Patent ID: 8708495
Filing Date: 2014-04-29
Classification: A61B,G02C

Abstract:
1. A quantitative diagnostic method used to correct a patient's vision degraded by Age Related Macular Degeneration (AMD), comprising, one eye at a time: (A) preparing, on a computer screen, a standard Amsler Grid (AG) having a plurality of horizontal lines, a plurality of vertical lines, and a plurality of intersection points; (B) highlighting the center point (CP) of the standard AG; (C) selecting one or more of the horizontal lines and one or more of the vertical lines, and one or more of the intersection points with the selected lines; (D) highlighting, one at a time, these selected lines, the selected intersection points, and the boundary points of the selected lines, and designating the intersection points as original (perfect AG) intersection points; (E) straightening the highlighted lines according to the patient's perception, using a computer input device, while the patient's gaze is fixed on the highlighted CP, while the patient views the highlighted intersection points, and while the patient uses the highlighted boundary points as peripheral cues, to form final intersection points; (F) computing discrete displacement vectors between all the original (perfect AG) and corresponding final intersection points; and (G) applying the displacement vectors to a device to correct the patient's vision.