Marcus——Gunn 综合症以上睑下垂、张口或嘴嚼时提上睑肌收缩,上睑向上抬起为特征。笔者遇到一例特殊类型,报告如下。患儿陈××女 7岁家长发现患儿自幼左眼看东西时斜视,于1991年10月5日就诊。患儿既往健康,智力发育正常,第一胎足月顺产,无外伤史,母妊期无服药史,父母非近亲结婚。全身检查未见异常,智力正常双眼视力均1.0。眼底正常。第一眼位正,遮盖试验无隐斜。左眼向内上转亢进,不伴歪头斜颈。向上注视时,左眼有时正位,有时外斜20°—25°。双眼睑裂对称,平视时双睑裂均为8mm。双眼提上睑肌力均为11mm。向左右注视、咀嚼和歪嘴时,双眼睑均无变化。当做吸水动作时,左上睑明显退缩,但不抬高。同视机检查:融合点+1°L/R1°=他觉斜角,融合功能及立体视觉正常。左眼滴入1%付肾上 Marcus - Gunn syndrome is characterized by ptosis of the upper eyelid, contraction of the upper levator muscle and elevation of the upper eyelid when it is ptosis, mouth opening or chewing. I encountered a special type of report is as follows. Chen × × children with children 7-year-old parents found their children left eye to see things strabismus, on October 5, 1991 treatment. Children with previous health, normal mental development, full-term first-trimester of birth, no history of trauma, no history of taking during the mother’s pregnancy, parents marry non-relatives. No abnormalities in the whole body examination, normal intelligence, binocular vision are 1.0. Fundus normal. The first position is positive, no hidden test occlusion test. Turn left inward turn hyperthyroidism, without tilted head tilt neck. When looking up, the left eye is sometimes upright, sometimes with an oblique 20 ° -25 °. Eyelid fissure symmetry, double-headed palpitation were 8mm. Eyelid muscle strength of both eyes were 11mm. Eyes to the left and right, chewing and crooked mouth, no change in both eyelids. As a water-absorbing action, the left upper eyelid was significantly reduced, but not elevated. With the same examination: fusion point + 1 ° L / R1 ° = he felt beveled, fusion and stereopsis normal. Left eye drops 1% to pay on the kidney