Patent ID: 8585202
Filing Date: 2013-11-19
Classification: A61B,A61H

Abstract:
1. A method for testing or training the contrast sensitivity of a subject, the method comprising: providing a display device viewable by the subject; providing an input device accessible to the subject capable of receiving, at a given time, at least one of any of a plurality of spatially defined inputs; displaying, on the display device, a plurality of circular contrast zones beginning at a first time, each of the plurality of circular contrast zones having the same total pigmentation, the plurality of circular contrast zones spatially arranged in correspondence with the plurality of spatially defined inputs capable of being received by the input device, and one of the plurality of circular zones having a higher contrast value than the other contrast zones, the one of the plurality of contrast zones having a higher contrast having a non-zero contrast value and the other circular contrast zones having a zero contrast value; receiving, at a second time an input from the subject at the input device, the input selecting one of the plurality of circular contrast zones; determining whether the circular contrast zone selected by the received input corresponds to the contrast zone having a higher contrast than the other contrast zones; and storing the determination as to whether the received spatially defined input corresponds to the contrast zone having a different contrast than the other contrast zones.