Brien Holden Vision Institute Limited

Visual Pathways, Inc.

Brien Holden Vision Diagnostics, Inc.

Paul Peterson

Tom N Cornsweet

Brad Bower

Kenneth Wayne Chapman

Frank George Evans

Gary F Buck

A device for monitoring eye movement and pupil response that comprises a first optical pathway for displaying one or more images to the eyes of a patient and a second optical pathway for obtaining images of the eyes of a patient. The device further comprises at least one screen for displaying an image to the left eye of the patient which is not visible to the right eye of the patient and for displaying an image to the right eye of the patient which is not visible to the left eye of the patient; a first camera for capturing images of the left eye of the patient; and a second camera for capturing images of the right eye of the patient at substantially the same time as the first camera is capturing images of the left eye of the patient. The device also comprises at least one IR light source for illuminating the eyes of the patient; and a processor for processing the obtained images and measuring pupil response and/or eye movements.

Systems, methods, and devices for measuring eye movement and pupil response

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.

Ocular fundus camera system and methodology

A fundus camera for photographing a fundus of an eye that includes a plurality of light sources with differing frequencies for illuminating the fundus, a plurality of fixation lights configured to orient the fundus in varying positions, and an imaging sensor. The fundus camera further includes at least one processor configured to cause the illumination of the plurality of light sources and the plurality of fixation lights in a predetermined pattern to obtain a plurality of narrow bandwidth images of the fundus and to manipulate and stitch the resulting narrow bandwidth images into a composite color image.

Ocular fundus imaging systems, devices and methods

A method for evaluating retinal function and testing the visual field of a patient by monitoring how the patient tracks a target image on a display that comprises displaying the target image on the display such that it is located at a first position on the display and visible to the patient. The process continues by identifying what portion of the display the patient is looking at, selecting a location of the patient's retina to test, and calculating, based at least in part on what portion of the display the patient is looking at, a second position on the display corresponding to the selected location of the patient's retina. The target image is displayed at the second position on the display and the process identifies how many eye movements the patient made to look at the target at the second position. Based at least in part on the number of eye movements, the process determines whether the patient was able to see the target at the second position.

Systems, methods and devices for monitoring eye movement to test a visual field

An ocular fundus imager automatically aligns fundus illuminating rays to enter the pupil and to prevent corneal reflections from obscuring the fundus image produced. Focusing the produced fundus image is automatically performed using a pair of video sensors and is based upon the fundus image itself. A head restraint is used to reduce the gross alignment between the optical system and the patient's pupil.

Simplified ocular fundus auto imager

A method is disclosed for quantifying the extent a cataract impairs vision in an eye having a pupil, an ocular lens, and a retina. The method includes illuminating a localized region of the retina such that light is reflected from the localized region and is transmitted through the ocular lens. A portion of the reflected light is scattered by the cataract associated with the ocular lens. Light reflected from the localized region of the retina is collected, and the amount of scatter is measured so as to quantify the extent the scatter impairs vision of the eye.

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Prescott, AZ, United States of America

Paul Peterson