先证者,男,20岁,因双上睑自幼抬起受限,要求手术入院。家族中无近亲婚配史。全身检查未发现异常。眼科检查:双眼视力均1.5。睑裂高度测量,向前看,双眼均6mm;向上看,左、右眼分别为3、5mm;向下看,左、右眼为3、4mm。提上睑肌功能测量(压迫额肌法):双眼均为0级。双眼球运动向上受限,其 Proof of the card, male, 20 years old, was raised due to double upper eyelid restricted, requiring surgery admission. No family history of marriage. No abnormalities were found in the whole body examination. Eye examination: binocular vision are 1.5. Palpebral fissure height measurement, forward looking, eyes are 6mm; looking up, left and right eyes were 3,5 mm; looking down, left and right eyes to 3,4 mm. Levator muscle function measurement (oppressive amount of muscle method): both eyes are 0 level. Eyes are limited upward movement, which