For single eyelids, blepharoplasty (what people call double eyelids) is undoubtedly the first choice to change the shape and demeanor of the eyes. It is supposed to be for beauty, but there is no shortage of unsatisfactory and unsuccessful results such as too wide or too narrow incisions and obvious scars, which cause a lot of trouble in many people’s lives and work. After double eyelid plastic surgery, it takes about a year to achieve a natural look. However, some patients start to panic when the double eyelid is still in the recovery period, worrying about the failure of the surgery, which indirectly affects the recovery of the double eyelid. Double eyelid restoration is a second surgery (i.e. restoration surgery) for patients who have failed surgery for various reasons or with serious consequences, so that the double eyelids can be restored and improved to a more natural appearance, but in general this restoration surgery is more difficult than the first surgery, the risk is higher, and the level of skill of the surgeon is also more demanding, why? The reason is that the amount of tissue in the eye itself is already very small, and after the trauma brought about by the first surgery, the amount of tissue will be even less, so relatively speaking the tissue used for suturing and modification will be even less, so the repair is difficult, and if the repair is not good at one time, then the difficulty of repairing it afterward will be even greater. It is more difficult to repair a double eyelid that is too wide than one that is too narrow If the double eyelid is too wide, it will be relatively easy to smoothen out the overly wide fold when it is repaired again, but if it is too wide, the repair is likely to come out as a multiple eyelid because the folds from the first surgery usually adhere and are very difficult to remove. Scarring Scarring in most double eyelid surgeries can occur because too much tissue has been removed from underneath the double eyelid incision, causing the skin to adhere to the lid and form a platysma, which is a depression in the skin that looks like a scar in the light. This can lead directly to an unnatural looking blepharoplasty result. In addition, the level, position, height and tightness of the double eyelid surgery suture should be suitable for the operator’s own situation, and a bad suture will cause misalignment, which will directly lead to hyperplastic scarring. So choosing a good hospital and doctor’s is also crucial. Generally speaking, 12 to 18 months after the skin injury, the tension strength of the scar tissue is about 70% to 80% of the normal skin. Therefore, non-invasive treatment measures (e.g., hermetic therapy, laser radiofrequency optical treatment, localized corticosteroid treatment of lesions, etc.) should be implemented within a few weeks of scar formation, and better results will be obtained. Invasive treatments, such as cryotherapy or surgery, are more effective when performed at least 6 months after scar formation. This type of scar surgery requires not only the alignment of the internal tissues but also flat sutures when repairing the scar, in which case the skill, anatomical knowledge and purity of the surgeon is also required.