患者男32岁于1990年11月26日早晨起床时发现右眼视力锐减,视野小,休息后未能缓解,当天下午来诊。患者有先天性心脏病(法乐氏四联症)病史,曾因心衰住本院内科治疗。本次发病前,有不规则发作的一过性视力减退现象,每次发作数分钟至1小时,以后自行缓解,视力恢复如初,未予诊治。体温36.5℃,脉搏108次/分,呼吸稍急促,口唇和甲床发绀,杵状指。颈静脉充盈,心前区无隆起, Male 32-year-old patient on the morning of November 26, 1990 wake up and found that sharp reduction in visual acuity of the right eye, small field of vision, failed to ease after rest, the day afternoon visit. Patients with congenital heart disease (tetralogy of Fallot) history, had heart failure to live in our hospital medical treatment. Before the onset, there is a transient onset of visual acuity, the number of attacks per minute to 1 hour, after the self-remission, vision recovery as ever, no diagnosis and treatment. Body temperature 36.5 ℃, pulse 108 beats / min, breathing a little urgency, lips and nail bed cyanosis, clubbing refers to. Jugular vein filling, precordial area without uplift,