BINOCULAR VISION ASSESSMENT AND/OR THERAPY

• US 20100283969A1
• Filed: 04/30/2010
• Published: 11/11/2010
• Est. Priority Date: 10/23/2007
• Status: Active Grant

• Current Assignee: McGill University
• Original Assignee: McGill University
• Inventors: Blum, Jeff, Hess, Robert F., To, Thang Long, Thompson, Benjamin Simon, Cooperstock, Jeremy
• Granted Patent: US 8,066,372 B2
• Time in Patent Office: Days
• US Class Current: 351/201
• CPC Class Codes: A61B 3/022 for testing contrast sensitivity
• CPC Class Codes: A61B 3/032 Devices for presenting test symbols or characters, e.g. test chart projectors A61B3/036 takes precedence
• CPC Class Codes: A61B 3/08 for testing binocular or stereoscopic vision, e.g. strabismus
• CPC Class Codes: A61H 5/005 Exercisers for training the stereoscopic view

Abstract

This invention is a game platform for the assessment and/or treatment of disorders of binocular vision, such as amblyopia. The game content is devised to maximize the possible therapeutic effects by leveraging advanced research in opthalmology, as well as advanced display technology to render images independently to each eye. In particular, the game content engages both eyes at different levels of difficulty, forcing an amblyopic eye to work harder to regain its performance in the visual system. The invention herein described provides a mobile device, capable of interaction with an eye care specialist, for the assessment/treatment of binocular vision using innovative mechanisms for ensuring proper use thereof.

Claims

1. A binocular vision assessment and/or therapy apparatus comprising:

a source of left eye image and right eye image pairs adapted to be viewed dichoptically and perceived with binocular vision, said pairs having a variable difference between said left eye image and said right eye image;

a dichoptic display system presenting a selected one of said images pairs as a right eye image to a patient'"'"'s right eye and a left eye image to a patient'"'"'s left eye; and

a proper use detector having a camera for imaging a patient using said dichoptic display system and an image analyzer for determining proper use of said display system by the patient.

2. The apparatus as claimed in claim 1, wherein the dichoptic display comprises a lenticular screen, and said analyzer determines proper position of the patient with respect to the screen.

3. The apparatus as claimed in claim 1, wherein the dichoptic display comprises stereoscopic vision glasses to be worn by the patient, and said analyzer determines if the patient is wearing said glasses.

4. The apparatus as claimed in claim 1, wherein said camera is mounted to be solid with a screen of said display system.

5. The apparatus as claimed in claim 4, wherein said apparatus comprises a handheld computing device, said camera is located on a housing of said display to image in a front-facing direction of said display, further comprising a optical device for imaging said patient looking as said display using said camera.

6. A binocular vision assessment and/or therapy apparatus comprising:

a handheld computing device having game software defining a task to be performed by a patient by interaction with the device, the software including a source of left eye image and right eye image pairs adapted to be viewed dichoptically and perceived with binocular vision, said pairs having a variable difference between said left eye image and said right eye image; and

said computing device being adapted to present a selected one of said images pairs as a right eye image to a patient'"'"'s right eye and a left eye image to a patient'"'"'s left eye, wherein said software records patient task performance and synchronizes task performance data collected over time with a data network for access by a health care professional.

7. The apparatus as claimed in claim 6, wherein computing device has a stereoscopic lenticular screen overlay for stereoscopic viewing without stereoscopic glasses.

8. The apparatus as claimed in claim 6, wherein said computing device adjusts said images as function of patient task performance.

9. The apparatus as claimed in claim 6, wherein said game software provides full contrast game objects to one eye and at least some reduced contrast game objects to another eye.

10. The apparatus as claimed in claim 6, wherein said game software provides a task comprises elementary level separation of visual information requiring low level cortical integration.

11. The apparatus as claimed in claim 9, wherein said game software provides a Tetris-style game.

12. A binocular vision assessment and/or therapy apparatus comprising:

a handheld computing device having a stereoscopic lenticular screen overlay for stereoscopic viewing without stereoscopic glasses and game software defining a task to be performed by a patient by interaction with the device, the software including a source of left eye image and right eye image pairs adapted to be viewed dichoptically and perceived with binocular vision, said pairs having a variable difference between said left eye image and said right eye image; and

said computing device being adapted to present a selected one of said images pairs as a right eye image to a patient'"'"'s right eye and a left eye image to a patient'"'"'s left eye.

13. The apparatus as claimed in claim 12, wherein said computing device adjusts said images as function of patient task performance.

14. The apparatus as claimed in claim 12, wherein said game software provides full contrast game objects to one eye and at least some reduced contrast game objects to another eye.

15. The apparatus as claimed in claim 12, wherein said game software provides a task comprises elementary level separation of visual information requiring low level cortical integration.

16. The apparatus as claimed in claim 15, wherein said game software provides a Tetris-style game.