先证者男，１６岁。无明显诱因下出现右眼视物模糊２个月，半月前，左眼也出现同样情况。当地医院按“双眼视神经乳头炎”治疗，无明显好转。患者原双眼近视，视力均可矫正至正常，否认有中毒、外伤、药物过敏史等。家族中已有其他７人发病。体格检查：全身情况良好。右眼... Proof of male, 16 years old. There is no obvious incentive to appear under the right eye blurred vision 2 months, a half months ago, the left eye also appeared the same situation. According to the local hospital “binocular optic neuritis” treatment, no significant improvement. Patients with myopia eyes, visual acuity can be corrected to normal, deny poisoning, trauma, drug allergy history. There are already seven other people in the family. Physical examination: the general condition is good. Right eye ...