Pink eye (conjunctivitis) is when the clear layer of tissue that lines the eyelids and covers the white of the eye becomes swollen or inflamed. Pink eye can be caused by an infection, irritant, dry eyes, or an allergy. Depending on the cause, it may be contagious.
In this video, learn the symptoms of pink eye and tips to prevent it.
References
Hashmi, M. F., et al. (2022). Conjunctivitis. StatPearls.
Jacobs, D. S. (2023). Patient education: Conjunctivitis (pink eye) (Beyond the Basics). UpToDate.
MedlinePlus. (2022). Conjunctivitis or pink eye.
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Written by:
Brittany DoohanBrittany Doohan was the Content Director at HealthiNation and is currently the Editorial Director at Medscape. Through her work with Medscape, she won a Silver Telly Award in May 2022 for "Sleepless Nation: A Public Health Epidemic — Episode 2: A Decade Without a Diagnosis." She has worked in health journalism and video production for more than 8 years, and loves the challenge of explaining complex topics in an easy-to-understand and creative way.

Reviewed by:
Brian Clista, MDDr. Clista is a board-certified pediatrician who works in private practice in Pittsburgh, Pennsylvania. He previously served as a National Health Service Corporation Scholar in the inner city of Pittsburgh for 11 years.
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