The operation method is simple and convenient, with little pain for patients, slight postoperative swelling and little influence on work and life. There is no need to bandage and remove stitches, and the recovery is fast. Normal 1 -2 weeks after natural recovery. Once the surgical effect is not ideal, it can also be corrected by incision. No scar after operation, suitable for people with scar constitution. The biggest problem of this method is that the long-term effect is uncertain. Many people can only last 2 -5 years after the formation of double eyelids.