Pink eye, or conjunctivitis, is one of the most common and treatable eye conditions in the world. It can affect both children and adults. It is an inflammation of the thin, clear tissue that lines the inside of the eyelid (conjunctiva) and the white part of the eyeball. This inflammation makes blood vessels more visible and gives the eye a pink or reddish color.
The symptoms may vary, but usually include:
There are four main causes of pink eye:
It can be difficult to determine the exact cause of pink eye because some signs and symptoms may be the same no matter the cause.
Wash your hands and help children was their hand to help keep pink eye from spreading.
When pink eye is caused by a virus or bacteria, it is very contagious. It can spread easily and quickly from person to person. Pink eye caused by allergens or irritants is not contagious. Follow these simple self-care steps to reduce the risk of getting or spreading pink eye:
See conjunctivitis prevention for more information.
There are times when it is important to see a healthcare provider for specific treatment and/or follow-up. You should see a healthcare provider if you have pink eye along with any of the following:
See conjunctivitis treatment for more information.
Pink eye in newborns can be caused by an infection, irritation, or a blocked tear duct. A newborn baby who has symptoms of pink eye in the first two weeks after birth should see a healthcare provider.
Newborn pink eye caused by sexually transmitted infections, like gonorrhea or chlamydia, can be very serious. Visit your healthcare provider for testing and treatment if you are pregnant and think you may have a sexually transmitted infection. If you don’t know whether you have a sexually transmitted infection but have recently given birth and your newborn shows signs of pink eye, visit your child’s healthcare provider right away.
Most hospitals are required by state law to put drops or ointment in a newborn’s eyes to prevent pink eye. For more information, see conjunctivitis in newborns.