Blepharoptosis refers to the fact that the upper eyelid cannot be lifted completely when the patient looks up due to the weakening or loss of levator palpebrae muscle function, and the eyelid margin covers part or all of the pupils. Correction of ptosis refers to the surgical correction of levator palpebrae superioris and its innervated nerves, so as to restore the function of levator palpebrae superioris and correct ptosis. The cost of ptosis correction surgery is about 2000- 1 10,000 yuan. One-time operation is enough, and the postoperative effect is good, which can be maintained permanently.