Macular Degereration is actually the leading
cause of blindness in the US for those over 55 years of age. Cataracts remain
the leading cause of blindness worldwide, but in the USA Cataract surgery is
common and usually (barring no complications) restores vision well. Macular
Degeneration (AMD) on the other hand is an incurable eye disease that causes
the central portion of the retina to deteriorate. This central portion is
known as the macula, and with loss of vision in this area, your ability to
focus, read, drive a car, or see details of faces and objects will diminish.
Risk Factors:
AMD is most common in
older people, and with white women in particular. It appears to run in
families, and a link between two different genes and AMD seems to exist.
Studies have shown an increased risk with cigarette smoking, and obesity can
double the risk of severe AMD. Poorly controlled hypertension may also be a
risk factor, and some studies have suggested lighter eye color may increase
the risk.
Types of Macular
Degeneration (AMD):
Two basic types of AMD
exist, known as "Dry" AMD and "Wet" AMD. the vast majority(90%) of AMD is the
"dry" kind. It is usually the type of degeneration that is age-related and
there is no leakage of blood or serum into the central retina. Instead, there
are deposits of a yellow material know as drusen that form under the macula.
The macula then thins and dries out and does not function properly. This
causes central vision loss, the extent of vision loss depending on where and
how much drusen has been deposited. Most people over the age of 55 will have
some drusen deposits, but with aging and if the deposits grow there will be a
risk of vision loss from AMD.
The "wet" type of AMD accounts
for about 10 - 15% of all cases of AMD. This type is quite different and is
caused when abnormal blood vessels grow under the retina and macula. These
abnormal vessels to to leak fluid or blood distorting the macula and causing
loss of central vision. Although less common, this type of AMD can progress a
lot faster and be more severe.
Treatment:
There is no cure for
AMD. In 2000 a photodynamic laser therapy was approved for certain types of
"wet" AMD. This treatment helps slow the loss of vision. Not all types of wet
AMD are suitable for this theray, however, and studies for other forms of
therapy are underway.
Unfortunately there are no
approved treatmens for the dry form of AMD. A study from the National Eye
Institute has shown there is good evidence that certain nutrients, such as
Vitamin A (beta carotene), Vitamin C and E may help prevent or slow down the
progression of dry macular degeneration.
Nutrition As A
Prevention:
Many different
researchers and eyecare specialists believe that certain nutritional
supplements will help lower the risk of macular degeneration and slow down the
rate of progression if you have it. Fortunately, Unicity offers Vision
Essentials, a formula based on the National Institute of Health
Studies (AREDS I & AREDS II) with
Vitamin A, C, E, Zinc, Beta-carotenes, lutein, berry blend, and zeaxanthin in
it's advance eye care formula. Vision Essentials is replacing VISUtein and
Vision Complete, as it has a formulation based on the latest scientific
studies.
Why take the risk of developing
AMD. Why not do what we can to prevent AMD, and if you have it, do what you
can to slow further progression. Clinical studies have shown that patients
taking VISUtein over a period of time showed good improvements in their vision
as measured by visual acuity, recovery time after a light flash, and contrast
sensitivity. In fact, the VISUtein results were even better when compared
against another well known product. VISUtein is a well balanced formula for
the support of healthy eyes and vision.