Apparatus and method for testing visual acuity and fixation control

摘要

A method and apparatus for conducting a visual acuity test are provided. The method includes displaying a visual acuity test on a display device ( 20 ) that is initiated by a controller ( 16 ) such as a handheld keypad controller ( 16 ), which is operatively associated with the computer-processing unit ( 12 ). The patient's eye is fixated using an eye fixation assessment on a display device during portions of the visual acuity test and is initiated by a controller such as a foot pedal controller ( 14 ), which is operatively associated with the CPU. Contrast sensitivity can also be evaluated on the display device by selectively altering the contrast of an image and background on the display device ( 20 ).