ELECTRORETINOGRAM FLICKER PHOTOMETRY AND ITS APPLICATIONS

The electroretinogram (ERG) has been a traditional tool for the measur ement and the analysis of spectral sensitivity. With the appropriate c hoices of stimulus and measurement conditions, the ERG permits a nonin vasive examination of photopigment complement and provides the means f or studying the combination of spectral signals at various locations t hroughout the retina. There are a number of practical problems associa ted with making spectral measurements with the ERG. One approach to mi nimizing these problems is to exploit the advantages of a flicker-phot ometric procedure. We summarize a method used to conduct ERG flicker p hotometry and illustrate a range of problems to which this technique c an be successfully applied. (C) 1996 Optical Society of America