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Corneal Disorders
URL of this page: https://medlineplus.gov/cornealdisorders.html

Corneal Disorders

On this page

Basics

  • Summary
  • Start Here
  • Symptoms
  • Diagnosis and Tests
  • Treatments and Therapies

Learn More

  • Related Issues
  • Specifics
  • Genetics

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  • Images

Research

  • Statistics and Research
  • Clinical Trials
  • Journal Articles

Resources

  • Reference Desk
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For You

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  • Patient Handouts

Summary

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

Start Here

  • Corneal Conditions From the National Institutes of Health (National Eye Institute)

Symptoms

  • Eye Symptoms (American Academy of Ophthalmology) Also in Spanish

Diagnosis and Tests

  • Dilating Eye Drops (American Association for Pediatric Ophthalmology and Strabismus)
  • Eye Problems: Symptom Checker Flowchart (American Academy of Family Physicians) Also in Spanish

Treatments and Therapies

  • Cornea Transplant (Mayo Foundation for Medical Education and Research)

Related Issues

  • Corneal Ulcer (Keratitis) (American Academy of Ophthalmology) Also in Spanish
  • Dry Eye From the National Institutes of Health (National Eye Institute) Also in Spanish
  • Eye Infections from Contact Lenses (American Academy of Ophthalmology) Also in Spanish
  • Shingles (American Academy of Family Physicians) Also in Spanish

Specifics

  • Corneal Abrasions (American Association for Pediatric Ophthalmology and Strabismus)
  • Corneal Laceration Video (American Academy of Ophthalmology) Also in Spanish
  • Fuchs' Dystrophy (Mayo Foundation for Medical Education and Research)
  • Herpes Eye Infections: What is Herpes Keratitis? (American Academy of Ophthalmology) Also in Spanish
  • Peripheral Ulcerative Keratitis (Merck & Co., Inc.) Also in Spanish
  • What Is a Pinguecula and a Pterygium (Surfer's Eye)? (American Academy of Ophthalmology) Also in Spanish
  • What Is Bacterial Keratitis? (American Academy of Ophthalmology) Also in Spanish
  • What Is Fungal Keratitis? (American Academy of Ophthalmology) Also in Spanish

Genetics

  • Complete LCAT deficiency: MedlinePlus Genetics From the National Institutes of Health (National Library of Medicine)
  • Congenital stromal corneal dystrophy: MedlinePlus Genetics From the National Institutes of Health (National Library of Medicine)
  • Fish-eye disease: MedlinePlus Genetics From the National Institutes of Health (National Library of Medicine)
  • Fuchs endothelial dystrophy: MedlinePlus Genetics From the National Institutes of Health (National Library of Medicine)
  • Keratitis-ichthyosis-deafness syndrome: MedlinePlus Genetics From the National Institutes of Health (National Library of Medicine)
  • Keratoconus: MedlinePlus Genetics From the National Institutes of Health (National Library of Medicine)
  • Lattice corneal dystrophy type I: MedlinePlus Genetics From the National Institutes of Health (National Library of Medicine)
  • Lattice corneal dystrophy type II: MedlinePlus Genetics From the National Institutes of Health (National Library of Medicine)
  • Meesmann corneal dystrophy: MedlinePlus Genetics From the National Institutes of Health (National Library of Medicine)
  • Peters anomaly: MedlinePlus Genetics From the National Institutes of Health (National Library of Medicine)
  • Peters plus syndrome: MedlinePlus Genetics From the National Institutes of Health (National Library of Medicine)

Images

  • Corneal Abrasion (VisualDX)
  • Corneal Foreign Body (VisualDX)
  • Corneal transplant - series (Medical Encyclopedia) Also in Spanish

Statistics and Research

  • Eye Health Data and Statistics From the National Institutes of Health (National Eye Institute) Also in Spanish

Clinical Trials

  • ClinicalTrials.gov: Corneal Diseases From the National Institutes of Health (National Institutes of Health)
  • ClinicalTrials.gov: Corneal Injuries From the National Institutes of Health (National Institutes of Health)

Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)

  • Article: Characterising corneal changes in aniridia-related keratopathy using in vivo confocal microscopy...
  • Article: Exosomes as Future Therapeutic Tools and Targets for Corneal Diseases.
  • Article: DJ-1 Promotes Diabetic Corneal Epithelial Wound Healing by Attenuating Hyperglycemia-Induced Oxidative...
  • Corneal Disorders -- see more articles

Reference Desk

  • How the Eyes Work From the National Institutes of Health (National Eye Institute) Also in Spanish

Find an Expert

  • American Foundation for the Blind
  • Find an Ophthalmologist (American Academy of Ophthalmology) Also in Spanish
  • Finding an Eye Doctor From the National Institutes of Health (National Eye Institute)
  • National Eye Institute From the National Institutes of Health

Children

  • Corneal Abrasions (For Parents) (Nemours Foundation) Also in Spanish

Patient Handouts

  • Cloudy cornea (Medical Encyclopedia) Also in Spanish
  • Corneal injury (Medical Encyclopedia) Also in Spanish
  • Corneal transplant (Medical Encyclopedia) Also in Spanish
  • Corneal ulcers and infections (Medical Encyclopedia) Also in Spanish
  • Fuchs dystrophy (Medical Encyclopedia) Also in Spanish
  • Keratoconus (Medical Encyclopedia) Also in Spanish

Topic Image

Corneal Disorders

MEDICAL ENCYCLOPEDIA

  • Cloudy cornea
  • Corneal injury
  • Corneal transplant
  • Corneal transplant - discharge
  • Corneal transplant - series
  • Corneal ulcers and infections
  • Fluorescein eye stain
  • Fuchs dystrophy
  • Interstitial keratitis
  • Keratoconus

Related Health Topics

  • Eye Diseases
  • Eye Infections
  • Eye Injuries
  • Refractive Errors

National Institutes of Health

The primary NIH organization for research on Corneal Disorders is the National Eye Institute

Disclaimers

MedlinePlus links to health information from the National Institutes of Health and other federal government agencies. MedlinePlus also links to health information from non-government Web sites. See our disclaimer about external links and our quality guidelines.

The information on this site should not be used as a substitute for professional medical care or advice. Contact a health care provider if you have questions about your health.

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