# US 10,945,599 B1 · System and method for vision testing and/or training

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- Number: US 10,945,599 B1
- Document ID: US10945599B1
- Status: Granted
- Kind: B1
- Application number: 16/940,260
- Filed: 2020-07-27
- Granted: 2021-03-16
- Earliest claimed: 2017-06-28
- Assignees: Bertec Corporation
- Applicants: Bertec Corporation
- Inventors: Necip Berme; Cameron Scott Hobson; Charles Shearer
- Web page: https://patentgrep.com/patent/US10945599B1

## CPC

- A61B 3/113: for determining or recording eye movement
- A61B 3/0025: {characterised by electronic signal processing, e.g. eye models}
- A61B 5/1036: {Measuring load distribution, e.g. podologic studies}
- A61B 5/1117: {Fall detection}
- A61B 5/162: {Testing reaction times}
- A61B 5/163: {by tracking eye movement, gaze, or pupil change}
- A61B 5/4023: {Evaluating sense of balance}
- A61B 5/6803: {Head-worn items, e.g. helmets, masks, headphones or goggles}
- A61H 5/00: Exercisers for the eyes
- G02B 27/0093: {with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking}
- A61H 2201/1604: Head
- A61H 2201/5046: Touch screens
- A61H 2201/5048: Audio interfaces, e.g. voice or music controlled
- A61H 2201/5084: Acceleration sensors
- A61H 2205/024: Eyes
- G02C 11/10: {Electronic devices other than hearing aids}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00)

## Abstract

A system for vision testing and/or training of a user is disclosed herein. In one embodiment, the system includes an eye movement tracking device, a visual display device having an output screen, and a data processing device operatively coupled to the eye movement tracking device and the visual display device. The data processing device being programmed to generate and display the at least one visual object on the output screen of the visual display device; displace the at least one visual object across the output screen of the visual display device; and determine, based upon the signal received from the eye movement tracking device, whether the user is able to accurately track the at least one visual object as the at least one visual object is displaced across the output screen of the visual display device.

## Claims

### Claim 1

A system for testing and/or training the vision and balance of a user, said system comprising:
a force or balance measurement assembly configured to receive a subject, the force or balance measurement assembly including:
a surface for receiving at least one portion of a body of a subject,
at least one measurement device, the at least one measurement device configured to sense one or more measured quantities and output one or more signals that are generated based upon the subject's contact with the surface;
a visual display device having an output screen, the visual display device configured to display at least one visual object on the output screen so that the at least one visual object is visible to the user so that the user is able to follow the at least one visual object on the output screen; and
at least one data processing device, the at least one data processing device operatively coupled to the at least one measurement device of the force or balance measurement assembly and the visual display device, the at least one data processing device comprising non-transitory computer readable media, the at least one data processing device configured to receive the one or more signals that are generated based upon the subject's contact with the surface of the force or balance measurement assembly and to compute a plurality of numerical values using the one or more signals, the at least one data processing device being configured to control a movement parameter of the at least one visual object on the output screen of the visual display device by using a first one of the plurality of numerical values, and the at least one data processing device being further configured to assess the probability that the user will fall based upon a combination of the first one of the plurality of numerical values and a second one of the plurality of numerical values;
wherein the first one of the plurality of numerical values computed using the one or more signals comprise x and/or y coordinates specifying the center of pressure of a force vector applied by the user on the force or balance measurement assembly; and
wherein the movement parameter of the at least one visual object on the output screen of the visual display device is controlled by a fore/aft displacement of the center of pressure of the user on the force or balance measurement assembly.

### Claim 2 (depends on 1)

The system according to claim 1, wherein the movement parameter of the at least one visual object on the output screen of the visual display device comprises a speed or acceleration of the at least one visual object in an interactive game, a virtual reality scenario, and/or an immersive graphic environment.

### Claim 3 (depends on 1)

The system according to claim 1, wherein the movement parameter of the at least one visual object on the output screen of the visual display device comprises a displacement of the at least one visual object in an interactive game, a virtual reality scenario, and/or an immersive graphic environment.

### Claim 4 (depends on 1)

The system according to claim 1, wherein the second one of the plurality of numerical values computed using the one or more signals comprise a shear force applied by the user on the force or balance measurement assembly, and wherein the at least one data processing device is configured to assess the probability that the user will fall based upon a combination of the center of pressure of the user and the shear force applied by the user on the force or balance measurement assembly.

### Claim 5 (depends on 1)

The system according to claim 1, wherein a turning direction of the at least one visual object on the output screen of the visual display device to the right or left is controlled by a lateral displacement of the center of pressure of the user on the force or balance measurement assembly.