Abstract:
An optical measurement system and apparatus for carrying out cataract diagnostics in an eye of a patient includes a Corneal Topography Subsystem, a wavefront aberrometer subsystem, and an eye structure imaging subsystem, wherein the subsystems have a shared optical axis, and each subsystem is operatively coupled to the others via a controller. The eye structure imaging subsystem is preferably a fourierdomain optical coherence tomographer, and more preferably, a swept source OCT.
Abstract:
Ophthalmic Ultrasound Bio-Microscope (UBM) apparatus for eye examinations of a human subject in a supine position and fixating the gaze of his examined eye on an illuminated overhead fixation target. The ophthalmic UBM apparatus has a vertical UBM examination centerline on which overhead fixation target is located therealong and a UBM scanner with a UBM probe directed towards an examined eye at a known spatial position with respect to the overhead fixation target for acquisition of UBM scans of fixated examined eyes.
Abstract:
A system is disclosed that allows a practitioner to rotate a human subject's head in three- dimensional space using a robotic arm with a head mount attached to one end, while the subject is focused on a visual target.
Abstract:
Portable optical devices are disclosed. In one embodiment, an optical device comprises a light source, a housing having first and second apertures formed therethrough, and a plurality of optical components disposed within the housing. The plurality of optical components are arranged to direct light generated by the light source to the first aperture via a first optical channel; direct light received into the housing through the second aperture to the first aperture via a second optical channel; and direct light received into the housing through the first aperture to a light detector via a third optical channel.
Abstract:
A method and apparatus for fixation measurement includes projecting, by a projection apparatus, a target image onto one or more eyes of a patient and capturing, by one or more image sensing devices disposed conjugate to the one or more eyes, a reflected image reflected from the one or more eyes in response to the target image, wherein the reflected image includes information indicating the fixation of the one or more eyes.
Abstract:
A method for testing a patient's (2) visual field using testing apparatus. A fixation target is provided on a display (3) at a known target position and the patient's (2) direction of gaze is tracked using an eye tracker to determine the patient's point of regard. A marker (5) is provided on the display (3) indicating the patient's (2) point of regard, where the marker (5) moves with movement of the patient's (2) point of regard. It is detected when the marker (5) is moved to the fixation target and a new target is then provided on the display at a further known target position. The new target is recorded as detected if the marker (5) is moved to the new target, with the new target then becoming the fixation target. The steps are repeated for further new targets for determining the patient's (2) visual field based on the positions of the new targets that have been detected.
Abstract:
Die vorliegende Offenbarung bezieht sich auf ein optisches System zur Untersuchung eines Auges mittels optischer Kohärenztomographie. Das OCT-System ist so ausgebildet, dass mittels einer Ansteuerung der variablen Optik zumindest ein erster und ein zweiter Zustand des optischen Systems wahlweise einstellbar sind. Im ersten Zustand weist der OCT-Messstrahl einen Messfokus an einem Objektabstand vom Objektiv auf, wobei der Objektabstand einen Wert zwischen 50 Millimeter und 400 Millimeter aufweist. Im zweiten Zustand weist der Messstrahl am gleichen Objektabstand eine Defokussierung auf, wobei die Defokussierung einem Abstand eines virtuellen oder reellen Fokus von einer Position des Objektabstandes entspricht, welcher größer ist als 100 Millimeter.
Abstract:
Methods and systems for assessing brain injuries, fatigue, autism, subject state, and identity include measuring eye movement of a person. One or more values (e.g., a feature vector) are determined based on the measured eye movements. Based on the determined values, an assessment is made of a person. Methods and systems may be used to assess whether or not a person has suffered brain injury.
Abstract:
An ophthalmoscope device includes a support structure, an image capture device, and a display device. The support structure is configured to be worn by a subject. The image capture device is configured to capture images of the eye fundus of the subject. The display device is configured to overlay images in the field of view of the subject. The overlaid images are used to align the pupil/fovea orientation axis with the optical axis of the image capture device.
Abstract:
An example method for automatically measuring a subject's phoria while the subject fixates on a visual target can include capturing an image of at least one of the subject's eyes using an image capturing device. The image can include a reflection of light from at least one of the subject's eyes. The method can also include analyzing the image to identify a position of the reflection of the light within at least one of the subject's eyes, and determining a phoria measurement based on the position of the reflection of the light within at least one of the subject's eyes.