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Cataract Surgery & Refractive Lens Surgery
A Question and Answer Book with Uday Devgan, MD, FACS

Table of Contents

How do you calculate what power lens to use?

This is one of my favorite subjects and I spend time perfecting my calculations. Since each eye is different, prior to the surgery, your eyes will be measured with specialized equipment using light-waves or ultra-sound in just a few minutes. Since cataract surgery is to correct cataracts, treating astigmatism or using premium lenses to reduce the need for glasses are considered separate procedures and incur separate costs.