US 12,343,080 B2
Vision testing system and method
Kexing Liu, Nepean (CA); and Anirbaan Mukherjee, Behala (IN)
Filed by OcuXcel Corporation, Nepean (CA)
Filed on Dec. 15, 2021, as Appl. No. 17/551,918.
Claims priority of provisional application 63/127,058, filed on Dec. 17, 2020.
Prior Publication US 2022/0192482 A1, Jun. 23, 2022
Int. Cl. A61B 3/024 (2006.01); A61B 3/00 (2006.01); A61B 3/032 (2006.01)
CPC A61B 3/024 (2013.01) [A61B 3/0033 (2013.01); A61B 3/0041 (2013.01); A61B 3/032 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for vision testing comprising:
displaying, on an electronic display device, a testing image comprising a static visual grid, at least one visual reference point, and a dynamic background;
positioning a person at a working distance from the electronic display device;
dynamically changing the dynamic background cyclically and concentrically with the visual grid to change at least one of the background color, brightness, shade, and texture at a frequency sufficient to interrupt at least one of the Troxler effect and the filling-in effect; and
receiving input for recording location of any perceived visual aberration relative to the visual grid.