The conjunctiva is a membrane on the surface of your eye and the inside of the eyelid. Conjunctivitis (or pink eye) occurs when irritation causes the blood vessels in the conjunctiva to become swollen, inflamed, and red. It often causes the eyes to water or create discharge.
Conjunctivitis may affect one or both eyes. The most common pink eye symptoms include:
- Pink or red coloring and visible blood vessels in the eyes
- Itching, burning, or irritation
- Excessive tearing or discharge
- Crusting or matting of the eyelids and lashes
- Swelling of the eye and eyelids