12 results about "Hyperacuity" patented technology

A virtual eye test can be conducted to evaluate visual acuity and perception in a virtual reality (VR) environment. The test can be conducted using an electronic device that includes a head-mounted display (HMD) and a camera. The electronic device can generate a VR user interface corresponding to photorealistic virtual environment and render the VR user interface on the HMD. The electronic device can simulate one or more real-world scenarios and while simulating the one or more real-world scenarios, in real time, track eye movements and responses from the wearer for testing visual acuity and perception of the wearer.

The application belongs to the technical field of vision care, and provides a kind of intelligent glasses, glasses box and vision training method, intelligent glasses include: frame mechanism;Lens mechanism, it includes left mirror unit, right mirror unit and pupil distance adjusting unit, left mirror unit, right mirror unit are connected with pupil distance adjusting unit to realize lens pupil distance adjusting function;Drive mechanism is connected with pupil distance adjusting unit to realize zoom vision training function.The intelligent glasses provided by the application is simple in appearance, light in quality, can replace daily ordinary corrective glasses for use, can improve the user's retinal imaging quality by adjusting the lens pupil distance, reduce the eye fatigue, at the same time, the lens can be driven to reciprocate to realize zoom vision training function, effectively exercise ciliary muscle, improve the accommodation ability and acuity of ciliary muscle, play the effect of preventing and treating myopia and amblyopia, the vibration is weak, avoid the phenomenon of dizziness and discomfort produced in the training process, improve the user experience and vision training effect of wearer.

The present invention is directed to methods for the use of 5'-adenosine diphosphate ribose (ADPR), and compositions thereof, for improving visual acuity, for example, in subjects having low / poor visual acuity resulting from an eye disease or condition.

A computer implemented method and corresponding computer program product and device determine an indication of a user's acuity level. The methods and devices facilitate performance of acuity tests in a decentralized manner while establishing a desired test accuracy irrespective of a particular type of device or display, to determine the indication in a reliable manner. A computer implemented method includes the steps of: performing an optical acuity test using a control unit in communication with a device display having a predefined resolution; and displaying the optical acuity test on the display. The displayed optical acuity test includes a graphical representation with a discontinuity and prompts the user to identify the discontinuity by providing a response. The control unit and display provide that the optical acuity test is adjusted by generating and displaying the discontinuity based on the response and based on anti-aliasing using one or more display pixels.

The present disclosure concerns a testing device (500) comprising: a light-field projector display (100) sequentially emitting a plurality of light fields (101); a spatial light modulator (SLM) (3) controllable to modulate the light fields (101); projection optics (4) configured to project the modulated light fields (101) and form at least a virtual image (40) in a projection image plane (400); and wherein the SLM image pattern (61) is configured to add at least one refractive correction to said at least one virtual image (40). A human interface device (HID) (503) is configured to let a user select at least one of the virtual images (40) for which the user perceives as having the best image subjective quality input the refractive correction corresponding to the selected at least one of the virtual images (40) in a data storage unit (509). The present disclosure further concerns a computer-readable medium configured to perform a method for to assess the vision acuity of a user by using the testing device.

A virtual eye test can be conducted to evaluate visual acuity in a dynamic virtual reality (VR) environment. The test uses an electronic device with a head-mounted display (HMD) and a camera. The device generates a VR user interface corresponding to a three-dimensional virtual environment and renders it on the HMD. A dynamic real-world visual experience is simulated in the VR interface. The device tracks eye movements and response times to visual stimuli presented in this dynamic experience, using the camera. Depth perception, motion detection, and spatial awareness are evaluated based on these measurements, providing a comprehensive assessment of dynamic visual acuity.

A display apparatus includes: a display; a user interface; a memory storing a contrast sensitivity test image and a contour sensitivity test image for measuring a visual acuity level of a user; and at least one processor configured to: through the user interface, receive a user input for identifying visual acuity information of the user, in a state in which the contrast sensitivity test image and the contour sensitivity test image are displayed on the display, based on the information stored in the memory, identify a plurality of sample images having different image qualities and corresponding to a plurality of image types based on the identified visual acuity information, in a state in which the visual acuity information of the user is identified based on the user input, identify image quality information corresponding to each of the plurality of image types.

A head-mounted display device (HMDD) operable to provide extended-reality (XR) services is provided. The HMDD includes a display, adjustable lenses that include an active medium proximate the display, a memory, and a processor device coupled to the memory. The processor device is operable to determine a visual acuity metric associated with a user and, based on the visual acuity metric associated with the user, adjust an optical characteristic of the adjustable lenses, such as refractive index, lens curvature, and / or the like. In some examples, the adjustable lenses are electro-optical lenses comprising an active liquid crystal medium that is operable to adjust an optical characteristic associated therewith in response to applied electrical stimuli. In some examples, the adjustable lenses are opto-mechanical lenses comprising an active fluid medium within a flexible membrane that is operable to adjust an optical characteristic associated therewith in response to applied mechanical stimuli.

A wearable device is disclosed. The wearable device receives an input for changing a distance between a user and a virtual window. While receiving the input, based on changing the distance between the user and the virtual window from a first distance, the wearable device identifies that a size of the at least one content included in the virtual window at a second distance of the virtual window from the user, which is changed from the first distance, corresponds to visual acuity information of the user from the gaze of the user, and based on identifying the second distance of the virtual window based on the visual acuity information, ceases changing the distance between the user and the virtual window according to the input being received.

The invention relates to the technical field of amblyopia treatment, and discloses an amblyopia training device which comprises a support unit, a virtual reality unit, a filter unit, an audio stimulation unit, a transcranial stimulation unit and a control unit. The bracket unit comprises a top side part, a rear side part and a lug part; the virtual reality unit comprises display glasses; the filter lens unit comprises a lens bracket, a first filter lens and a second filter lens; the audio stimulation unit comprises two loudspeakers; the transcranial stimulation unit is connected to the rear side part; the control unit is electrically connected with the display glasses, the loudspeaker and the transcranial stimulation unit; according to the amblyopia device provided by the invention, the display glasses, the loudspeaker, the first filter, the second filter and the transcranial stimulation unit are arranged to stimulate the user in various ways, so that the effect of activating the visual center of the user to improve the visual acuity of an amblyopia person in an interactive and additive manner is achieved.

A method for determining acuity-of-vision characteristics of a test person with a astigmatic visual defect, including: providing visual defect data for the test person, wherein the visual defect data includes a cylinder axis or axial position of a required optical cylinder correction; selecting a preferential direction such that this preferential direction either corresponds to the cylinder axis which is assigned to the optical cylinder correction, is rotated by 90° to this cylinder axis, or is derived from wavefront data using a point spread function; applying an optical power in the selected preferential direction; displaying an adapted visual sign, which has a directional feature, wherein the adapted visual sign is displayed aligned such that its directional feature is parallel to the preferential direction; and determining acuity-of-vision characteristics of the test person for the selected preferential direction, taking into account a dimension of the directional feature and the applied optical power.