Eyelid surgery, also known as blepharoplasty, is a cosmetic procedure that removes excess skin, fat, and muscle from the eyelids. This surgery can be performed on the upper eyelids, lower eyelids, or both, and aims to improve the appearance of droopy or puffy eyes. It can also enhance vision in cases where sagging skin obstructs sight. The procedure typically involves making small incisions along the natural lines of the eyelids. Recovery time varies, but most patients can return to normal activities within a week. As with any surgery, potential risks include infection, scarring, and changes in eyelid sensation.