[Differential light perception threshold of the visual field and ERG following operatively attached retinal detachment].

After surgical treatment of retinal detachment with a spontaneously pigmented demarcation line the visual fields of twelve patients were tested. The increment threshold of all positions (determined with the Octopus automatic perimeter system) was compared with the reduction in the scotopic and photopic ERG amplitudes (determinated with the CEMIDA system). This reduction in the ERG amplitudes was evaluated using the difference between the amplitude of the ERG waves of the eye with cured retinal detachment and of the healthy fellow eye. No great correlation between the two parameters was found, but it appeared that a reduced mean increment threshold correlated with a reduction in the a-wave amplitude.