Pinkeye Summary Conjunctivitis is the medical name for pink eye. It involves inflammation of the outer layer of the eye and inside of the eyelid. It can cause swelling, itching, burning, discharge, and redness. Causes include Bacterial or viral infection Allergies Substances that cause irritation Contact lens products, eye drops, or eye ointments Pinkeye usually does not affect vision. Infectious pink eye can easily spread from one person to another. The infection will clear in most cases without medical care, but bacterial pinkeye needs treatment with antibiotic eye drops or ointment. NIH: National Eye Institute National Eye Institute Specifics Allergic Conjunctivitis American Academy of Family Physicians Eye Allergies American Academy of Ophthalmology Array Allergic conjunctivitis Conjunctivitis Vernal conjunctivitis Find an Expert American Academy of Ophthalmology American Academy of Ophthalmology American Optometric Association American Optometric Association National Eye Institute National Eye Institute Treatments and Therapies Choosing Wisely When It Comes to Eye Care: Antibiotics for Pink Eye American Academy of Ophthalmology Clinical Trials ClinicalTrials.gov: Conjunctivitis National Institutes of Health Start Here Conjunctivitis (Pink Eye) Centers for Disease Control and Prevention Facts About Pink Eye National Eye Institute Pink Eye (Conjunctivitis) Mayo Foundation for Medical Education and Research Children Conjunctivitis (Pink Eye) in Newborns Centers for Disease Control and Prevention Pinkeye Nemours Foundation Pinkeye (Conjunctivitis) (For Parents) Nemours Foundation Diagnosis and Tests Dilating Eye Drops American Association for Pediatric Ophthalmology and Strabismus Health Check Tools Eye Discharge DSHI Systems Eye Redness DSHI Systems Encyclopedia Neonatal conjunctivitis Images Pink Eye (Conjunctivitis) Logical Images Teenagers Pinkeye (Conjunctivitis) Nemours Foundation Journal Articles Pinkeye