该文报告14岁男孩病例,当患儿向两侧注视时,表现双眼外转散开状异常眼球运动.本例与过去例症不同,出示视标令其向左看,不表现异常的散开运动.左眼的内转微受限,但在旋转运动时,其眼球震颤速度慢.左眼则除外转以外的眼球运动存在明显的限制.对光反应仍缩瞳系无多大异常情况.另外,本症例同时伴有脑积水和锥体路综合症,从而推断异常眼球运动原因是脑干部的生理障碍. The article reports a 14-year-old boy who shows abnormalities in his or her eyes when he or she looks to both sides of the eye. Open movement of the left eye micro-limited micro, but in rotational movement, the nystagmus slow, except for the left eye turn outside of the eye movement there is a clear limit to the light response is still little abnormal miosis. In addition, this case accompanied by hydrocephalus and pyramidal syndrome, which concluded that abnormal eye movement is a physiological obstacle brain stem.