The most common causes of pink eye (conjunctivitis) are: viruses, bacteria, and allergens. But there are other causes for pink eye including chemicals,certain diseases, and contact lens use (the extended-wear type).
Pink, itchy eyes? Know as Conjunctivitis – or pink eye – is common in adults and children. It sometimes needs medical treatment, depending on the cause. Know the pink eye symptoms, get treatment if needed, and prevent it from spreading.