We are all born with a natural crystalline lens in each of our eyes which, like a lens in a camera, helps focus light.
As we age and as a result of certain diseases (like diabetes
), our lenses may opacify, blocking light entry. In cataract surgery
, the lens is broken up with an ultrasonic probe and removed with an aspiration device. Then, a synthetic lens made of clear acrylic or silicon is placed in the position of the original lens, replacing it. The result is a new, clear lens to focus light in place of the old, opacified one.