Alpins N, Stamatelatos G (April 2007). "Custom Made photoastigmatic refractive keratectomy using blended topographic and refractive data for myopia and astigmatism in eyes with forme fruste and delicate keratoconus". Rays of light can bend if they go through water or maybe a cornea like the apparent entrance surface area of https://wekurehealth.com/blog/advanced-cataract-surgery-gurgaon/