Cataracts: A cataract (KA-ter-act) is a cloud over the lens of your eye, which is usually clear. The lens focuses light onto the retina. A cataract makes ... more about Cataracts.
Cataracts: Cloudy areas on the eye's cornea interfering with vision. More detailed information about the symptoms, causes, and treatments of Cataracts is available below.
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The US based website ClinicalTrials.gov lists information on both federally and privately supported clinical trials using human volunteers.
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A cataract (KA-ter-act) is a cloud over the lens of your eye, which is usually clear. The lens focuses light onto the retina. A cataract makes everything you look at seem cloudy. (Source: excerpt from Keep your eyes healthy: NIDDK)
Cataracts are common among older people. Cataracts are cloudy areas in part or all of the eye lens. The lens is usually clear and lets light through. Cataracts keep light from easily passing through the lens, and this causes loss of eyesight. Cataracts often form slowly and cause no pain, redness, or tearing in the eye. If a cataract becomes large or thick, it usually can be removed by surgery. (Source: excerpt from Aging - Women Getting Older: NWHIC)
Cataracts are cloudy areas in part or all of the eye lens. The lens is usually clear and lets light through. Cataracts keep light from easily passing through the lens, and this causes loss of eyesight. Cataracts often form slowly and cause no pain, redness, or tearing in the eye. Some stay small and don’t change eyesight very much. If a cataract becomes large or thick, it usually can be removed by surgery. (Source: excerpt from Aging and Your Eyes - Age Page - Health Information: NIA)
Partial or complete opacity of the crystalline lens of one or both eyes that decreases visual acuity and eventually results in blindness. Some cataracts appear in infancy or in childhood, but most develop in older individuals. (Diagnostic Surgical Pathology, 3rd ed.) --2003 - (Source - Diseases Database)
Clouding of the natural lens of the eye - (Source - WordNet 2.1)
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