In double eyelid surgery, ophthalmologists call it blepharoplasty. Whether there is double eyelid depends on whether there is anatomical basis, that is, the separation point between orbital septum and levator palpebrae aponeurosis must be located at the upper edge of eyelid plate. The separation point of orbital septum and levator palpebrae aponeurosis in Caucasians is located at the upper edge of eyelid plate, so the separation point of levator palpebrae aponeurosis is is mostly located at the front edge of eyelid plate, and even some people's orbital fat is separated forward, so most orientals have single eyelids, and even some people's eyelids are "swollen" eyes. In addition, if the separation point is high, the double eyelids will be larger, otherwise they will be smaller, or an "inner double eyelid" will be formed, that is, the lower lip of the double eyelids will be covered by the upper lip. Double eyelid surgery can increase the stereoscopic effect of eyes and make them look big and energetic. But not everyone is fit to be double eyelid surgery. The following conditions are not suitable for double eyelid surgery: If the eyes are small and the blepharoptosis is smaller than normal (28 mm), making double eyelids will obviously widen the middle part of the blepharoptosis, giving people a round and stunned feeling; People who "soak their eyes" should not have double eyelids. Because there is too much fat under the eyelid, it will still droop when you open your eyes to cover the heavier eye groove, which will make the upper part of the surgical suture thicker and protruding, and the eyelid width will be narrowed accordingly, and the double eyelid surgery effect is better; People with scar constitution. After skin collision or surgery, hyperplastic scars are produced after the wound or knife edge, and the surface is uneven. Double eyelid surgery is indispensable for spreading breathtaking charm. Double eyelid surgery can make people feel refreshed and have a sweet smile, and good luck will naturally come easier. Before double eyelid surgery, doctors usually designed double eyelid surgery scheme according to the aesthetic characteristics of eyes, taking into account personal temperament, and did not accept various requirements such as eye incision and scar.