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目的应用检测图形翻转视觉诱发电位(P-VEP)的方法,探讨上睑下垂患者可能出现的视功能异常。方法应用罗兰视觉电生理仪检测24例单眼先天性上睑中重度下垂患者的图形P-VEP,记录患眼和健眼的P100波的潜伏期和振幅。结果患眼较健眼P100潜伏期明显延长,振幅明显降低,差异均有统计学意义(均P<0.05)。其中患眼P100波振幅低于健眼10%以上的有13例(54.17%)。结论中重度单眼先天性上睑下垂患者患眼的视觉功能差于健眼。
Objective To detect the visual evoked potentials (P-VEPs) in patients with ptosis by detecting the pattern. Methods The Roland visual electrophysiometer was used to detect the pattern P-VEP in 24 patients with monocular eyelid moderate-severe ptosis. The latency and amplitude of P100 wave were recorded. Results Compared with healthy eyes, the latency of P100 was significantly prolonged and the amplitude was significantly decreased (all P <0.05). Among them, 13 cases (54.17%) had eyes with P100 wave amplitude less than 10% of healthy eyes. Conclusion The visual function of patients with moderate to severe congenital blepharoptosis is worse than that of healthy eyes.