A dark adapted perimetry method includes the steps of at least partially photobleaching an eye, selectively illuminating a plurality of stimulus target light sources at a predetermined luminance, and recording a response data including triggering an input device in response to the selective illumination. The plurality of stimulus target light sources define a stimulus target array positioned within a concave array guide. Each stimulus target light source is illuminated by a respective LED complex light source.

A dark adapted perimetry method includes the steps of at least partially photobleaching an eye, selectively illuminating a plurality of stimulus target light sources at a predetermined luminance, and recording a response data including triggering an input device in response to the selective illumination. The plurality of stimulus target light sources define a stimulus target array positioned within a concave array guide. Each stimulus target light source is illuminated by a respective LED complex light source.

The invention relates to a method for obtaining a visual field map of an observer, particularly a perimetry method, wherein a plurality of test locations in front of the observer is provided, at each test location of a subset of said plurality a respective perceived sensitivity threshold is measured, wherein at least one light signal is provided at the respective test location, and wherein it is monitored whether said observer observes said at least one light signal, and wherein for each test location a respective estimate of the perceived sensitivity threshold is derived from the previously measured perceived sensitivity thresholds of said subset, and wherein said light signal is provided at a light intensity value derived from the estimate of the perceived sensitivity threshold of said respective test location.

The invention relates to a method for obtaining a visual field map of an observer, particularly a perimetry method, wherein a plurality of test locations in front of the observer is provided, at each test location of a subset of said plurality a respective perceived sensitivity threshold is measured, wherein at least one light signal is provided at the respective test location, and wherein it is monitored whether said observer observes said at least one light signal, and wherein for each test location a respective estimate of the perceived sensitivity threshold is derived from the previously measured perceived sensitivity thresholds of said subset, and wherein said light signal is provided at a light intensity value derived from the estimate of the perceived sensitivity threshold of said respective test location.

An automated method for testing peripheral and expanded visual fields on limited field of view head-mounted device. The method has a fixation point that is placed in multiple locations of the field of view to test stimuli points that would be outside of the field of view of a head-mounted device if the fixation point were in the center. Stimuli points are grouped together and are associated with fixation points. Each stimulus appears individually on an opposite side of the fixation point in the field of view. The stimuli points may be static or dynamic. The method is applied as visual field diagnostic tool for Ptosis disorder, Esterman test, or any expanded peripheral Visual Field test.

An automated method for testing peripheral and expanded visual fields on limited field of view head-mounted device. The method has a fixation point that is placed in multiple locations of the field of view to test stimuli points that would be outside of the field of view of a head-mounted device if the fixation point were in the center. Stimuli points are grouped together and are associated with fixation points. Each stimulus appears individually on an opposite side of the fixation point in the field of view. The stimuli points may be static or dynamic. The method is applied as visual field diagnostic tool for Ptosis disorder, Esterman test, or any expanded peripheral Visual Field test.

In some embodiments, initial feedback indicating threshold characteristics (under which a user sees initial stimuli presented on a user interface) may be provided to a prediction model, and a set of predicted characteristics (for a set of locations of the user interface) and a set of confidence scores associated with the set of locations may be obtained via the prediction model. Based on the set of confidence scores, one or more locations may be selected to be tested during a visual test presentation. As an example, the locations may be selected over one or more other locations of the set of locations based on the set of confidence scores. Based on predicted characteristics associated with the selected locations, stimuli may be presented at the selected locations during the visual test presentation. Visual defect information for the user may be generated based on feedback from the visual test presentation.

In some embodiments, initial feedback indicating threshold characteristics (under which a user sees initial stimuli presented on a user interface) may be provided to a prediction model, and a set of predicted characteristics (for a set of locations of the user interface) and a set of confidence scores associated with the set of locations may be obtained via the prediction model. Based on the set of confidence scores, one or more locations may be selected to be tested during a visual test presentation. As an example, the locations may be selected over one or more other locations of the set of locations based on the set of confidence scores. Based on predicted characteristics associated with the selected locations, stimuli may be presented at the selected locations during the visual test presentation. Visual defect information for the user may be generated based on feedback from the visual test presentation.

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.