| − | A '''cataract''' is a clouding of the lens in the [[eye]]. Cataracts are very common in older people. By age 80, more than half of all people in the United States either have a cataract or have had cataract surgery.{[fact}} | + | A '''cataract''' is a clouding of the lens in the [[eye]]. Cataracts are very common in older people. By age 80, more than half of all people in the United States either have a cataract or have had cataract surgery.{{fact}} |