Health A-Z

Medical Content Created by the Faculty of the Harvard Medical School



Symptoms of keratitis include:

  • Red eye

  • Sensation of something, like sand, in the eye

  • Pain

  • Sensitivity to light

  • Watery eye

  • Blurred vision

  • Difficulty keeping the eyelids open

When caused by an injury or infection, such as herpes simplex virus, keratitis usually affects only one eye, but both eyes may be affected when keratitis is due to other causes.

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From Health A-Z, Harvard Health Publications. Copyright 2007 by the President and Fellows of Harvard College. All rights reserved. Written permission is required to reproduce, in any manner, in whole or in part, the material contained herein. To make a reprint request, contact Harvard Health Publications. Used with permission of StayWell.

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