When you say double eyelids, you are talking about single eyelids. Double eyelid means that the skin of the upper eyelid has a shallow groove above the eyelid margin. When you open your eyes, the skin under this groove moves upward, while the skin above this groove hangs loosely at the double eyelid groove and folds down. At present, the surgical methods are mainly divided into catgut embedding, incision and Korean incision. Different surgical methods have different prices, ranging from several hundred yuan to several thousand yuan, and different hospitals have different prices. Suggestion: If you want to do double eyelid surgery, try to go to a regular hospital and let the doctor see what kind of surgery is suitable for you according to your personal situation, so the effect will be better.