Ptosis is a disorder when the upper eyelid droops over the eye. The eyelid may droop just a little, or so much that it covers the pupil. Ptosis can partially or even completely block normal vision.

Children and adults can have ptosis. It can occur in one eye or both eyes at the same time. Sometimes it is a problem that changes a person's appearance without affecting vision or health. In other cases, it can only be a warning sign that a more serious condition is affecting the muscles, nerves, brain or eye socket. Ptosis can be present at birth (congenital) or develop later in life (acquired).

It can be corrected with proper treatment that may not be necessary in cases where there is no impact on vision.

Diagnosis

The diagnosis of ptosis can be done by the eye doctor. Your doctor will likely perform a physical exam and ask you about your medical history. Once you’ve explained how often your eyelids droop and the length of time this has been happening, your doctor will perform some tests to find the cause. The tests are as follows: