Eyelid surgery is a procedure that creates a crease (double eyelid line) on the eyelid and is broadly categorized into the suture method and the incision method. The suture method creates the crease by securing the anterior and posterior layers of the eyelid at several points with sutures, without making a long incision in the skin. While it leaves almost no scarring and swelling tends to subside relatively quickly, it is known that the crease may loosen or become shallower over time. The incision method involves making an incision along the crease to remove excess skin or eyelid fat while securing the crease. It is often used for sagging skin or thick eyelids and is said to provide relatively longer-lasting results. However, it takes about a week to remove the stitches from the upper eyelid, and it may take longer for the swelling to subside. Which method is appropriate depends on factors such as eyelid thickness, skin laxity, fat volume, and the desired crease shape; there is no single “correct” answer, and recovery speed and results vary significantly from person to person. This information is for reference only and does not constitute a diagnosis. Please consult a specialist before undergoing any procedure.
[Source] https://my.clevelandclinic.org/health/treatments/8409-eyelid-surgery-blepharoplasty · https://my.clevelandclinic.org/health/symptoms/22413-monolid-eyes