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What is the role of the cornea in corneal opacities?

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The cornea is formed by strong, tough tissue composed of five different layers, each with a specific function. The cornea protects the eye from dust, germs, UV rays, and other foreign substances. Along with the lens, it bends light rays onto the retina so that images appear in focus. If the corneal shape is excessively steep, flat, or not completely round, it can cause nearsightedness, farsightedness, or astigmatism. These are called refractive errors. Certain types of corneal diseases can change the shape of the cornea.

SOURCES:

The Doctors of USC.com: "Corneal Opacity."

World Health Organization: "Corneal Opacities."

National Eye Institute: "Facts About the Cornea and Corneal Diseases."

Massachusetts Eye and Ear: "Cornea and Anterior Structures Diagnoses."

GetEyeSmart.org: "What Is Conjunctivitis?"

GetEyeSmart.org: "Contact Lens-Related Eye Infections."

GetEyeSmart.org: "What Is Herpes Keratitis?"

PubMedHealth: "Fuchs' Dystrophy."

Reviewed by Alan Kozarsky on January 14, 2018

SOURCES:

The Doctors of USC.com: "Corneal Opacity."

World Health Organization: "Corneal Opacities."

National Eye Institute: "Facts About the Cornea and Corneal Diseases."

Massachusetts Eye and Ear: "Cornea and Anterior Structures Diagnoses."

GetEyeSmart.org: "What Is Conjunctivitis?"

GetEyeSmart.org: "Contact Lens-Related Eye Infections."

GetEyeSmart.org: "What Is Herpes Keratitis?"

PubMedHealth: "Fuchs' Dystrophy."

Reviewed by Alan Kozarsky on January 14, 2018

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What are the symptoms of corneal damage?

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