KeratoconusKeratoconus is a progressive eye disease in which the normally round cornea thins and begins to bulge into a cone-like shape. This cone shape deflects light as it enters the eye on its way to the light-sensitive retina, causing distorted vision. Keratoconus can occur in one or both eyes and often begins during a person's teens or early 20s.
3 Blurred vision - even when wearing glasses and contact lenses
4 Glare at night
5 Light sensitivity
6 Frequent prescription changes in glasses and contact lenses
7 Eye rubbing
When vision deteriorates to the point that contact lenses no longer provide satisfactory vision, corneal transplant may be necessary to replace the diseased cornea with a healthy one.