患儿,男,9岁,学生。1982年11月始,三个月内短暂的失明发作共9次。每次发作前无先兆,发作时无意识丧失,无抽搐。自诉:“每次发病只是两眼发黑,如黑夜一样,睁着眼什么东西也看不见”。发病时患儿常站立不动,或取蹲下姿势,揉眼,等待双眼复明。发作时间几十秒钟或1～2分钟。发作间歇期视力及一切活动正常。 Children, male, 9 years old, student. Beginning in November 1982, a brief episode of blindness occurred within 9 months in 9 months. Before each attack without aura, episodes of unconscious loss, no convulsions. Prosecution: “Each time the disease is just two black eyes, like the night, eyes open what can not see anything.” Children often stand when the disease does not move, or take a crouch posture, Rouyan, waiting for eyes fuming. Attack time of dozens of seconds or 1 to 2 minutes. Intermittent episodes of visual acuity and all activities normal.