Keratoconus

What is keratoconus? Keratoconus is an eye condition affecting the cornea, which is the transparent surface of the eye. Keratoconus occurs when the cornea slowly changes shape. While the cornea is normally shaped like a dome, with keratoconus it thins and becomes shaped like a cone. This affects the way the eyes focus light and can distort vision. Keratoconus usually develops in younger people between about 16 and 30 and progresses until about the age of 40. It usually affects both eyes, though one eye may be worse than the other. If you notice any eye symptoms or changes to