Since
Macular Degeneration is painless and can cause very subtle
changes in vision, getting regular exams from an eye care
professional is the only way it can be diagnosed. One of
the earliest changes seen in Macular Degeneration is
distortion of straight lines. This is a serious change
and should be evaluated by your eye care professional
immediately. It's important to schedule regular eye
exams at least once a year and to see your doctor immediately
if you notice any change in your vision. When you make
an appointment to see your eye care professional, ask if they
test for Macular Degeneration.
If drusen or
other early signs of Dry Macular Degeneration are present,
your doctor may ask you to use an Amsler Grid to monitor your
vision. The Amsler Grid is a simple test that can
effectively identify changes in your vision. To get and
idea of how it works, take a look at the Amsler Grid examples
on the right.
It is important
to understand that Dry Macular Degeneration can convert to Wet
Macular Degeneration. A person with advanced or Wet
Macular Degeneration may see distortions in the grid pattern,
such as bent and irregular lines, an/or gray, shaded
areas. If changes on the Amsler Grid are seen, it's time
to seek examination immediately.
To be
effective, follow your eye care professional's instruction on
how to correctly use the Amsler Grid.
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Fluorescein
angiography
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If
your doctor suspects Wet Macular Degeneration, a specialized
test called fluorescein angiography (FA) may be done. To
do this test, a special dye call fluorescein is injected into a
vein in the arm. This dye will travel throughout the body,
including the eyes, Black and white photos are taken of the back
of the eye. If an abnormal blood vessel is present, it
will fill with the dye and can be seen on the photos. Your
doctor will use this test to guide treatment; therefore, it may
need to be repeated before any future treatments. Your
doctor may also take color photographs of your retina for
comparison at future visits. |
It is important
to remember that even in severe cases of Macular Degeneration,
patients do not lose their peripheral vision. These
patients often learn to use their peripheral vision to look
slightly off-center to make out details. There are also
special vision aids that can assist people with severe
vision loss. Your eye care professional can help. |
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Normal
fluorescein angiography of
the macula |
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