发光二极管刺激器引起的图形视诱发电位的临床应用

Clinical application of LED pattern visual evoked po-tential.

应用ＭＫ１５发光二极管刺激器（ｌｉｇｈｔｅｍｉｔｔｉｎｇｄｉｏｄｅｓｔｉｍｕｌａｔｏｒ，ＬＥＤ）对６７例（１１４只眼）患者进行图形视诱发电位测定，其中视神经病变患者３８例（５９只眼），白内障患者２３例（４６只眼）。比较ＬＥＤ－ＰＶＥＰ和ＴＶ－ＰＶＥＰ的Ｐ＿（１００）的潜伏期和振幅，二者在统计学上差异无显著性（Ｐ＞０．０５）。结果提示，ＬＥＤ－ＰＶＥＰ可用于估价视神经病变患者和白内障患者的视功能及其预后。

Abstract The light emitting diode(LED) stimulator wasused to record PVEP from 59 eyes(38 patients) withoptic neuropathy and 46 eyes(23 patients) with cata-ract.The amplitude and the latency of P_(100) in LEDPVEP were comparable to those in TV PVEP withinsignificant differences(P>0.05),suggesting thatLED PVEP may be used in the evaluation of visualfunction and prognosis of patients with opticneuropathy or cataract.