The present invention provides a system and a method for measuring ocular motility of a patient. The system comprises a display unit capable of presenting at least one target; a blocking unit configured and operable to selectively block/unblock at least one target in a field of view of at least one eye of the patient; a camera unit comprising at least one imaging element configured and operable to generate at least two image data indicative of at least one eye condition; and a processing unit connected to the blocking unit, to the display unit and to the camera unit, the processing unit being configured for performing the following steps: (a) displaying at least one target, for at least one eye (b) receiving image data indicative of at least one eye's condition from the camera unit, (c) controlling the blocking unit to block/unblock at least one target in the field of view of at least one eye of the patient, (d) detecting a change in at least one eye's condition, (e) displacing the target for at least one eye; and repeating steps (a)-(e) until no change in the eye's condition is measured to thereby determine at least one ocular motility parameter.

A system for providing visual stimulation to a test subject having an amblyopic eye and a sound eye includes a screen and a controller. The screen configured to display image data, wherein each image data includes a first image data component viewable from a first angle and a second image data component viewable from a second angle, wherein the first image data component has an image quality that is higher than an image quality of the second image data component. The controller is configured to display the image data on the screen such that, when the test subject holds the screen, the first image data component is only viewable by the amblyopic eye of the test subject while the second image data component is only viewable by the sound eye of the test subject.

An attentiveness determination device includes an image processing unit, a pupil distance calculation unit, a heterophoria detection unit, and an attentiveness determination unit. The image processing unit outputs first reference coordinates, second reference coordinates, first pupil coordinates, and second pupil coordinates. The pupil distance calculation unit calculates at least one position component of the first pupil coordinates with respect to the first reference coordinates and at least one position component of the second pupil coordinates with respect to the second reference coordinates. The heterophoria detection unit outputs a heterophoria detection result indicating a state of a first eyeball and a second eyeball. The attentiveness determination unit determines attentiveness of a person according to the heterophoria detection result.

An automatic strabismus detection mechanism includes a housing and an eyepiece arranged on the housing. A lens mechanism located on a same axis as the eyepiece is arranged in the housing. The lens mechanism is provided with a rotating mechanism for adjusting an angle of refraction. The automatic strabismus detection mechanism includes technical effects of being composed of the lens mechanism and automatically controlled to generate 0 to 50 prism degrees; the volume is small and the weight is light, which is lighter than that of a triangular prism block made of ordinary glass; and the manufacturing cost is low, which is about one fifth of the price of a lens row. Therefore, with the automatic strabismus detection mechanism, a variety of equipment and instruments based on the principle of triangular prism spectroscopic detection or dispersion is greatly improved, and development of related instruments and equipment is facilitated.

A virtual reality display system including at least one optical alignment subsystem optically aligned with at least one eye of a subject and at least one virtual reality display device optically aligned with the at least one optical alignment subsystem for displaying to the subject at least one virtual reality object undergoing virtual motion, wherein the virtual motion of the at least one virtual reality object as viewable by the subject is operative for inducing and relaxing accommodation by the at least one eye of the subject.

A waveguide apparatus includes a planar waveguide and at least one optical diffraction element (DOE) that provides a plurality of optical paths between an exterior and interior of the planar waveguide. A phase profile of the DOE may combine a linear diffraction grating with a circular lens, to shape a wave front and produce beams with desired focus. Waveguide apparati may be assembled to create multiple focal planes. The DOE may have a low diffraction efficiency, and planar waveguides may be transparent when viewed normally, allowing passage of light from an ambient environment (e.g., real world) useful in AR systems. Light may be returned for temporally sequentially passes through the planar waveguide. The DOE(s) may be fixed or may have dynamically adjustable characteristics. An optical coupler system may couple images to the waveguide apparatus from a projector, for instance a biaxially scanning cantilevered optical fiber tip.

A waveguide apparatus includes a planar waveguide and at least one optical diffraction element (DOE) that provides a plurality of optical paths between an exterior and interior of the planar waveguide. A phase profile of the DOE may combine a linear diffraction grating with a circular lens, to shape a wave front and produce beams with desired focus. Waveguide apparati may be assembled to create multiple focal planes. The DOE may have a low diffraction efficiency, and planar waveguides may be transparent when viewed normally, allowing passage of light from an ambient environment (e.g., real world) useful in AR systems. Light may be returned for temporally sequentially passes through the planar waveguide. The DOE(s) may be fixed or may have dynamically adjustable characteristics. An optical coupler system may couple images to the waveguide apparatus from a projector, for instance a biaxially scanning cantilevered optical fiber tip.

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.

A method for detecting, diagnosing or screening for concussion in a subject includes a) tracking eye movement of at least one eye of the subject, b) analyzing eye movement of at least one eye of the subject, c) calculating a statistical test for eye movement of at least one eye of the subject as compared to a normal or mean eye movement, and d) detecting, diagnosing or screening for an impairment based on the calculated statistical test.