Ptosis is when the upper eyelid droops over the eye. “Ptosis” is the medical term for a drooping upper eyelid. Eyelid drooping can sometimes affect your vision if it’s severe. The eyelid may droop just a little, or so much that it covers the pupil. Ptosis can decrease or even block normal vision. Children and adults can have ptosis. Fortunately, this condition can be treated to improve vision as well as appearance.
You can get it several ways. Sometimes, babies are born with it. You could get ptosis as an adult when the nerves that control your eyelid muscles are damaged. It might follow an injury that loosen/weakens the muscles and ligaments that raise your eyelids. Sometimes, it comes with age. The skin and muscles around your eyes get weaker. Surgery- like LASIK or cataract surgery can stretch your eyelid. An eye tumor can cause ptosis, too.