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Keratoconus, commonly called KC, is an eye condition which affects the cornea; the transparent window of the eye. It normally affects both eyes but usually one eye progresses faster than the other. Keratoconus progressively thins the cornea causing a cone-shaped bulge which distorts vision. The cause of Keratoconus is unknown and there is no known cure. The level of distortion depends on the progression of the disease. In its early stages, it is possible for Keratoconus to go undetected and be corrected with glasses. As the astigmatism worsens, due to the increased thinning, glasses no longer give adequate correction. At this stage, specially fitted rigid gas permeable (RGP) contact lenses are required, which acts with the tear film, create an artificial corneal surface smoothing out the irregularities of the cornea. As a general guide Keratoconus can progress for 10 to 20 years. In a small percentage of people Keratoconus progresses to the point where contact lenses no longer correct vision. At this stage a corneal transplant is considered.

At present, there is no medical technique which can give an accurate prognosis as to when Keratoconus might stop progressing. The length of progression and severity of Keratoconus can vary from person to person.

It is important to note that although there is no cure for Keratoconus; people with Keratoconus do not go blind or suffer with severely reduced vision all their life. The majority, with the help of treatment options, are able to obtain good visual acuity without needing to give up their existing jobs or future ambitions; even in cases of advanced and aggressive progression.

Keratoconus is a disease that can be managed and many people with Keratoconus live normal lives and hold down normal jobs. Having Keratoconus does not automatically mean the end of your current way of life or future ambitions.

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