Methods A tunnel should be made first during the operation,transferring the frontal muscles first down to the terminal site through the tunnel,sutured with M.levator palpebrae and fixed on tarsales.

• 方法术式要点为在术中预制眶膈膜后隧道,牵引额肌瓣经过此隧道向下移行到提上睑肌睑板止点处,与提上睑肌吻合后缝扎固定在睑板上。