眼外伤性视神经挫伤视觉诱发电位的分析
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[摘要] 目的 探讨视觉诱发电位(visual evoked potential,VEP)在眼外伤性视神经挫伤中的诊治应用价值。方法 对80例(80眼)外伤性视神经挫伤患者进行VEP测定,并与自身健侧眼进行对照。结果 80例(80眼)VEP检测正常16眼(20.0%),异常64眼(80.0%)(χ2=3.95,P<0.05);VEP异常表现为:VEP波形完全消失10只眼,单纯P100波幅降低40只,P100潜伏期延长30只眼;轻度眼受伤波幅、潜伏期与重度眼受伤比较有显著性差异(t=3.614,t=3.518,P均<0.05);两组伤后检查时间与P100潜伏时间和波幅的改变均无相关性((r=0.039和r=0.015,P均>0.05)。结论 VEP检查能准确客观地反映出伤眼的视功能,是临床诊断治疗的重要依据。
[关键词] 眼外伤;视觉诱发电位;外伤性;视神经病变
[中图分类号] R799.1;R770.43 [文献标识码] A [文章编号] 1673-9701(2010)06-32-02
Visual Evoked Potential of Optic Nerve Contusion Following Ocular Trauma
YE Xiuqun
Department of Ophthalmology,Huizhou Central Hospital,Huizhou 516001,China
[Abstract] Objective To explore the diagnosis and treatment value of the visual evoked potential(VEP)for caused by ocular trauma. Methods The optic nerve contusion following ocular trauma was determined in 80 patients(80 eyes,as observation group)and was compared with the VEP of the contralateral healthy eyes(80 eyes as control group). Results The VEP determination showed that 16 eyes(20.0%)were normal in 80 patients(80 eyes)and 64 eyes(80 ......
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