Patent ID: 9560960
Date: 2017-02-07
CPC Classifications: A61B

Claim:
1. A method for detecting and measuring vision defects comprising: a. arranging four stimuli into two fusible rivalrous image pairs where the two stimuli in each of said two fusible rivalrous image pairs are aligned horizontally and where said two fusible rivalrous image pairs vertically forming a top rivalrous pair and a bottom rivalrous pair that appear as a single top image and a single bottom image when fused by a subject, b. creating reciprocal brightness of said two fusible rivalrous pairs where each of said two fusible rivalrous pair has a bright and a dim image, where the left image of said top rivalrous pair is equally bright as the right image of said bottom rivalrous pair and the right image of said top rivalrous pair is equally bright as the left image of said bottom rivalrous pair, c. presenting one member of each of said two fusible rivalrous image pairs to the right eye and the opposite member of said two fusible rivalrous image pairs to the left eye, and d. varying the brightness of a least one image in said two fusible rivalrous image pairs to achieve the equality endpoint the point when said single top image appears equal to said single bottom image.