Cataracts are the leading cause of poor vision in adults. The good news is cataracts can be successfully treated more than 95% of the time!
A cataract is the clouding of the lens inside your eye. In normal vision, light enters the eye, passing through the lens, and is focused on the retina at the back of the eye. When the lens is cloudy, the light is blocked, and the image that reaches the retina is cloudy and dull, creating poor vision. Glare and dull appearances of color are common complaints from people with cataracts.
The cataract is caused by a change in the chemical composition of the lens. The most common cause is the result of our natural aging process. Unfortunately, there is no way to prevent this age-related development. Cataracts can, however, occur at any age, and even rarely are present at birth. Cataracts can be the result of injury, infections or other eye diseases. Since vision loss is usually gradual as the cataract develops, you may not truly notice the decline in your vision until the cataract has progressed.