Keratoconus is a progressive eye disease that causes a thinning of the cornea, the clear front surface of the eye. The cornea is normally a round dome shape, but in the case of keratoconus, it becomes shaped like a cone. This bulging effect causes a distortion of vision.
Keratoconus is usually a bilateral condition but one eye may progress faster than the other. Familial occurrence has been noted although most cases show no definitive inheritance pattern.
In many keratoconus worsens overtime. To retain vision and prevent its progression, corneal crosslinking can be performed.
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