Alpins N, Stamatelatos G (April 2007). "Customized photoastigmatic refractive keratectomy employing merged topographic and refractive data for myopia and astigmatism in eyes with forme fruste and mild keratoconus". Curvature of your Cornea: The lens within the front within your eye needs to keep up a wholly spherical condition to refract https://wekurehealth.com/blog/advanced-cataract-surgery-gurgaon/