Keratoconus is a progressive eye disease in which the cornea thins out abnormally, causing a cone-like shape bulge. The irregular shape of the cornea causes irregular astigmatism to develop which results in:
- Distorted image
- Blurred vision
- Increased sensitivity to light
In the early stages, spectacles or soft contact lenses may be used to correct vision. As the cornea thins and becomes steeper, rigid gas permeable (RGP) or specialty (Keratoconus) contact lenses are prescribed to achieve better vision. The contact lenses prescribed must be fitted properly, and follow up checkups and frequent lens changes may be needed to achieve and maintain good vision.
Corneal crosslinking is also another option to control the progression of keratoconus. In advanced cases, a corneal transplant (surgical procedure that replaces the keratoconus cornea with healthy donor tissue) may be necessary.