女,7岁。因发作性失明两个月就诊。两个月来患儿发作性双眼黑,无抽搐或大小便失禁。每次持续十几秒,自行缓解,视力恢复正常。发作后精神好,可继续原来的活动。每隔3～5天发病,每天发病十余次,多于早晨发病。继往无类似发作。否认癫家族史。曾在当地医院查脑CT、脑电图均无? Female, 7 years old. Due to episodes of blindness two months treatment. Occurred in two months in children with brown eyes, no convulsions or incontinence. Each time for more than ten seconds, relieve themselves, visual acuity returned to normal. Good spirit after the attack, you can continue the original activities. Incidence every 3 to 5 days, the incidence of more than ten times a day, more than the onset of the morning. No similar attack ever happened. Denied the family history of epilepsy. Have a brain CT at a local hospital, EEG are not?