Keratoconus | Innova ocular

Vision problems > Keratoconus


What is keratoconus?

Keratoconus is a corneal disease that causes progressive degeneration of the cornea. It generally occurs in both eyes at the same time and as it progresses the cornea takes on an irregular conical shape due to internal changes in the corneal tissue in the form of thinning of the central and paracentral area of the corneal structure. High irregular astigmatism can also occur together with this vision problem.

The causes of keratoconus are as yet unknown. Genetics plays an important part, as 10% of people with keratoconus have a relative with this disease.


Keratoconus generally affects both eyes, although the symptoms may vary from one eye to the other. The symptoms of this vision problem usually begin during adolescence or around the age of 20 and they can include blurred vision, slight visual distortion, increased light sensitivity, glare, eye irritation, increased myopia, frequent changes in eyeglass prescription and inability to wear contact lenses.

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The first symptoms usually appear during puberty or early adolescence up to the age of 30 or 40, and after that age it usually stops progressing.

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