Corneal Disorders
Educational information. Individual clinical review of this presentation by Dr. Ehsan is not yet documented. It does not replace personal medical evaluation.
Source: MedlinePlus, National Library of Medicine. Read the original source
MedlinePlus data edition September 26, 2026. Imported September 27, 2026. These dates do not indicate a new clinical review of the article.
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
Symptoms, tests and care options
Further reading selected by MedlinePlus. Links open the original organizations’ websites.
- Cornea Transplant · Mayo Foundation for Medical Education and Research
- Dilating Eye Drops · American Association for Pediatric Ophthalmology and Strabismus
- Eye Problems: Symptom Checker Flowchart · American Academy of Family Physicians
- Eye Symptoms · American Academy of Ophthalmology
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For a life-threatening emergency, call 911 in the U.S. or your local emergency number.
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