CataractWhat _____ cataracts (to be) ______________?
A cataract (to be) _____a clouding of the lens in the eye. This (to prevent) ____________ light from passing through the lens and reaching the back of the eye, interfering with vision. Cataracts most commonly (to develop) _________ as people (to get) ______ older. These (to call) _____________ age-related cataracts. Congenital cataracts (to be) _______ present from birth and (to be) _______ usually the result of exposure to infection, radiation or drugs before birth, or because of a genetic problem. Other causes of cataracts (to include) _______________ illnesses such as diabetes, certain drug treatments, long-standing inflammation and injury.
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A cataract (to be) ______ a clouding of the lens in the eye 
