In various embodiments, a head-mounted apparatus having first and second display screens for, respectively, displaying visual content dichoptically to left and right eyes of a user is utilized to treat, improve, or prevent degradation of the user's vision.

The present disclosure relates generally to systems and method for testing and determining corrective lens prescription for a patient. In an example embodiment, a system includes a hand-portable first electronic device, a second electronic device with a computerized screen, and a server to conduct a vision test for a person. The vision test includes determining, an axis prescription, a cylinder prescription, and a sphere prescription for each eye of the person. A corrective lens prescription is provided for the person based, at least in part, on the determined axis, cylinder, and sphere prescription for each eye of the person.

A method of testing a subject for impairment includes presenting the subject with a display of a smoothly moving object, repeatedly moving over a tracking path and, while presenting the display to the subject, measuring the subject's right eye positions and measuring the subject's left eye positions. The method further includes generating a disconjugacy metric by comparing the measured right eye positions with the measured left eye positions, comparing the disconjugacy metric with a predetermined baseline to determine whether the disconjugacy metric is indicative of an impairment, and generating a report based on the disconjugacy metric.

The disclosure relates to systems, methods and programs for anatomically-constrained gaze estimation. More specifically, the disclosure is directed to systems, methods and programs for providing a point of reference (PoR) in a 3D field and/or 2D plane, based on 6 DOF head pose constrained by the eyeball center being fixed in a common 3D coordinate system.

Systems and methods for creating fully custom products from scratch without exclusive use of off-the-shelf or pre-specified components. A system for creating custom products includes a computer communicatively coupled with an image capture device and configured to construct an anatomic model of the user based on captured image data and/or measurement data. The computer provides a configurable product model and enables preview and automatic or user-guided customization of the product model. A display is communicatively coupled with the computer and displays the custom product model superimposed on the anatomic model or image data of the user. The computer is further configured to provide the customized product model to a manufacturer for manufacturing eyewear for the user in accordance with the customized product model.

Disclosed is a method for determining at least one geometrico-morphological parameter of a subject for determining a vision correction equipment, wherein the following steps are performed: a) determining the height of one of the eyes of the subject (P) relative to a reference horizontal surface; b) placing a visual target in front of the head (HP) of the subject (P) at a predetermined position, this predetermined position being determined taking into account the height of one of the eyes of the subject relative to the reference horizontal surface, determined in step a); c) while the subject gazes at the visual target placed at the predetermined position in step b), capturing an image of the head (HP) of the subject (P) with an image capture apparatus (50); and d) deducing from the image captured in step c) the at least one geometrico-morphological parameter.

Disclosed is a method wherein the following steps are performed: a) the subject is placed in a natural posture, in which at least one of the gaze directions of the subject points to a visual target, b) an image capture apparatus is placed between the head of the subject and the visual target, c) the relative posture of the image capture apparatus and head of the subject is adjusted in order for the pupil of the image capture apparatus to be positioned close to the gaze direction of at least one of the eyes of the subject, d) an image of the head of the subject is captured, and e) the at least one geometrico-morphological parameter is deduced from this image.

A system having a scope with a longitudinal length extending between a proximal end and a distal end includes a plurality of markers spaced along the longitudinal length. The system also includes a disassociation and positioning device that is configured to enhance unsedated transnasal endoscopic procedures by at least partially occluding the vision of a patient while enabling body cavity access, and optionally record and sense body functions such as temperature, heart rate and oxygenation of the blood stream. The system further includes a sensor integrated into the distraction device, wherein the sensor is configured to detect the markers on the longitudinal length of the scope.

A system and method for testing a subject for cognitive or oculomotor impairment includes presenting the subject with a display of an object, while presenting the display to the subject, and the subject's head moves horizontally or vertically within a predefined range of movement rates, measuring the subject's right eye positions and/or the subject's left eye positions. The system generates a metric by statistical analysis of the measurements of subject's right eye positions or the subject's left eye positions, and generates a report based on the metric. In some embodiments, the system is configured to train the subject to improve their performance, and thereby remediate or reduce cognitive and oculomotor impairment.

The invention concerns a method for measuring parameters necessary for producing corrective spectacles using an instrument (1) comprising the following steps: S1: positioning the wearer at a predefined distance from the frame (2) of the instrument (1), S2: placing a screen (5) of the instrument (1) opposite the wearer and displaying at least one image, S3: placing the frame of the corrective spectacles on the face of the wearer, S4: substituting the screen (5) with a one-way mirror (4) of the instrument, S5: taking the measurements.