| Analysis of amplitude and latency of pattern-visual evoked potential (P-VEP) of the monocular amblyopia children with fundamental mending. Xing Yong-xing, Zhanglin. Department of Ophthalmology, The First school of Clinical Medicine, Xi’an Jiao Tong University, Xi’an 710061
Objective To observe the differences of amplitude and latency of P-VEP between amblyopic eyes and predominant eyes. Method Analyze P-VEP of 39 cases of monocular amblyopia children with fundamental mending. Results Compared the P-VEP of amblyopic and predominant group, there is statistically significant difference. The monocular amblyopia group was observed decrease in amplitude and increase in latency. Conclusion As an objective and convenient method, P-VEP can be used to evaluate the curative effect of monocular amblyopia in children.
Key words amblyopia children pattern-visual evoked potential (P-VEP)
摘要 目的 探讨基本治愈的单眼弱视患儿的弱视眼与对侧优势眼间P-VEP波幅及潜伏期时值的差异，提出评价弱视基本治愈的客观检测标准。 方法 对不同弱视程度（轻度、中度、重度）和不同病因（内斜视、外斜视、上斜视、屈光参差）的39例基本治愈的单眼弱视患儿进行双眼P-VEP检查，记录其波幅及时值，以对侧优势眼作为对照组，对波幅及时值进行统计学分析。 结果 按弱视程度分类的弱视组P-VEP波幅及时值均与对照组间（优势眼）存在显著性差异，即：弱视组振幅降低，潜伏期时值延长；按弱视病因分类的弱视组P-VEP波幅及时值与对照组间亦存在显著性差异。结论 P-VEP是一种客观的、无创的、能够较为准确反映视功能的检查，在弱视的疗效评价中具有重要作用，较临床视力更为精确，可将其作为判断弱视治愈的标准之一。
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