Many single eyelid people choose to do double eyelid surgery in order to improve the beauty of their eyes, but due to some accidental failure during the surgery, facing this situation it is necessary to perform double eyelid repair surgery in order to improve the beauty of the eyes. There are some people who would like to know what is double eyelid surgery and what is the principle of the surgery. Double eyelid surgery is a surgical or non-surgical procedure to improve the appearance of double eyelids caused by natural or acquired double eyelid surgery, such as double eyelid blepharoplasty, partial or complete loss of the eyelid line, double eyelid widening or narrowing of the eyelid, interruption of the curvature of the eyelid, bilateral asymmetry, double eyelid thickening, scarring, difficulty in lifting the eyelid, and poor eyelid closing, and other eye problems that exist in double eyelid surgery. Double eyelid repair surgery requires a high level of skill and greatly tests the skill of the surgeon. During the surgery, the sides are balanced as much as possible and the aesthetics are natural. Women with small upper eyelids can have their scars removed and then stitched up during scar revision surgery, while larger scars are removed and then implanted to ensure that the surgery is effective. If scars appear after double eyelid surgery, double eyelid repair surgery is required. Do you know the reasons why scars appear? 1, The angle between the direction of the incision and the texture of the skin. 2.Surgeon’s suture technique, the more accurate the skin edges are aligned, the less obvious the scars will be. 3.Mainly caused by infection, trauma or burns, etc. It may also be caused by the removal of moles, hemangiomas or cysts in the eye area. 4.Quality suture material, sharp suture needle, fine and soft fine suture needle and thread will also affect the quality of suture.