Cars

Brenda Deckman Practicum Assignment #2 March 9th 2004 Human Aging Diseases and Disabilities clay System: sensorial/VisualOrgan: Eyes Disease/Dis king: Cataracts definition: A Cataract is a overcast of the crystalline electron lens of the hearte of the inwardness that prevents assort passage of open through the lens. The size and density of the cataract rout out neuter greatly, so the government issue on vision go away also vary greatly. The closer the cataract is to the center of the pupil the to a greater finale the vision will be impaired. The more to the side of the lens the clouding is, the less severe the presages will be. Often the clouding is fairly equal thr oughout the lens. Symptoms: The most common predict of a cataract is blurred vision. It is most noticeable when driving a car or reading. The vision may be cloudy, complain or fuzzy. Because the lens is not crystal clear the mail entering the eye is scattered. This makes focusing on the retina difficult.

Sometimes a person with a cataract sees double. This is experienced when trying to focus on a distant object such as a traffic sign. Glare is also a mark of a cataract. A person may see halos around lights at night which can make driving difficult, and b obligation fair weather can also be very irritating. Depth perception, the office to judge distance may al so be affected. right depth perception re! quires the use of both eyes, and since a cataract unremarkably develops in one eye at a time, a person may favor the better eye. When one eye is favored the eyes are not working unitedly which in turn affects depth perception. Changes in the way tinge are seen can also be a symptom of a cataract. It may seem as if the world has been multicolored gray. Certain shades of blue are distorted and interchange seem faded. When the cataract is removed colors once again appear...If you check to get a full essay, order it on our website: OrderEssay.net

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