Evolution of Cataract Surgery

Abstract

Cataract is a condition of clouding of the natural lens that resides within the eye. Its normal function is to focus the incident light beams entering the eye through the cornea onto the fovea of the retina, where specialised photoreceptors reside and, through geometric isomerisation of the retinal chromophore, send information about the incident light intensity and frequency to the brain for further processing. When the lens clouds, the incoming light is both decreased in intensity and distorted leading to the distorted perception of the external world by the patient.

Topics & Concepts