DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Allergic conjunctivitis. Close-up of the bloodshot eye of a contact lens wearer. The redness in the white of this patient's eye is caused by allergic conjunctivitis: inflammation of the membrane (the conjunctiva) that lines the inside of the eyelids and covers the white of the eye. Allergic conjunc- tivitis in contact lens wearers is usually caused by sensitivity of the conjunctiva to the solutions used to clean or store the lenses. It may also be due to sensitivity to changes in the mucus in the eye, caused by wearing contact lenses. Treatment involves not wearing contacts lenses for several months, and then trying new lenses and different solutions. Antihistamine eyedrops may be given.
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