DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Viral conjunctivitis. Close-up of the bloodshot eye of a 62-year-old male patient with viral conjunctivitis. Conjunctivitis is caused by an infection of the conjunctiva - the membrane lining the inside of the eyelids and covering the exposed part of the eyeball. There is no specific cure, and it usually clears up without treatment.
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