患者,男,21岁,因自出生以来双上睑不能上抬入院,否认传染病及毒物接触史,父母非近亲婚配,外祖母及二舅双眼均患先天性上睑下垂。查体:一般状态良好,心肺无异常,肝脾未触及。头颅无畸形,双上睑上抬完全受限,遮盖角膜上半1/3,平视双睑裂0.9cm,用力睁眼1.0cm,双眼内眦间距4.2cm,内外眦间距3.6cm, Patient, male, 21 years old, can not be admitted to hospital with double upper eyelid since birth, deny contagious disease and poison contact history, parents non-relative marriage, grandmother and second-uncle both have congenital ptosis. Physical examination: the general state of good, no abnormal heart and lung, liver and spleen not touched. No deformity of the skull, double upper eyelid elevation is completely limited, covering the upper half of the cornea, flattened double-eyelid tear 0.9cm, hard eyes open 1.0cm, binocular pitch 4.2cm, inside and outside 眦 spacing 3.6cm,