How long the effect of double eyelid plastic surgery can last depends on the choice of surgical methods. Generally speaking, the time that double eyelids can be maintained is different with different surgical methods. In addition, it depends on personal situation and postoperative nursing work. Everyone's body weight is different, and the degree of postoperative nursing work is different, which will also affect the maintenance time of double eyelid cutting effect. Generally, the choice of incision can be reserved exclusively and permanently, Korean incision can be reserved for several years to decades, some catgut embedding methods may be reserved permanently, and some beauty lovers will restore their inner double eyelids or single eyelids after 2-3 years.