A cataract forms when the lens in the front of the eye becomes cloudy. This lens functions to focus light onto the retina (the light sensitive tissue in the eye), much like the lens in a camera. When it becomes cloudy, the result is a decrease in vision. There is no pain associated with the condition, but there are other symptoms, including:
Most people develop cataracts as a result of aging, with the majority of cases occurring in people over the age of 55. Once symptoms develop, the treatment of choice is cataract surgery to remove the cloudy lens and replace it with a new, clear lens, thus restoring good vision.
For more detailed information, click here: Cataract Surgery