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对７对双生子（ＭＺ４对，ＤＺ３对）的弱视儿童进行了视力及多导视觉诱发电位分析。经配对ｔ－检验结果表明，ＭＺ之间尽管临床检查视力有差异，但ＶＥＰ潜伏期（ＬＰ＿１）无差异（Ｐ＞０．０５）。４对ＭＺ中均仅有一人为双眼弱视，似乎表明环境因素对弱视的发病起着重要作用。
Visual acuity and multi-visual evoked potential analysis were performed on amblyopia in seven pairs of twins (MZ4 versus DZ3). Paired t-test results showed that there was no difference (P> 0.05) in VEP latency (LP_1) despite differences in visual acuity between MZs. Only one of four pairs of MZ was binocular amblyopia, it seems that the environmental factors play an important role in the incidence of amblyopia.