视网膜震荡伤眼的多焦视网膜电图改变

目的 观察视网膜震荡伤眼的黄斑区视 网膜功能，评价多焦视网膜电图（mf-ERG）对视网膜震荡伤的诊断价值。 方法 采用德国Roland公司生产的RETI scan 3.15系统对31例单眼视网膜震荡伤患者的伤 眼（伤眼组）和对侧健眼（对侧健眼组）进行检测。记录61个部位反应，比较分析视网膜后 极部不同区域的N₁(第1个负波)、P₁波(第1个正波)平均反应振幅密度。 结果 伤眼组N₁波1～4环平均反应振幅密度、P₁波1～5环平均反应振幅密度明显低 于对侧健眼组。 结论 视网膜震荡伤眼病变区域N₁、P₁波平均反应 振幅密度下降；mf-ERG能对视网膜震荡伤患眼局部视功能进行定量定位测定。（中华眼底病杂志，2004，20：226-228）

The changes of multifocal electroretinography in commotio retinae

Objective To observe the changes of the multifocal electroretinograph (mf-ERG) in commotio retinae. Methods The affected eyes (traumatic group) and the fellow eyes (control group) of 31 patients with unilateral commotio retinae were examined by RETI scan 3.15 system. The responses of 61 retinal regions were recorded, and the average amplitude densities of the N 1 (the first negative) wave and P 1 (the first positive) wave in different regions of retinal were analyzed. Results The average amplitude densities of 1-4 rings in N 1 wave and 1-5 rings in P 1 wave were much lower in traumatic group than those in the control. Conclusions The average amplitude densities of N 1 wave and P 1 wave of mf-ERG in retinal affected regions decreases markedly in eyes with commotio retina; mf-ERG may provide the quantificational and orientational detection for the visual ability of the eyes with commotio retinae.