Pink Eye

Eyes | Ophthalmology | Pink Eye (Symptom)


It refers to inflammation of the conjunctiva, mucous membrane that lines the inside of the eyelids of vertebrates and extending to the front of the eyeball. Manifestations occur such as redness, photophobia and tearing. Other manifestations depend on a particular cause (infectious crusts in the morning, enlarged lymph nodes in the viral, allergic pruritus in, etc).

The conjunctiva is exposed to bacteria and other irritants. Tears help protect the conjunctiva by washing away bacteria. Tears also contain enzymes and antibodies that kill bacteria.


There are many causes of conjunctivitis. Viruses are the most common cause. Other causes include: allergies (allergic conjunctivitis), bacteria, certain diseases, chemical exposure, chlamydia, fungi, parasites, and use of contact lenses (especially extended-wear lenses).

Diagnosis and Treatment

Treatment for pink eye can vary widely, depending on what causes the eye condition. Antibiotics usually are the mainstay of treatment for bacterial forms of conjunctivitis. Warm compresses placed on closed eyelids may help soothe the eyes if the treated condition is viral or bacterial conjunctivitis. If eyes are itchy, scratchy and irritated most of the time, eye drops or pills to treat eye allergies can be prescribed.