BARRAQUER, BARCELONA, ISM / SCIENCE PHOTO LIBRARY BARRAQUER, BARCELONA, ISM / SCIENCE PHOTO LIBRARY
Keratitis. Fluorescein dye (with blue excitation) being used to highlight the alteration (patchy areas) of the corneal epithelium of a patient's left eye in a case of keratitis. This is an inflammation of the cornea, the transparent front part of the eye. The symptoms of keratitis include eye pain, excessive watering and blurred vision.
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