원추각막에서의 콘택트렌즈 처방

Contact Lens in Keratoconus

Keratoconus is a noninflammatory disease of the cornea in which the cornea becomes progressively thinner, more distorted, and steeper in curvature. It is a chronic condition with a long duration that affects a patient’s quality of life. Spectacles are useful in the early stages of keratoconus, but with advanced keratoconus, spectacles play a very limited role and contact lenses become necessary for improving the vision and delaying the need for keratoplasty. The lens of choice is corneal RGP lens and if the patient develops discomfort or intolerance, then one can go in for soft toric lenses or scleral lenses. Though the fitting takes longer chair time, with the availability of newer materials and designs, it is possible to fit many keratoconic patients and improve the visual acuity.