准分子激光角膜切削术后视觉诱发电位的改变  

The changes of P-VEP in patients before and after photorefractive keratectomy(PRK).

作　　者：郭建立[1] 曲瑞广[1] 余珊容[1] 李素毅[1] 贾志军[1] 

机构地区：[1]南阳市第一人民医院眼科

出　　处：《眼外伤职业眼病杂志》2002年第3期262-263,共2页Journal of Injuries and Occupational Diseases of the Eye with Ophthalmic Surgeries

摘　　要：目的　探讨准分子激光光学屈光性角膜切削术 (PRK)手术过程中 ,激光发射时的冲击力等对视网膜及视神经的影响。方法　随机抽取在我院行PRK手术者 3 8人 ,76眼 ,术前 3天内及术后第 3天行P VEP检查 ,对比两者P10 0 的波幅及潜伏时的变化。结果　手术后P10 0 的波幅较前明显提高 (P <0 .0 1) ,而潜伏时无差异 (P >0 .1)。结论　从P VEP的角度看 ,PRK对视网膜及视神经无任何损害。Objective To study the effects of photorefractive keratectomy(PRK) procedure on retina and optic nerve.Methods 38 patients (76 eyes) were randomly selected from our hospital,which had undergone PRK.The P VEP was recorded before and after PRK.The changes of preoperation and postoperation were compared in amplitude of P 100 and prolongation of latency. Results The operative ampitude of P 100 was improved greatly ( P <0.01),but prolongation of latency hadn′t significant differnces ( P >0.1).Conclusion In the case of P VEP,PRK has no injuries on retina and optic nerve.

关 键 词：准分子激光角膜切削术 视觉诱发电位 视网膜 视神经 近视 

分 类 号：R779.63[医药卫生—眼科]