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What causes the cornea to thicken?

The most common cause of a cornea that thickens over time is edema or swelling. Think of the cornea as a five-layered sandwich. The inner layer, the corneal endothelium, acts as a barrier to the water-like fluid inside the eye (aqueous humor) from entering the cornea and causing swelling of the cornea. We are all born with a given population of these protective cells. Their population decreases with aging, some eye diseases, and as a result of trauma.

Answered by: Wayne Bizer, DODr. Wayne Bizer

Categories: Eye Conditions

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Answered: May 20, 2013

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