망막박리에 의한 망막전위도의 변화

Abstract

The preoperative ERG of 104 eyes with retinal detachment was analyzed and the following results were obtained. 1. The amplitude of ERG is subnormal or extinguished in the retinal detachment except a localized peripheral detachment. 2. The reduction in b-wave amplitude is not only dependent on the extent of detachment but also affected by the duration of detachment. 3. The success rate of reattachment is greater and the visual prognosis is better in those cases with higher preoperative b-wave amplitude. 4. Oscillatory potentials or c-wave indicates higher amplitude of ERG and the better prognosis of reattachment and visual restoration.