Vision Impairment

Posted by Tn
8
Sep 26, 2007
800 Views
Vision impairment means that a person's eyesight cannot be corrected to a "normal" level.  Vision impairment may be caused by a loss of visual acuity, where the eye does not see objects as clearly as usual.  It may also be caused by a loss of visual field, where the eye cannot see as wide an area as usual without moving the eyes or turning the head.
Vision impairment can be caused by damage to the eye itself that affects its ability to receive or process visual information.  Impairment can also be due to the eye being shaped incorrectly, which can make it harder to focus on things.  Vision impairment can also occur if the brain does not process visual information correctly.  Vision impairment can occur anytime during a person's life, even before birth.
The most common causes of vision impairment among adults in the United States are diabetic retinopathy, age-related macular degeneration, cataracts, and glaucoma.  Diabetic retinopathy is a common complication of diabetes in which the blood vessels in the retina break down, leak, or become blocked, leading to vision impairment.  Age-related macular degeneration affects the part of the retina that is responsible for sharp central vision.  Cataracts are a clouding of the eye's lens, which is normally clear.  Glaucoma is increased fluid and pressure within the eye that leads to enlargement of the eyeball.  The risk of vision loss from many of these conditions can often be reduced if the condition is found early and treated.
 there are many tools in which to learn to get around in life with Vision Impairment . There are talking clocks,cellphones, text readers such as  the Jaws reader Program that reads Text  to you as you search the internet.
http://www.freedomscientific.com/fs_products/software_jaws.asp

 I Use the Jaws reader program myself and have  for many years.
Also there are seeing  eyes Dogs available to help oneself to get along out  and around town .
http://www.guidingeyes.org/site/PageServer

 there are sites on the internet that provide audio books , so that we may enjoy books by listening.
 here is some help pages i use i hope this can be some help to those with vision problems
http://www.enablemart.com/

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Laura Elrod
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James Morgan
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