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目的 :对RP患者进行F ERG、P VEP和EOG三项联合检查 ,以分析病程和作为术后疗效跟踪的客观对照指标。方法 :采用常规无创伤视觉电生理描记术 ,测定暗视F ERG、P VEP和EOG。结果 :受检的 6 6名RP患者 132只眼中 ,E ERG为“熄灭型”的为 6 3 .6 %,能记录到a 波的仅占 1.5 %,c 波为 3.0 %,能记录到b 波与负后电位的分别为 30 .3 %和 34.1%。完全记录不到P VEP的占 35 .1%,刺激中央 6°视野能记录到低幅P10 0 波的有 49.1%,而刺激周边视野则只有 17.5 %能记录到P VEP ,且波形多为异常的“W”波。绝大部分RP患者的EOG曲线平坦 ,光峰与暗谷均消失 ,Arden比和G比值均明显下降 ,说明明、暗适应机能已经显著受损。
OBJECTIVE: To conduct a combined examination of F ERG, P VEP and EOG in patients with RP to analyze the course of disease and serve as an objective control index for the follow-up of postoperative efficacy. Methods: Conventional noninvasive visual electrophysiography was used to measure F ERG, P VEP and EOG. Results: In 132 eyes of 66 RP patients, the E ERG was “extinguished” at 63.6%, which recorded only 1.5% of a wave and 3.0% of c wave, and b Wave and negative potential were 30.3% and 34.1% respectively. PVI was less than 35.1% of the total records, and 49.1% of the P10 0 waves were stimulated at the central 6 ° field of view while only 17.5% of the peripheral fields were stimulated to record P VEP and the waveforms were mostly abnormal The “W” wave. The EOG curve of most RP patients is flat, the light peaks and dark valleys disappear, and the Arden ratio and G ratio are significantly decreased, indicating that the light and dark adaptation function has been significantly impaired.