Pink eye, also known as conjunctivitis, is an inflammation of the conjunctiva, the clear membrane that covers the white part of the eye and lines the inner surface of the eyelids.
It can be caused by various factors, including viral or bacterial infections, allergies, or irritants like smoke or chemicals.
Common symptoms of pink eye include redness, itching, tearing, discharge, and a gritty feeling in the eye.
Depending on the cause, pink eye can be contagious and may require medical treatment, such as eye drops or antibiotics for bacterial infections.