Table of Contents
- Overview
- Symptoms
- Treatment
- Prevention
- Images
Conjunctivitis is swelling (inflammation) or infection of the membrane lining the eyelids (
Alternative Names
Inflammation - conjunctiva; Pink eye
Causes, incidence, and risk factors
The conjunctiva is exposed to bacteria and other irritants. Tears help protect the conjunctiva by washing away bacteria. Tears also contain enzymes and
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 (rarely)
- Use of contact lenses (especially extended-wear lenses)
"Pink eye" refers to a viral infection of the conjunctiva. These infections are especially contagious among children.
Newborns can be infected by bacteria in the birth canal. This condition is called ophthalmia neonatorum, and it must be treated immediately to preserve eyesight.
See also:
Allergic conjunctivitis Keratoconjunctivitis sicca Neonatal conjunctivitis Trachoma Vernal conjunctivitis
Images
Review Date: 08/03/2010
Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of
Physician Assistant Studies, University of Washington, School of
Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director,
A.D.A.M., Inc.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)
