A.1~2mm B.8~9mm C.2~3mm D.3~4mm E.5~6mm
A.動(dòng)眼神經(jīng)麻痹 B.先天性上瞼下垂 C.重癥肌無力 D.面神經(jīng)麻痹 E.視神經(jīng)萎縮