Health topic · Ophthalmology

Corneal Disorders

MedlinePlus, National Library of Medicine · Retrieved 2026-10-13

Your cornea is the outermost layer of your eye. It is clear and shaped like a dome. The cornea helps to shield the rest of the eye from germs, dust, and other harmful matter. It also helps your eye to focus. If you wear contact lenses, they float on top of your corneas. Problems with the cornea include: • Refractive errors • Allergies • Infections • Injuries • Dystrophies - conditions in which parts of the cornea lose clarity due to a buildup of cloudy material Treatments…

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Reference details

MedlinePlus topic groups
Eyes and Vision
MeSH terms
Corneal Injuries; Corneal Diseases
XML release date
10/13/2026 02:30:36

Overview

Your cornea is the outermost layer of your eye. It is clear and shaped like a dome. The cornea helps to shield the rest of the eye from germs, dust, and other harmful matter. It also helps your eye to focus. If you wear contact lenses, they float on top of your corneas. Problems with the cornea include: • Refractive errors • Allergies • Infections • Injuries • Dystrophies - conditions in which parts of the cornea lose clarity due to a buildup of cloudy material Treatments of corneal disorders include medicines, corneal transplantation, and corneal laser surgery. NIH: National Eye Institute

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Retrieved: 2026-10-13. Text has been organized for reading; this import has not been independently reviewed by a clinician. It is not individualized medical advice.
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Related references in Ophthalmology

Medical terminology Ophthalmology

Glaucoma, Open-Angle

Glaucoma in which the angle of the anterior chamber is open and the trabecular meshwork does not encroach on the base of the iris.

Medical entity reference Ophthalmology

corneal disease

Human disease. Wikidata entity Q10526382; linked MeSH descriptor D003316. Includes multilingual names and external identifier mappings.