What is Keratoconus?
Keratoconus is a condition in which the cornea (the clear front “window” of the eye) becomes weakened and develops an irregular shape. It generally affects both eyes although one eye may be much more affected than the other.

The cornea does most of the eye’s focusing - therefore irregularity of its shape causes blurring of vision. As this progresses, glasses become less effective at improving vision.

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This page was last updated at 1:31PM on July 29, 2021.