Diabetes: Two Steps
You Must Take to Avoid Vision Loss
Back in the 1950's and 60's most people didn't rate diabetes
as a major problem. Back then, all the focus was on dealing
with more prominent diseases such as polio and tuberculosis.
If diabetes was thought about, it was more in the context
of cutting out sugar in your coffee, rather than as a serious
threat to your eyesight or your life.
That's all changing. It's not too much to say that diabetes
is now reaching epidemic levels in most of the western world.
According to the American Diabetes Association there are over
20 million diabetics in the United States alone, with a staggering
one third undiagnosed. It's also going to get a lot worse
with another 41 million Americans already showing pre-diabetic
signs.
Diabetes is a disease that mostly affects blood vessels and
in it's extreme forms can lead to serious heart disease, stroke
and kidney damage. Clearly these life threatening diabetic
vascular diseases deserve priority attention, but high on
the critical list for diabetics is the risk of serious eye
disease and loss of vision.
Vision is one of our most critical senses and in this "need
for speed" information era, over 70% of our sensory information
comes through our eyes. According to the American Academy
of Ophthalmology, diabetics are 25 times more likely to lose
vision than those who are not diabetic. With diabetes already
being the number one cause of blindness in the United States,
it's no wonder eye care professionals are predicting a devastating
increase in vision loss as the diabetic epidemic grows alarmingly.
Newly diagnosed diabetics often have nothing more than minor
vision fluctuations which settle when blood sugar levels improve
with treatment. Early on it's easy to believe everything is
fine. After some years though, continuing high blood sugar
can gradually damage the blood vessels at the back of the
eye in the retina. This causes a problem called diabetic retinopathy
and the longer you have diabetes the more likely you are to
have retinopathy. The risk increases further when there is
poor control of blood sugar levels. More than 70% of diabetics
develop some changes in their eyes within 15 years of diagnosis.
Retinopathy is graded as Non-proliferative or Proliferative.
Non-proliferative retinopathy is the common milder form, where
small retinal blood vessels break and leak. There may be some
mild retinal swelling but it rarely requires treatment unless
it causes hazy central vision or straight lines appear bent.
Proliferative retinopathy is the less common, but more serious
form where new blood vessels grow abnormally within the retina.
If these vessel scar or bleed they can lead to potentially
serious vision loss including blindness. Early laser treatment
can seal leaking vessels and slow the progress of diabetic
retinopathy, but can't reverse existing vision loss.
For now, there is no "magic pill" to eliminate
the risk of diabetic eye damage, but you can do two important
things to help prevent the more serious complications. Poor
blood sugar control is one of the main causes of serious diabetic
retinopathy. The critical first step is making sure you stabilize
and control your blood sugar with a healthy diet and regular
exercise. The second step is to make sure you have a yearly
diabetic eye examination. An experienced eye care professional
can pick up subtle diabetic eye changes long before you notice
any vision change, and more importantly, early enough to do
some good.
If you, or your family are affected by this rising tidal
wave of diabetes: take action now to reduce your risk of vision
loss. Don't be a victim!
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