Shanghai Time Hospital is the best. Double eyelid incision, also called double eyelid incision, is a permanent double eyelid surgery. It removes loose skin, orbicularis oculi muscle and fat through incision, and directly sutures the skin with orbicularis oculi muscle or levator palpebrae aponeurosis under direct vision to form double eyelid. Cutting double eyelids requires cutting the skin, which is slightly traumatic, but the upper eyelid structure can be adjusted through the incision, and the effect is reliable and lasting, which is suitable for single eyelids in various situations. The swelling time is a little longer, and the wound will leave a linear scar.