Alpins N, Stamatelatos G (April 2007). "Tailored photoastigmatic refractive keratectomy using blended topographic and refractive data for myopia and astigmatism in eyes with forme fruste and gentle keratoconus". Curvature of the Cornea: The lens on the front within your eye wants to keep up a completely spherical form to refract https://wekurehealth.com/aesthetic-treatments/