DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Acute conjunctivitis of a 72 year old woman's eye. Conjunctivitis is an inflammation of the conjunctiva, the delicate mucous membrane covering the front of the eye and the insides of the eyelids. The conjunctiva becomes red, swollen and may discharge water or pus (yellow exudate). Conjunctivitis is caused by a bacterial or viral infection, allergy, or by physical or chemical irritants. Bacterial infections respond to antibiotic eye drops. Uncomplicated conjunctivitis is generally not serious and does not usually affect vision.
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