Patent ID: 8132910
Filing Date: 2012-03-13
Classification: A61B,A61H

Abstract:
1. A method for testing or training the contrast sensitivity of a subject, the method comprising: (a) providing a display device viewable to the subject; (b) providing an input device accessible to the subject; (c) displaying, on the display device, a plurality of circular contrast zones, each of the plurality of circular contrast zones having a Michelson contrast value, one of the plurality of circular contrast zones having a higher Michelson contrast value than the other circular contrast zones of the plurality of circular contrast zones; (d) receiving, at the input device, an input from the subject, the input being in response to displaying the plurality of circular contrast zones, the input designating which of the plurality of circular contrast zones the subject perceives to have the highest contrast of the plurality of circular contrast zones; and (e) determining whether the input correctly identified the circular contrast zone having the higher Michelson contrast value than the other circular contrast zones of the plurality of circular contrast zones.