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Macular Degeneration
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The macula is the central portion of the retina that is responsible
for our sharpest vision, allowing us to read fine print or
perform intricate handwork like stitching or sewing.
As we age, the cells of the macula and retina begin to break
down and can no longer send normal signals of light throught
the optic nerve to the brain. The result is blurred vision,
often an early sign of a condition known as macular degeneration.
The major cause of severe vision loss in people over 60 macular
degeneration comes in two forms:
Dry form - In the mild dry form, aging spots appear
in the macula and vision slowly deteriorates. The damage can
vary greatly, however, because some people can have the condition
for years and still have fairlly good vision.
Rollover
to see how a
person with age-related
macular degeneration
views the world...
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Wet form - In the more severe wet form, abnormal blood
cells grow under the retina and macula, a condition known
as angiogenesis. As these blood vessels bleed or leak, central
vision becomes distorted and vision loss is usually rapid
and severe. Patients usually report a dark spot in their central
line of vision and, because the macula is no longer smooth
and straight, straight lines appear wavy.
Up until quite recently, there was little that could be done
for the majority of patients with for the most severe form
of macular degeneration. New drugs, however, are now available
that check the growth of abnormal blood vessels and can actually
reverse the effects of macular degeneration.
These new drugs, usually injected directly into the eye,
include Lucentis (ranibizumab), Avastin (bevacizumab) and
Macugen (pegaptanib).
Elsewhere on the Web, find out more about the disease with
additional facts & information on its symptoms, risk factors,
alternative therapies and new treatments giving new hope to
those living with macular degeneration ....
Macular
degeneration - Excellent guide from the Mayo Clinic
with a brief overview and detailed information on signs &
symptoms, causes, risk factors, when to seek medical advice,
diagnosis, treatments including new drugs and traditional
surgical procedures plus more on complementary & alternative
remedies.
Macular
Degeneration Network - Comprehensive large-type patient
information including guides to wet vs. dry AMD, current drug
treatments & surgical procedures, nutrition and other
preventative measures, FAQ, glossary of terms.
Macular
Degeneration Drug Adds Vision - 2006 news story on
a New England Journal of Medicine report on clinical outcomes
for two new drugs, Lucentis and Avastin, and their benefits
in treating age-related macular degeneration, with information
on typical costs for treatment.
Macular
Degeneration Partnership : Nutrition - Extensive overview
of alternative therapies suggested by research studies showing
benefits of antioxidants vitamins E, C, and A,
lutein and zeaxanthin, with a related table of good food sources,
recipes, plus other tips and advice for decreasing risk.
AMD
and Depression - Good discussion on symptoms of depression
found in patients with age-related macular degeneration, how
it can be treated, plus information on practical ways to cope
and find support, with personal accounts of others who have
dealt with the disease.
This
information is intended as reference and not as medical advice.
All treatment decisions should be made by medical professionals.
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