In East Asian populations, the combination of an epicanthic fold and mono-eyelid is one of their anatomical characteristics. Misalignment of the orbicularis oculi muscle and fibrous connections leads to longitudinal tension, forming the epicanthic fold. The epicanthic fold may diminish the aesthetic effects of eyelid cosmetic surgery, shorten the horizontal length, and affect the postoperative shape of double eyelids. As upper eyelid cosmetic surgery is one of the most common cosmetic procedures in Asia, there is increasing attention on the modification of the epicanthic fold and its impact on the formation of double eyelids.

Inclusion Criteria:

• 1: Patients who have previously undergone unsatisfactory blepharoplasty, combined with epicanthic fold issues;

  2: Underwent epicanthoplasty in this center

  3: over 18-year-old and less than 60-year-old

  4: Clinical data was comprehensive.

Exclusion Criteria:

• 1: The patient has concurrent untreated lacrimal defects, excessive eyelid skin, and other complications such as entropion and ectropion.

In East Asian populations, the combination of an epicanthic fold and mono-eyelid is one of their anatomical characteristic. The epicanthic fold may diminish the aesthetic effects of eyelid cosmetic surgery, shorten the horizontal length, and affect the postoperative shape of double eyelids