Keratoconus: A Short Review
Keratoconus is a progressive condition, usually presenting bilaterally, that affects the cornea. It leads to the thinning and bulging of the cornea which eventually causes the cornea to become cone shaped. It has a detrimental impact on the patient’s vision. The word keratoconus is derived from Greek and it means ‘cone-shaped’ cornea, with John Nottingham widely acknowledged as the first to define the condition in 1854. Studies that have investigated its epidemiology have estimated prevalence at between 1.5 and 25 per 100,000 people per year, however there is huge variance due to reasons such as geographical location, ethnicity and the diagnostic criteria used to identify keratoconus.