Keratoconus (conical cornea) is an recessive inherited condition usually apparent between the ages of 10-25yrs. Incidence of the condition is approximately 1 in 5,000. The condition manifests as a thinning of the corneal apex, or central area of the cornea. With the weakening of the tissue there is a bulging of the tissue which increases the myopia of the affected eye. Initial correction is via spectacles whereby reasonable vision can be attained. Subsequent treatment is via a rigid contact lens which will provide a new front surface to the optical system of the eye.