Method for determining a person's visual faculties displays a random orientation of rotating broken ring test symbols growing in size and by stages on a screen by relying on preset pixel dimensions on the computer screen.

摘要

A screen display (1) has a broken ring (2) with a random orientation and an input element (3) that turns into the same position with the help of a screen arrow (4) as the broken ring. Orientation is confirmed with a button (5). During a test differently scaled broken rings are used one after the other in an incremental scaled sequence growing in size. The smallest ring still discernible indicates a person's power of vision.