Director Luo Zhimin, an eye plastic surgery expert at Shenzhen-Shenzhen-Chunri-Medical-Hospital, said that the design of eye plastic surgery for double eyelids is very fine and should be calculated in millimeters. Strictly speaking, people's eyes are not absolutely symmetrical, only relatively symmetrical, but if you don't look at this relative symmetry carefully, you can't see the difference. When designing a double eyelid incision, experts should determine the length and height of the incision line from the top, bottom, left and right directions as a reference, and repeatedly compare the contrast between the two sides to ensure bilateral symmetry after operation. Oriental people have many single eyelids, even double eyelids, the width of which is mostly within 1cm. Except for some ethnic minorities and individuals, the width of China people's double eyelids is generally between 0.5 and 0.8 cm. If you are tall, oval-faced, or for some reason, you can make your eyes wider, but it is best not to exceed this width. So who is suitable or not suitable for double eyelid cosmetic surgery? Patients who are healthy and mentally normal and actively ask for surgery are suitable for double eyelid cosmetic surgery. Patients with local eyelid inflammation, eye diseases, ophthalmoplegia, exophthalmos and unrealistic requirements are not suitable for double eyelid cosmetic surgery. Because everyone's eyelids are different in structure and shape, different surgical methods are used when forming double eyelids. The methods of double eyelid cosmetic surgery can be divided into suture and incision. ① Sewing method. This method is to sew the dermis of the skin to the tarsus or levator palpebrae aponeurosis, or directly tie the skin and conjunctiva on the upper edge of the tarsus, and form a double eyelid through the scar adhesion formed by surgical trauma. This method is suitable for patients with thin upper eyelid skin and young patients. ② Incision method. This method is to cut the skin at the appropriate position of the upper eyelid skin, remove part of the orbicularis oculi muscle or orbital septum fat, and suture the skin incision with meibomian or levator palpebrae aponeurosis. This method is suitable for patients of any age, especially for elderly patients with loose and swollen upper eyelid skin. Of course, postoperative care of double eyelids is also very important. Although this is a minor operation, there will still be some complications if you don't pay attention to nursing. Double eyelid plastic surgery can generally be completed in the outpatient operating room, and patients can go home to rest after surgery. The dressing on the wound can be removed 24 hours after operation, and the blood scab on the eye secretion and incision can be removed. All sutures in the operation area can be removed 5-7 days after incision double eyelid operation. Although it is normal to have slight congestion or swelling in the eyelid area after double eyelid plasty, the swelling usually begins in 5-8 days, and it takes 2-3 months to return to nature after complete swelling. Shenzhen-Shenzhen-Spring-Medical-Hospital experts remind: Eyes are known as the window of temperament, and a pair of bright eyes will greatly improve your charm index and beauty index. Double eyelid plastic surgery is one of the most mature plastic surgery at present, which is safe and reliable, but we must choose a regular beauty hospital for surgery.