The inversion of the edge of an eyelid is called

entropion

Explanation:

Entropion is a condition in which your eyelid, usually the lower one, is turned inward so that your eyelashes rub against your eyeball, causing discomfort. Entropion is a condition in which your eyelid turns inward so that your eyelashes and skin rub against the eye surface.

death, cancer and other harmful things to the body

explanation:

i think it's the first one because doctors aren't the ones who get rid of the old needles. most of them time it's not even doctors who give you shots, it's nurses.