视网膜中央静脉阻塞对侧眼视网膜电图的观察

本文对31例单眼视网膜中央静脉阻塞（centralretinalveinocclusion，CRVO）患者正常眼底的对侧眼进行了暗视ERGa、b波及OPs各子波峰时值、波幅和OP总合波幅的观察，结果表明，ERG的a、b波及OPs各子波峰时值均延迟，ERGb波波幅异常者占32％，其中b波超高者占29％，b波降低者占3％，OPs主要表现为O2波波幅的降低，异常率42％，异常率随着年龄的增大而增加。在OPs异常的患者中绝大多数存在着血液粘稠度的增高及血脂异常。提示O2波是观察视网膜血液循环障碍的敏感指标。全身因素可以同时影响双眼视网膜功能。

Electroretinographic finding of fellw eyes of patients with central retinal vein occlusion

Scotopic electroretinogram (ERG) and oscillatory potentials (OPs) of fellow eyes of 31 patients with unilateral central retinal vein occlusion were investi-gated. Results showed the peak times of the a, b waves and OPs of the fellow eyes were significantly longer than those of normal control group. Abnormalamplitude of b wave of 32% of the case group was observed (29% of the cases showed a large b wave and 3% of the cases showed a reduced b wave).The change of the OPs was mainly a reduced ampli-tude of O2 wave. The observed abnormal rate was 42%. It was also observed that most of the patients with abnormal OPs had increase of blood viscosity and lipemia. The results suggested that the O2 wave be a sensitive indication of retina1 circulatory dis-turbance. Systemic vascular abnormalities could inf-luence the affected and fellow eyes simultaneously.