1, embedding double eyelids: the operation is simple, and it can be remedied if it is not ideal, but the effect is relatively short compared with Korean double eyelids and double eyelids, usually in 5-6 years; 2, cut double eyelids: compared with buried double eyelids, the incision method keeps the effect for a long time, which can be said to be lifelong. 3, Korean double eyelids: no surgery, no scars, no traces, the duration is between cutting double eyelids and embedding double eyelids, generally 8- 10 years.