But many people have doubts: Is the double eyelid effect after double eyelid surgery permanent? Xinhua Plastic Surgery Expert of Dalian University said that there are generally catgut embedding and incision methods in double eyelid surgery, and the double eyelid surgery effect of catgut embedding will not last long. After about 2-3 years, the double eyelids will disappear. But incision can keep a permanent effect. Double eyelid incision method: cut the eyelid layer by layer at a certain position along the design line, treat the tissues such as muscle, fat and lacrimal gland, and then reset and suture the upper eyelid structure. After the tissue heals, the new upper eyelid structure will be permanently fixed and will not disappear. Because the incision can remove sagging skin or excess skin at the same time, it can handle heavy muscles and complete thin double eyelid lines, so it not only realizes the effect of double eyelids, but also corrects excess fat. Therefore, patients with loose skin or excessive fat on the upper eyelid, elderly patients with loose skin and eyelid edema, and patients with triangle eye caused by loose outer canthus are particularly suitable for incision double eyelid surgery.