Lacrimal gland prolapse develops in adolescence, with swollen eyelids evident on the lateral side of the upper eyelid and worsens with each passing year. Careful touching can palpate a small, soft, pushable mass on the lateral eyelid (eyelid) that is painless, asymptomatic, and affects the aesthetic appearance. The normal lacrimal gland is located in the lacrimal fossa on the outside of the eyebrow and cannot be touched by normal people. Its function is to secrete tears and protect the eyeball, so unless it is a special case, the lacrimal gland is usually not removed, and surgery to return the prolapsed lacrimal gland to the lacrimal fossa allows you to do double eyelids at the same time, killing two birds with one stone.