About Vision > Normal Vision > What is Nearsightedness? > What is Farsightedness? > What is Astigmatism? > Eye Disorders and Diseases > Cataracts > Children's Vision

Much like the lens of a camera focusing light on film, the lens of your eye focuses light on the back of your eye, or retina. If this lens becomes dirty or fogged, then the picture taken by the camera will be hazy or blurred. A cataract has a similar affect when it forms in a person's eye. Since a cataract is the clouding of the natural clear lens of the eye, it blurs the light images sent to the back of the eye, or retina. Cataracts are normally caused by the natural aging of  the eye. In fact, it is estimated that over 60% of the population over the age of 60 may suffer from cataracts. Fortunately, cataract treatment has become one of the most common and successful surgical procedures performed in medicine today.