Standardization of the Bausch & Lomb Autoplot tangent screen

A method is described of modifying the Bausch & Lomb Autoplot to obtain background and test target luminances of 10.02 cd/m2 and 32.8 cd/m2, respectively. Together with the use of a 2-mm target, these test conditions closely correspond to those of the Goldmann perimeter. These conditions can be maintained to provide more standardized perimetry than is currently available with the Autoplot.