What is a cataract?
Are there other types of cataracts?
The same scene as viewed
by a person with cataract
Vision decrease from early cataract may be improved with new eyeglasses, brighter lighting, anti-glare sunglasses, or magnifying lenses. If these measures do not help, surgery is the only effective treatment. Surgery involves removing the cloudy lens and replacing it with an artificial lens/ implant.
A cataract needs to be removed only when vision loss interferes with your everyday activities, such as driving, reading, or watching TV. You and your eye care professional can make this decision together.
Sometimes a cataract should be removed even if it does not cause problems with your vision. For example, a cataract should be removed if it prevents examination or treatment of another eye problem, such as age-related macular degeneration or diabetic retinopathy.
This online resource guide provides information about cataracts. It answers questions about causes and symptoms, and discusses diagnosis and types of treatment. It was adapted from Don't Lose Sight of Cataract (NIH Publication No. 94-3463) and Cataract: What You Should Know (NIH Publication No. 03-201).
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