Cataracts are cloudings on the pupils lens, which lies behind the iris and the pupil. The lens works much like a camera lens, focusing light onto the retina at the back of the eye. It is the lens that focuses allowing the eyes to see.
Water and proteing pretty much make up the bulk of the lens. The protein is arranged in a precise way that keeps the lens clear and lets light pass through it. As we get older, some of the proteins start to clump a...
