Pink eye, or conjunctivitis, is an inflammation of the conjunctiva in the eye. Conjunctiva are the thin clear tissues that cover the white part of your eyes and line the insides of your eyelids.
There are a number of different causes of pink eye, including:
- Allergies, like dust and pollen
- Certain allergies related to wearing contact lenses
- Irritants such as shampoos, dirt, smoke, and pool chlorine