1　病例报告患者女性,9岁,自幼双眼视力不佳,左眼尤著,左眼外斜视,于2 0 0 3年1月13日来诊。既往无夜盲及眼病史,无外伤史,家族中无类似病史,家系中三代内无近亲结婚史,患儿母亲否认宫内感染史。全身检查未见异常,无指趾畸形。眼部检查:视力:右0 7,左0 1,散瞳检影验光:右+1 0 1 case report Female patients, 9 years old, his eyes poor eyesight, especially the left eye, left eye exotropia, came January 13, 2003 diagnosis. No previous history of night blindness and eye disease, no history of trauma, no similar family history, family history of no marriage within three generations, children with mother’s history of denial of intrauterine infection. No abnormalities in body check, no digit deformity. Eye examination: visual acuity: right 0 7, left 0 1, mydriatic retinoscopy optometry: the right +1 0