About This Condition ( Keratoconus )
What is Keratoconus?
Keratoconus is an eye condition in which the normally round dome-shaped clear window of the eye (cornea) progressively thins causing a cone-shaped bulge to develop. Exactly why this happens is unknown, but genetic factors play a role and it is more common in people with allergic diseases such as asthma, in Down’s syndrome and in some disorders of connective tissue such as Marfan’s disease. This disorder is usually bilateral, with onset at the age of 10-14 years. Affects both sexes, with a slight female preponderance. Although it has been reported in families, the risk of inheritance is reasonably low.
TREATMENT FOR KERATOCONUS:
This is a new modality of treatment for keratoconus, where in Riboflavin eye drops are applied followed by exposure of the cornea to ultraviolet radiation for a duration of 30 minutes. This results in cross linking of the collagen fibres of the cornea, thereby increasing its physical strength by upto 300%. Thus further progression of keratoconus can be arrested, and in 15 -20% cases regression has also been noted. Longest followup duration following this treatment is for 7 years