An automated flashblindness apparatus was constructed and is described. Various experiments designed to investigate the effect of flashblindness on foveal vision were conducted and are presented. These experiments included: correlation of flashblindness recovery data with fundus reflectometry data; the effect of preadaptation to high ambient light levels of flashblindness recovery time; foveal recovery time; foveal recovery time as a function of location and area of flash source image; intensity x time relationships; foveal dark adaptation; variability of interindividual flashblindness recovery times and the effect of flash source intensity and duration on recovery times, afterimage brightness and ratio of photopigment bleached.