Patent application number | Description | Published |
20090207377 | Method and System for Improving Accuracy in Autorefraction Measurements by including Measurement Distance Between the Photoreceptors and the Scattering Location in an Eye - A method and associated system improve accuracy in objective refraction measurements by including the measured distance between the photoreceptors of a subjects eye and the scattering location of light during the objective refraction measurements. Chromatic aberrations in the objective measurements are also compensated. The distance between the photoreceptors and the scattering location may be determined by adjusting a distance between a rotating speckled light pattern and an eye until the speckled light pattern appears to be stationary, or by employing a Scheiner disk. | 08-20-2009 |
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 |
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 |
20140268056 | WAVEFRONT INTERACTIVE REFRACTION DISPLAY - Embodiments of this invention generally relate to systems and methods for wavefront interactive refraction display and more particularly to systems and methods for capturing and displaying eye wavefront interactive refraction data based on the desired refractive state of the patient's eye. | 09-18-2014 |
20140342016 | NON-INVASIVE REFRACTIVE TREATMENT USING NANOPARTICLES - Embodiments of this invention generally relate to systems and methods for optical treatment and more particularly to non-invasive refractive treatment method based on sub wavelength particle implantation. In an embodiment, a method for optical treatment identifies an optical aberration of an eye, determines a dopant delivery device configuration in response to the optical aberration of the eye, wherein the determined dopant delivery device is configured to impose a desired correction to the eye to mitigate the identified optical aberration of the eye by applying a doping pattern to the eye so as to locally change a refractive index of the eye. | 11-20-2014 |
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 |
20160000316 | OPTICAL MEASUREMENT SYSTEM AND METHOD WITH TARGET BRIGHTNESS LEVEL ADJUSTMENT - A system and method for measuring a characteristic of an eye of a subject receive data pertaining to the subject; assign the subject to an assigned age category based on the data pertaining to the subject; adjust a brightness level of a fixation target according to the assigned age category for the subject; provide the fixation target for a subject to view; and objectively measure at least one characteristic of the eye of the subject while the subject views the fixation target at the adjusted brightness level. | 01-07-2016 |
20160000318 | OPTICAL MEASUREMENT SYSTEM AND METHOD INCLUDING BLINK RATE MONITOR AND/OR TEAR FILM BREAKUP DETECTOR - An optical measurement system and method measure a characteristic of a subject's eye. The optical measurement system receives from an operator, via a user interface of the optical measurement instrument, a begin measurement instruction indicating the start of a measurement period for objectively measuring at least one characteristic of the subject's eye. Subsequent to receiving the begin measurement instruction, the optical measurement system determines whether a criterion associated with the tear film quality of the subject's eye is not satisfied. In response to determining that the criterion is not satisfied, the optical measurement instrument takes one or more corrective actions to measure the characteristic of the subject's eye under a condition wherein the criterion is satisfied. | 01-07-2016 |