APPARATUS AND METHOD FOR MEASURING DYMAMIC VISUAL ACUITY AND VISUAL CONTRAST

摘要

A method of operating a data processing apparatus for testing visual acuity and/or visual contrast, the method comprising displaying symbols on a display device, the symbols displayed having luminance, colour and contrast, varying the luminance, colour and/or contrast or any one or combination of luminance, colour and/or contrast of the symbols displayed on the display device; and varying the time period for displaying the symbols.