensive set of A-scans is acquired over an overlapping region on the sample. Significant sample motion may occur during acquisition of the second set. A-scans from the first set are matched with A-scans from the second set, based on similarity between the longitudinal optical scattering profiles they contain. Such matched pairs of A-scans are likely to correspond to the same region in the sample. Comparison of the OCT scanner coordinates that produced each A-scan in a matching pair, in conjunction with any shift in the longitudinal scattering profiles between the pair of A-scans, reveals the displacement of the sample between acquisition of the first and second A-scans in the pair. Estimates of the sample displacement are used to correct the transverse and longitudinal coordinates of the A-scans in the second set, to form a motion-corrected OCT data set. | 04-21-2016 |
20160106369 | A SYSTEM FOR VISUALIZING BODY AREAS - The invention is a system comprising an adaptor ( | 04-21-2016 |
20160113485 | OPTICAL TOMOGRAPHIC IMAGING DEVICE - An optical tomographic imaging device configured to acquire a tomographic image of a tissue of an object, includes: a dividing device configured to divide a light beam emitted from a light source into measurement light and reference light; a combining device configured to combine the measurement light, which is separated by the dividing device and is reflected from the tissue, with the reference light so as to generate interference light for acquiring the tomographic image; a plurality of irradiation devices, each of the plurality of irradiation devices being configured to guide the measurement light and irradiate the tissue with the measurement light: and a switching device configured to switch the plurality of irradiation devices from one to another and select one of the plurality of irradiation devices to cause the selected irradiation device to irradiate the measurement light output from the dividing device with tissue. | 04-28-2016 |
20160113487 | CONTACT-TYPE OPHTHALMOSCOPE - A contact-type ophthalmoscope includes a contact lens, an annular illumination module, an imaging lens group and an image capture module. The contact lens having a concave surface is configured for contacting an eyeball. The annular illumination module arranged close to the contact lens is configured for providing a direct illumination light source to illuminate a fundus of the eyeball. The imaging lens group is disposed in the central hollow portion of the annular illumination module and configured for converging the reflected light from the fundus of the eyeball. The image capture module is configured for capturing the reflected light converged by the imaging lens group to form an image. The above-mentioned contact-type ophthalmoscope has advantages of better illumination efficiency, compactness and less scattered light reflected from the imaging lens. | 04-28-2016 |
20160113488 | FUNDUS PHOTOGRAPHING APPARATUS - The fundus photographing apparatus of the present invention includes an illumination light source that generates illumination light flux for illuminating a fundus (of a subject eye), a scanning optical system that converts the illumination light flux from the illumination light source unit into spot light to scan the fundus in two-dimensional directions of a horizontal direction and a vertical direction by the spot light, a light receiver that receives reflected light from each portion of the fundus illuminated by the spot light, and a fundus image acquiring unit that acquires a fundus image based on a signal from the light receiver, wherein the scanning optical system is provided with a scanner including a reflection mirror plate that rotates about orthogonal two axes to simultaneously deflect the spot light in the vertical direction and the horizontal direction for scanning. | 04-28-2016 |
20160113489 | MODULAR LENS ADAPTERS FOR MOBILE ANTERIOR AND POSTERIOR SEGMENT OPHTHALMOSCOPY - A modular lens adapter system or kit is provided for mobile anterior and posterior segment ophthalmoscopy. Equipped with various lens adapter modules, respective lenses and a mobile imaging device, a user is provided with tools for various mobile ophthalmoscopy imaging applications. Eye care practitioners can use their existing lenses to customize the modular lens adapter system in a cost-effective way, which allows for mobile and remote capture, viewing, and utilization of clinical images. The various modules are also adaptable to nearly any type of phone or tablet regardless of its dimensions or presence of a protective case. The invention also addresses the need for fewer, smaller, less expensive, and easier to use ophthalmic imaging equipment, which is further important in enabling a broad base of users. | 04-28-2016 |
20160120400 | METHOD FOR REALIZING OCULAR FUNDUS PHOTOGRAPHS THAT ARE CORRECTED FOR SCATTERED LIGHT - A method by which fundus photographs that are corrected for scattered light can be realised by using a digital fundus camera. The fundus is illuminated and a photograph of the fundus is realized. The photographed area is greater than the illuminated are. The scattered light intensity is determined and is used for correction. Measurement points for determining the scattered light intensity are defined in the non-illuminated area. Values of the scattered light intensity determined at the measurement points are averaged. Average-scattered light intensity thus determined is subtracted from the intensity values of the photograph to correct the photograph. | 05-05-2016 |
20160120401 | Optical Tomographic Imaging Apparatus - An optical tomographic imaging apparatus capable of acquiring a two-dimensional or/and three-dimensional tomographic image having higher SNR and quality by cancelling phase change caused by birefringence of a sample in average processing using a predetermined kernel region, and calculating a global phase difference of each pixel in the kernel. The optical tomographic imaging apparatus includes a processing unit configured to: set a predetermined kernel to a B scan image or/and C scan image (volume data) acquired corresponding to a Jones matrix; model the Jones matrix of each pixel in the set predetermined kernel by using one or more unitary matrices to calculate a relative global phase of each pixel; and cancel the calculated relative global phase in each pixel in the predetermined kernel to average each element of the Jones matrix in the predetermined kernel. | 05-05-2016 |
20160120404 | OPHTHALMOSCOPE - The invention relates to an ophthalmoscope comprising a camera and an associated illumination device; the invention further concerns a novel method for processing a plurality of images of the eye taken by said device; and software, typically included in said ophthalmoscope, for executing said method. | 05-05-2016 |
20160128566 | Apparatus and Method of Determining an Eye Prescription - Eye prescriptions may be determined by providing a simple, easy to use, portable device with a specially configured targeting light source that aligns the eye, mitigates accommodation, and provides accurate results. Unlike stationary, closed view autorefractors, this device typically is portable, self-usable, relatively inexpensive, enabling more widespread use across the world. | 05-12-2016 |
20160128569 | OPHTHALMOSCOPE - An ophthalmoscope comprises an illumination element providing an illumination light beam to illuminate the fundus of an eyeball; an imaging lens group converging the reflected light beam from the fundus; and an image capture module. The image capture module includes an image sensing element, a fixation light element and an optical element. The image sensing element captures the reflected light beam converged by the imaging lens group to form an image. The fixation light element provides a fixation light beam passing through the imaging lens group and reaching the fundus. The optical element is arranged among the imaging lens group, image sensing element and fixation light element to make the image sensing element and the fixation light element on different equivalent focal planes of the imaging lens group. According to the above-mentioned structure, a relay lens and a focusing module used by the conventional fixation light element is omitted. | 05-12-2016 |
20160128570 | OPHTHALMOLOGY - Apparatus for illuminating the retina of an eye. The apparatus includes an illumination device and a lens system. The illumination device and the lens system combine to provide incident illumination from an apparent point source located within the lens system. The apparatus also includes an illumination transfer device. The illumination transfer device has two foci and the apparent point source of the lens system is provided at a first focus point of the illumination transfer device and an eye is accommodated at a second focus point of the illumination transfer device. The illumination transfer device transfers the incident illumination from the apparent point source into the eye to illuminate the retina. | 05-12-2016 |
20160135675 | SYSTEM FOR DETECTING OPTICAL PARAMETER OF EYE, AND METHOD FOR DETECTING OPTICAL PARAMETER OF EYE - An optical parameter of an eye is detected using an image collection apparatus that collects an image presented by a fundus. An imaging apparatus adjusts an imaging parameter of an optical path between an eye and the image collection apparatus, wherein the image collection apparatus obtains a clearest image that satisfies a defined clarity criterion or condition. An image processing apparatus processes the clearest image to obtain an optical parameter of the eye. The image of the fundus is captured, and an imaging parameter known in the optical path when the clearest image is captured is found, so that a direction currently being watched by the eye and a distance between the eye and a focusing point can be obtained through optical calculation. Consequently, a position of the focusing point of the eye can be determined precisely for a wide range of concurrent applications for eye control interaction. | 05-19-2016 |
20160135678 | Method For Determining Wave-Front Aberration Data Of A To-Be-Tested Optical System - A method for determining wave-front aberration data of a to-be-tested optical system comprising the steps of: a) providing a wave-front sensing image of light received from the tested optical system; b) providing a model representative of the optical system with at least an optical parameter representative of said model; and c) optimizing a set of wave-front coefficient data and said at least optical parameter of said model according to a merit function calculating the merit function comprises the steps of generating a wave-front sensing modeled image of light received from said model by the at least optical parameter and the set of wave-front coefficient data, and calculating a criteria based on shape parameter data of the wave-front sensing image and shape parameter data of the wave-front sensing modeled image, so as to obtain wave-front aberration data of the tested optical system. | 05-19-2016 |
20160135680 | WAVEFRONT ANALYSER - Interferometry-based methods and apparatus are presented for analysing one or more wavefronts from a sample, in which the sample wavefronts are interfered with two or more reference wavefronts to produce two or more interferograms in a sufficiently short time period for the interferograms to be captured in a single exposure of an image capture device such as a CCD array. Each interferogram has a unique carrier frequency dependent on the angle between a respective pair of sample and reference wavefronts. In certain embodiments multiple sample and/or reference wavefronts are generated using scanning mirrors, while in other embodiments utilising multi-wavelength beams multiple sample and/or reference wavefronts are generated with wavelength dispersive elements. The methods and apparatus are suitable for measuring aberrations at one or more positions on the retina of an eye. | 05-19-2016 |
20160135682 | Simultaneous Capture of Filtered Images of the Eye - A multimode fundus camera enables three-dimensional and/or spectral/polarization imaging of the interior of the eye to assist in improved diagnosis. | 05-19-2016 |
20160135683 | OPTICAL COHERENCE TOMOGRAPHY APPARATUS FOR SELECTIVELY VISUALIZING AND ANALYZING VASCULAR NETWORK OF CHOROIDAL LAYER, AND IMAGE-PROCESSING PROGRAM AND IMAGE-PROCESSING METHOD FOR THE SAME - From OCT-measured data, only the image data of the choroidal vascular network present in the layer of the choroidal layer is selectively extracted, thereby accurately obtaining the thickness of the choroidal vessels and thickness of the choroidal vascular network from the image data, to allow for quantitative evaluation of the choroidal vascular network. The optical coherence tomography apparatus has an optical coherence tomography device, and a computer that processes the three-dimensional OCT tomographic images obtained based on the OCT-measured data acquired by the optical coherence tomography device. The computer functions as a means for selectively separating out only the images of the choroidal vessels from the three-dimensional OCT tomographic images to acquire image data of the choroidal vessels, and also as a means for obtaining the data to be used in the quantitative evaluation of the shape of the choroidal vessels based on the image data of the choroidal vessels. | 05-19-2016 |
20160139390 | MULTIPASS VIRTUALLY IMAGED PHASED ARRAY ETALON - An example system determines biomechanical properties of eye tissue. The system includes a confocal microscopy system configured to scan the incident light across a plurality of cross-sections of the tissue. The incident light is reflected by the plurality of cross-sections of tissue as scattered light. The system includes a spectrometer to receive the scattered light and provide spectral information for the scattered light. The system includes processor(s) to determine a Brillouin frequency shift from the spectral information and to generate a three-dimensional profile of the corneal tissue according to the Brillouin frequency shift. The three-dimensional profile provides an indicator of one or more biomechanical properties of the tissue. The spectrometer includes a multipass optical device that generates an interference pattern from the scattered light. The interference pattern provides the spectral information for the scattered light. The spectrometer includes a camera to detect the interference pattern from the optical device. | 05-19-2016 |
20160143523 | OPHTHALMOLOGICAL APPARATUS - An ophthalmological apparatus includes a photographing mode selection processor that selects any one of a plurality of photographing modes including a color photographing mode and a fluorescent photographing mode, a photographic optical system that photographs a subject's eye in a photographing mode selected by the photographing mode selection processor, a vision fixation optical system including a vision fixation target display that displays a vision fixation target, the vision fixation optical system projecting an image of the vision fixation target displayed in the vision fixation target display on the subject's eye, and a control processor that changes an amount of light of the vision fixation target in accordance with the photographing mode selected by the photographing mode selection processor. | 05-26-2016 |
20160143524 | COUPLED RECONSTRUCTION OF REFRACTIVE AND OPAQUE SURFACES - Systems and techniques for reconstructing one or more surfaces of an object including one or more opaque surfaces behind one or more refractive surfaces are provided. The systems and techniques may include obtaining one or more images of the object including an opaque surface located behind a refractive surface and determining one or more refractive surface constraints using the one or more images. The one or more refractive surface constraints constrain one or more characteristics of the refractive surface. The systems and techniques may further include reconstructing an opaque surface representation or a refractive surface representation using the one or more refractive surface constraints, the opaque surface representation representing the opaque surface of the object, and the refractive surface representation representing the refractive surface of the object. | 05-26-2016 |
20160143525 | ADAPTIVE INFRARED RETINOSCOPIC DEVICE FOR DETECTING OCULAR ABERRATIONS - An ocular system for detecting ocular abnormalities and conditions creates photorefractive digital images of a patient's retinal reflex. The system includes a computer control system, a two-dimensional array of infrared irradiation sources and a digital infrared image sensor. The amount of light provided by the array of irradiation sources is adjusted by the computer so that ocular signals from the image sensor are within a targeted range. Enhanced, adaptive, photorefraction is used to observe and measure the optical effects of Keratoconus. Multiple near infrared (NIR) sources are preferably used with the photorefractive configuration to quantitatively characterize the aberrations of the eye. The infrared light is invisible to a patient and makes the procedure more comfortable than current ocular examinations. A lens system is used to remove any low order aberrations present in the patient's eye and improve the detection sensitivity of the system. | 05-26-2016 |
20160143528 | GAZE TRACKING SYSTEM - A method, including illuminating an eye with light from a light source ( | 05-26-2016 |
20160150950 | IMAGING TO FACILITATE OBJECT OBSERVATION | 06-02-2016 |
20160150951 | IMAGING FOR LOCAL SCALING | 06-02-2016 |
20160150953 | OPHTHALMIC PHOTOGRAPHING APPARATUS | 06-02-2016 |
20160150954 | OPTICAL COHERENCE TOMOGRAPHY DEVICE AND CONTROL PROGRAM | 06-02-2016 |
20160150955 | METHOD OF MEASURING AND ANALYZING OCULAR RESPONSE IN A SUBJECT USING STABLE PUPILLARY PARAMETERS WITH VIDEO OCULOGRAPHY SYSTEM | 06-02-2016 |
20160157710 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - To accurately position multiple tomographic image. | 06-09-2016 |
20160157713 | OPTICAL COHERENCE TOMOGRAPHIC APPARATUS - An optical coherence tomographic apparatus which obtains a tomographic image of an object based on light obtained by combining return light from the object irradiated with measurement light through a first lens and reference light corresponding to the measurement light, the apparatus comprises a scanning unit provided on an optical path of the measurement light and configured to scan the measurement light on the object; a second lens disposed between the scanning unit and the object; an optical path branching unit disposed between the first lens and the second lens and configured to make the optical path of the measurement light branch off to an observation optical path for observation of the object; a dividing unit that splits light emitted from a light source into the measurement light and the reference light; and a focus lens disposed between the dividing and scanning units. | 06-09-2016 |
20160157715 | SYSTEM, METHOD AND COMPUTER ACCESSIBLE MEDIUM FOR DETERMINING EYE MOTION BY IMAGING RETINA AND PROVIDING FEEDBACK FOR ACQUISITION OF SIGNALS FROM THE RETINA - The human eye is constantly in motion. For many imaging applications in the eye, eye motion on the time scale of the image acquisition distorts the images. For imaging applications where the signal is very low, image distortion is so severe that imaging is impossible. According to an exemplary embodiment of the present disclosure, systems, methods and computer-accessible medium can be provided to determine eye motion in real time, and provide real time correction of the eye motion for secondary imaging methods to provide stable images and permit long integration times of single images to increase the signal to noise. | 06-09-2016 |
20160166141 | QUANTIFYING A BLOOD VESSEL REFLECTION PARAMETER OF THE RETINA | 06-16-2016 |
20160166142 | IMAGE PROCESSING DEVICE AND METHOD, EYE FUNDUS IMAGE PROCESSING DEVICE, IMAGE PHOTOGRAPHING METHOD, AND EYE FUNDUS IMAGE PHOTOGRAPHING DEVICE AND METHOD | 06-16-2016 |
20160166143 | OPHTHALMOLOGIC APPARATUS, TOMOGRAPHIC IMAGE GENERATION METHOD, AND PROGRAM | 06-16-2016 |
20160166144 | Methods for Comprehensive Fourier Domain Optical Coherence Tomography (FDOCT) | 06-16-2016 |
20160174830 | Method and System for Evaluating Progression of Age-Related Macular Degeneration | 06-23-2016 |
20160174831 | OPHTHALMIC APPARATUS, PHOTORECEPTOR CELL DETECTION METHOD AND PROGRAM | 06-23-2016 |
20160174834 | METHOD AND SYSTEM FOR OPTICAL COHERENCE ELASTOGRAPHY OF POSTERIOR PARTS OF THE EYE | 06-23-2016 |
20160174837 | METHOD FOR MEASURING TWO PUPILS AND DUAL-PUPIL MEASURING DEVICE | 06-23-2016 |
20160174839 | OPHTHALMIC APPARATUS, AND TREATMENT SITE MEASURING METHOD FOR THE APPARATUS | 06-23-2016 |
20160183779 | Magnification in Ophthalmic Procedures and Associated Devices, Systems, and Methods - An ophthalmic visualization system can include an imaging device configured to acquire images of a surgical field; a computing device configured to determine an area of interest based on the images; and a display device in communication with the computing device and a surgical microscope, wherein the display device is configured to provide a graphical overlay onto at least a portion of a field of view of the surgical microscope, and wherein the graphical overlay includes a magnified image of the area of interest. A method of visualizing an ophthalmic procedure can include receiving images of a surgical field acquired by an imaging device; identifying an area of interest; generating a graphical overlay including a magnified image of the area of the interest; and outputting the graphical overlay to a display device such that the graphical overlay is positioned over a field of view of a surgical microscope. | 06-30-2016 |
20160183780 | Registration across frame boundaries in AO-SLO capture - A method of compensating for distortion, in a plurality of retinal image frames, arising from eye movement receives at least one reference image frame and plural other image frames of the eye. For each frame, the method determines a plurality of shifts relative to the reference image frame, and an initial eye movement trajectory based on at least an initial reference frame distortion, and the shifts within each of said other image frames. The method estimates a current reference frame distortion using the initial trajectory and the shifts within each of the other image frames, and a current eye movement trajectory based on the estimated current reference frame distortion, and the shifts within each of said other image frames to provide a smooth transition between the other image frames in the eye movement. With this the method compensates for distortion in said frames using the current eye movement trajectory. | 06-30-2016 |
20160183782 | OCT SURGICAL VISUALIZATION SYSTEM WITH MACULAR CONTACT LENS - An ophthalmic visualization system can include an ocular lens positioned between a macular contact lens coupled to a procedure eye and a surgical microscope. The ocular lens can guide a light beam through the macular contact lens and into the procedure eye, and in combination with the macular contact lens generate an intermediate image of the procedure eye at an image plane between the procedure eye and the surgical microscope. The system can include a reduction lens positioned in the optical path between the surgical microscope and the ocular lens. The reduction lens and/or ocular lens can align a focus plane of the surgical microscope with the image plane. A method of visualizing a procedure eye in an ophthalmic procedure can include positioning an ocular lens and a reduction lens between a macular contact lens and a surgical microscope; and scanning the procedure eye with a light beam. | 06-30-2016 |
20160183783 | SYSTEMS AND METHODS FOR AUTOMATED CLASSIFICATION OF ABNORMALITIES IN OPTICAL COHERENCE TOMOGRAPHY IMAGES OF THE EYE - Systems and methods for classifying abnormalities within optical coherence tomography images of the eye are presented. One embodiment of the present invention is the classification of pigment epithelial detachments (PEDs) based on characteristics of their internal reflectivity, size and shape. The classification can be based on selected subsets of the data located within or surrounding the abnormalities. Training data can be used to generate the classification scheme and the classification can be weighted to highlight specific classes of particular clinical interest. | 06-30-2016 |
20160183785 | PHOTOGRAPHY APPARATUS AND PHOTOGRAPHY METHOD - To accurately position a past photography position and a photography position this time in follow up using polarization OCT images. | 06-30-2016 |
20160183787 | APPARATUS AND METHOD FOR DETERMINING THE ORIENTATION OF ANATOMICAL CORNEA STRUCTURES - An apparatus for determining an orientation of anatomical cornea structures includes: a lighting device, configured to direct a first luminous radiation, polarized with an orientable polarization direction, towards a cornea, when the cornea is in an observation seat; a control device, configured to modify an orientation of the polarization direction; an image acquisition device, arranged so as to receive a second luminous radiation, transmitted through the cornea arranged in the observation seat and illuminated by the first luminous radiation; and an acquisition polarizing filter, arranged so as to intercept the second luminous radiation directed towards the image acquisition device. | 06-30-2016 |
20160192835 | SYSTEM FOR EYE EXAMINATION BY MEANS OF STRESS-DEPENDENT PARAMETERS | 07-07-2016 |
20160192837 | PUPILLOMETRY SYSTEMS, METHODS, AND DEVICES | 07-07-2016 |
20160198939 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD | 07-14-2016 |
20160198940 | OPHTHALMOLOGIC APPARATUS | 07-14-2016 |
20160198945 | OPHTHALMIC APPARATUS, CONTROL METHOD, AND COMPUTER READABLE STORAGE MEDIUM | 07-14-2016 |
20160198951 | OPHTHALMOLOGIC IMAGING APPARATUS | 07-14-2016 |
20160198952 | Imaging Device | 07-14-2016 |
20160249799 | FULL-EYE ILLUMINATION OCULAR SURFACE IMAGING OF AN OCULAR TEAR FILM FOR DETERMINING TEAR FILM THICKNESS AND/OR PROVIDING OCULAR TOPOGRAPHY | 09-01-2016 |
20160249802 | EYEBALL OPTICAL MEASURING INSTRUMENT, EYEBALL OPTICAL MEASURING METHOD, AND METHOD FOR IRRADIATING AN EYEBALL AND DETECTING LIGHT COMING FROM EYEBALL | 09-01-2016 |
20160249805 | AUXILIARY FLASH ASSEMBLY FOR A MEDICAL INSTRUMENT | 09-01-2016 |
20160374547 | IMAGE PROCESSING APPARATUS, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM STORING PROGRAM - An image processing apparatus includes: a tomographic image acquisition unit that acquires a first tomographic image of a subject's eye captured at a first time point that is a past time point; a tomographic image capturing unit that acquires a second tomographic image of the subject's eye captured at a second time point later than the first time point; and an image display control unit that, if one image capturing region of an image capturing region of the first tomographic image and an image capturing region of the second tomographic image is larger than the other image capturing region, performs control to provide, on an image display portion, a display of both a tomographic image of only a partial region of the one image capturing region which is a corresponding region corresponding to the other image capturing region and a tomographic image of the other image capturing region. | 12-29-2016 |
20160374548 | OPHTHALMIC IMAGING APPARATUS AND IMAGE GENERATION METHOD THEREFOR - A processor extracts a reference signal of a scanner included in an adaptive optics SLO apparatus output while the scanner performs reciprocating scanning once on a region of an eye, generates sampling data strings of reciprocating scanning based on an electric signal obtained by a photoelectric conversion unit included in the adaptive optics SLO apparatus using the reference signal as a sampling reference position, and compares, among the sampling data strings of the reciprocating scanning, a sampling data string of forward scanning with a sampling data string of backward scanning so as to evaluate the correlation between the sampling data strings, and compensates a sampling reference position based on a result of the evaluation. An image construction unit assembles image data to construct an image of the region of the eye based on the sampling data strings of the reciprocating scanning in accordance with the compensated sampling reference position. | 12-29-2016 |
20160374552 | OPHTHALMIC APPARATUS - An ophthalmic apparatus capable of suppressing ghost, and securing a necessary amount of working distance even when an eye to be inspected has a diopter on a myopia side, includes: a large area image acquisition unit acquiring a large area image of a fundus of the eye to be inspected at a low resolution based on return light of first measuring light from the fundus; a small area image acquisition unit acquiring a small area image of the fundus at a high resolution based on return light of second measuring light from the fundus; and a dichroic prism combining the first measuring light and the second measuring light, and dividing the return light, in which the large area image acquisition unit includes an optical member having a positive optical power, which is arranged at a position opposite to the eye to be inspected with respect to the dichroic prism. | 12-29-2016 |
20170231484 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM | 08-17-2017 |
20170231489 | OPHTHALMOLOGIC APPARATUS, METHOD OF CONTROLLING OPHTHALMOLOGIC APPARATUS, AND PROGRAM | 08-17-2017 |
20170231491 | OPTICAL EQUIPMENT FOR OBSERVATION OF THE IRIDOCORNEAL ZONE, METHODS OF MEASURING AND/OR EVALUATING THE IRIDOCORNEAL ZONE | 08-17-2017 |
20170231492 | FUNDUS IMAGING APPARATUS AND METHOD FOR CONTROLLING THE SAME, AND STORAGE MEDIUM | 08-17-2017 |
20170231711 | METHODS AND SYSTEMS FOR PULSED ILLUMINATION | 08-17-2017 |
20180020909 | AUTOMATED QUANTIFICATION OF NONPERFUSION IN THE RETINA USING OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY | 01-25-2018 |
20180020912 | OPTICAL COHERENCE TOMOGRAPHY FOR MEASUREMENT ON THE RETINA | 01-25-2018 |
20180020913 | Scanning Method for Uniform, Normal-Incidence Imaging of Spherical Surface with a Single Beam | 01-25-2018 |
20180021101 | METHODS AND SYSTEMS FOR PULSED ILLUMINATION | 01-25-2018 |
20190142269 | OPTICAL MEASUREMENT SYSTEMS AND METHODS WITH CUSTOM CHROMATIC ABERRATION ADJUSTMENTS | 05-16-2019 |
20220133144 | SLIT LAMP MICROSCOPE - A slit lamp microscope according to some aspect examples includes an illumination system and photographing system. The illumination system projects slit light onto an anterior segment of a subject's eye. The photographing system includes an optical system and an image sensor. The optical system directs light from the anterior segment onto which the slit light is being projected. The image sensor includes a light detecting surface that receives the light directed by the optical system. Further, a subject plane, a principal plane of the optical system, and the light detecting surface are arranged so as to satisfy a Scheimpflug condition. Here, the subject plane includes a focal point of the illumination system in which a position of the focal point is shifted on account of a refractive index of a tissue of the anterior segment. | 05-05-2022 |