Normal Vision

The natural lens in your eye, which is responsible for focusing an image as it enters your eye, is normally crystal clear. When light enters the eye, it passes through the lens and is focused on the retina at the back of the eye. The retina then transmits the focused image to the brain.

What is a Cataract?

A cataract is a clouding and hardening of the eye’s natural lens. This blocks the passage of light through the eye. As a result, the image that reaches the retina and is sent to the brain is clouded, resulting in poor vision.

What causes a Cataract?

A cataract is caused by a change in the chemical composition of the lens. The most common cause for this change is the natural aging process. As we mature, the normally flexible, clear material of the lens becomes hard and cloudy. Unfortunately, there is no way to prevent the development of cataracts. Everyone who lives long enough will eventually develop the problem.

Although most commonly seen in adults over the age of 60, cataracts can occur at any age. The condition may be present at birth or caused by an injury to the eye. Infections and other eye diseases, such as glaucoma and eye tumors, may cause the development of a cataract. Vision loss is often gradual as a cataract develops, so many people don’t realize that they’re seeing poorly.