A chart display device for a visual acuity test includes a chart display optical unit that emits a chart image generated by a chart display optical system to a front, and is rotatably coupled to a frame of the chart display device via a rotation shaft; a position indicator light source that indicates the height of an eye to be examined and emits a position identification light; a position detection sensor that detects the position identification light emitted from the position indicator light source, and thus detects the height of the eye to be examined; and a rotation driving unit that rotates the chart display optical unit around the rotation shaft, and thereby tilts an emission direction of the chart image so that the chart image emitted from the chart display optical unit is emitted in the direction of the eye to be examined.

A system and method for conducting automated vision tests and associated training using artificial intelligence processing on an extended reality (XR) platform includes: an extended reality headset display device configured to be worn by a user and operated by the user without direct medical professional assistance; a computing device communicatively coupled to the extended reality headset display device; and a vision testing and training module configured to execute on the computing device, the vision testing module when executed: displays at least one test data set comprising a plurality of vision tests to a user; detects a plurality of user responses to the tests; records the plurality of user responses; processes the plurality of user responses; and stores the plurality of user responses to compare with a plurality of other recorded user data to determine standards based on user qualifications.

A system for the remote management of head mounted vision assist devices used by patients, is provided. The system includes head mounted vision assist devices located at various patient locations, at least one computing device used by a clinician supervising the usage of the vision assist devices by the patients, and a server communicatively coupled with each of the vision assist devices and the computing device used by the clinician. The server executes stored instructions to enable the clinician to remotely monitor the results of one or more diagnostic tests conducted by a patient at predefined time intervals and monitor a display of a head mounted vision assist device being used by the patient by mirroring the patient's display on the clinician's computing device. The server executes stored instructions that also enable the clinician to diagnose the patient based on at least one of the test results and the mirrored display and provide one or more of: prescription and therapy to treat the patient based on the diagnosis.

Methods, apparatus, and systems for performing an ophthalmic diagnostic test are disclosed. In one aspect, a head-wearable device for administering an ophthalmic test to a subject can comprise a head-wearable frame for mounting the device onto the subject's head, and a light seal configured for coupling to the frame so as to isolate at least one eye of the subject from ambient light when the device is worn by the subject.

A measuring method for measuring sensitivity of eye around certain line of sight includes: showing image of predetermined pattern on a display screen showing in front of eyeball of subject by display device secured to head; showing fixation target focused on by subject, on display screen to make line of sight of subject; showing change region where predetermined pattern image is changed, at anisotropic area around intersection point or fixation target in screen is separated from intersection point and fixation target, intersection point wherein subject certain line of sight focuses on fixation target, crosses display screen; showing change region where predetermined image pattern is changed on display screen, wherein change region manner is continuously or intermittently brought close to or away from intersection point or fixation target in display screen; and determining range wherein subject senses change region by bringing it close or away from intersection point or fixation target.

Systems and methods for diagnosing a user's vision condition by combining results of one or more vision tests taken by the user via a head-mounted vision device (HMVD) are provided. A user is provided with a first vision test and a second vision test via the HMVD and takes each test a predefined number of times and in a predefined order. Results are obtained from each test taken by the user, combined to obtain a combined test result for the user, and then used to diagnose the user's vision condition.

Systems and methods for assessing the visual acuity of a person using a consumer computing device are described. In this approach, the user is assisted by a helper (examiner). The method involves providing instructions, offering voice assistance, displaying optotypes for the user to identify, presenting an interface for the examiner to select the number of incorrect optotypes, determining acuity score(s), and presenting an interface comprising of the score(s) and their interpretation(s). The present invention improves upon current market solutions: it functions without network access (useful in infrastructure-limited regions), provides voice assistance in multiple languages, ensures precise optotypes by using a custom database of consumer computing device screen sizes, provides automatic calibration to a wide range of devices, and offers a selection of optotypes not found in other apps, such as those for non-literate and non-English speaking test-takers. Thus, this invention allows for the identification visual impairments at their early onset.

A handheld ophthalmic device configured to perform various optical diagnostic tests to determine the health of a subject's eye. The handheld ophthalmic device is configured to be attached to a smartphone, a cell phone or an electronic tablet. The smartphone, a cell phone or an electronic tablet can be used to view images obtained by the handheld ophthalmic device and to transmit data and images obtained by the handheld ophthalmic device to an ophthalmologist located remotely.

Provided are apparatuses, a non-transitory computer-readable medium or media, and methods for supporting reading of a fundus image of a subject. In certain aspects, disclosed a method including the steps of: extracting a first feature information from a first fundus image of the subject based on a machine learning model; generating a second fundus image having a second feature information by mapping an adversarial factor to the first fundus image so that the first feature information is changed; and displaying the first fundus image having the first feature information and the second fundus image having the second feature information on a display device.

A method for evaluating the visual acuity of a person using a mobile device having at least a front camera and a screen, the method including a user positioning step during which the user of a mobile device positions himself in front of a mirror at a predefined distance d/2, a mobile device positioning step during which the mobile device is positioned with the front camera of the mobile device facing the mirror, a distance measuring step during which a distance d between the front camera of the mobile device and a virtual image of the mobile device in the mirror is measured, a displaying step during which the screen of the mobile device displays optotypes, and an evaluation step during which the visual acuity of the user is evaluated.