Often people with cataracts begin to complain about glare. Colors may seem faded, and eyeglasses or contact lenses may need frequent changing. Ironically, people with cataracts may need increased light to read, and to lessen other vision problems. By the year 2020, there will be more than 12 million individuals in the 65 or older age group who will probably need treatment for cataracts, he noted. Besides age, other factors that scientists believe may put you at greater risk for developing a cataract include heredity, alcohol use, smoking, long-term exposure to high levels of the sun's ultraviolet rays, some medications and systemic disorders such as diabetes.
Cataract removal is the most common operation performed in the United States today.
Usually, a cataract needs to be removed only when it affects your vision so much that it interferes with your daily activities. NEI is conducting a nationwide clinical study called Age-Related Eye Disease Study. Scientists are examining, among other things, how cataracts develop and what factors put people at risk for developing them. The study is also looking at whether certain vitamins have any role in protecting the eye. Right now, there is no absolute evidence to support that idea.