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Eyes: The Windows to Your Health | National Geographic


you may have heard the saying that the
eye is a window to the soul
well as optimal just we believe the eye
is a window to the body
it’s a window to what we call systemic
disorders like diabetes or high blood
pressure and we can see signs of these
when we look at the eye when you study
heart disease for example you’ll listen
to the heart but with the eye you
actually look at it with a microscope
you can actually see brain tissue which
is the retina and you can see blood
vessels and if you look carefully you
can actually even see red blood cells as
a zip through the capillaries
over one third of all known genetic
syndromes involve the eye we can see
signs of nutritional deficits nerve
damage in the back of the eye in vitamin
b-complex deficiencies stress is another
big one and it can cause the cells
behind the eye to start leaking fluid
it’s like having a blister in the rectum
and you can see it here this yellowed
area here we’re looking at the normal
retina through our slit-lamp
bio microscope you can see the orange
color of the retina you can see the
blood vessels the course over the retina
you can also see the nerve that connects
the back of the eye to the brain
this patient has a really interesting
finding in the iris we call these
posterior cine kiai these little brown
spots are adhesions between the iris and
the lens they’re signs of inflammation
which can often indicate inflammation
that’s occurring or occurred in the body
itself in this patient we have a little
microscopic spot of blood on the white
part of the eye this little spot of
blood is indicative of one of several
different things six out of ten times
it’s caused by high blood pressure
this patient is a diabetic and he has
these small blood vessel changes in his
retina and so when we find this we know
that this patient needs to take extra
care to control his or her health so
these indicators can often be seen in
the eye before they can be seen anywhere
else really the eye is such an important
window to our bodies and our health
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