Ageing is the most common cause of drooping eyelids.
The long-term effects of gravity and aging cause stretching of a wide, tendon-like tissue that helps the levator muscle lift the eyelid. Although both eyes usually are affected, drooping may be worse in one eye.
Drooping of the eyelids may develop gradually over decades. Sometimes droopy eyelids can become an isolated problem that changes a person's appearance without affecting vision or health.
A drooping eyelid is also called ptosis.
In this condition, the border of the upper eyelid falls to a lower position than normal. In severe cases, the drooping eyelid can cover all or part of the pupil and interfere with vision.
Drooping eyelids can affect one or both eyes