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目的通过用多导图形视觉诱发电位（Ｐ－ＶＥＰ）进一步研究儿童弱视的发病机制及两种弱视之间的相互关系。方法采用１６导视觉诱发电位仪，分别检查了２５例屈光参差性弱视和３３例内斜视性弱视，将检查的Ｐ－ＶＥＰ三个主要参数分别与正常对照组和弱视眼对侧眼的相应参数进行了比较。结果两种类型弱视的三个主要参数的平均结果都发生了明显的改变，内斜视性弱视的对侧眼与正常对照组相比Ｎ１、Ｐ１波的潜伏期也明显延长，振幅下降，说明内斜视对侧眼并非正常；结果还提示屈光参差性弱视其振幅比值较其对侧眼小于０．８、潜伏期大于５ｍｓ，可作为诊断的参考依据。结论临床上根据Ｐ－ＶＥＰ的检查结果来判断弱视是可靠的
Objective To further investigate the pathogenesis of amblyopia in children and the relationship between the two types of amblyopia by using a polygraphic visual evoked potential (P-VEP). Methods Twenty-six visual evoked potentials were used to examine 25 cases of anisometropic amblyopia and 33 cases of strabismic amblyopia. The three parameters of P-VEP were compared with those of control group and the contralateral eye of amblyopic eyes Compared. Results The average results of the three main parameters of the two types of amblyopia significantly changed. Compared with the normal control group, the latency of N1 and P1 wave in the contralateral eye of esotropia amblyopia was significantly prolonged and the amplitude decreased, indicating that the contralateral side of esotropia The eye is not normal; the results also suggest that the anisometropic amblyopia than the amplitude of its contralateral eye is less than 0.8, the incubation period is greater than 5ms, can be used as a diagnostic reference. Conclusion According to the results of P-VEP examination, it is reliable to judge amblyopia