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Introduction to Corneal Disorders

By Melvin I. Roat, MD, FACS, Jefferson Medical College, Thomas Jefferson University

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Patient Education

The cornea is subject to infection, noninfectious inflammation, ulceration, mechanical damage, and environmental injury. Infection (keratitis), frequently with secondary conjunctivitis, can be due to viruses, bacteria, Acanthamoeba, or fungi. Ulceration usually represents progression of keratitis. Symptoms that suggest corneal involvement rather than simple conjunctivitis include pain, particularly with exposure to light, and decreased visual acuity. Evaluation of the cornea requires slit-lamp examination and sometimes microbial studies.

Pearls & Pitfalls

  • Do a slit-lamp examination and fluorescein staining if patients have a red eye with pain, foreign body sensation, and/or decreased visual acuity.

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* This is the Professional Version. *