Cataract
A cataract is a cloudy area in the lens of your eye (the clear part of the eye that helps to focus light). Cataracts are very common as you get older. In fact, more than half of all Americans age 80 or older either have cataracts or have had surgery to get rid of cataracts.
Most cataracts develop slowly and don’t disturb eyesight early on. But with time, cataracts will eventually affect vision. At first, stronger lighting and eyeglasses can help deal with cataracts. But if impaired vision affects usual activities, cataract surgery might be needed.
When a cataract interferes with someone’s usual activities, the cloudy lens can be replaced with a clear, artificial lens. This is generally a safe, outpatient procedure.