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EyeCare
America® Glaucoma Project
Did
you know... that you could be at risk for glaucoma, a disease that
has almost no early symptoms, but could result in vision loss or
even blindness? Glaucoma is one of the leading causes of blindness
in the United States and the most common cause of blindness among
African Americans. Although glaucoma is a dangerous eye disease,
vision loss from glaucoma can usually be prevented, reduced or delayed
if it is diagnosed early and treated appropriately.
What
Causes Glaucoma?
Clear liquid, called the aqueous humor, flows in and out of the
eye. This liquid is not part of the tears on the outer surface of
the eye. You can think of the flow of aqueous fluid as a sink with
the faucet turned on all the time. If the "drainpipe" gets clogged,
water collects in the sink and pressure builds up. If the drainage
area of the eye -- called the drainage angle -- is blocked, the
fluid pressure within the eye may increase and can damage the optic
nerve, the nerve that carries the images we see to the brain. Even
though the increased pressure usually does not cause pain, or other
symptoms, Glaucoma can damage the optic nerve fibers, causing blind
spots to develop. If the entire nerve is destroyed, blindness results.
Who
gets glaucoma?
Glaucoma is one of the leading causes of preventable blindness in
the world, and affects over three million people in the United States
alone, and half of them don't even know they have this disease.
High pressure alone does not mean that you have glaucoma. Your ophthalmologist
puts together many kinds of information to determine your risk for
developing the disease. Family history of glaucoma is a major risk
factor. Although glaucoma can occur in people of all ages, it is
primarily a disease that affects older adults. In addition to family
history and older age, race is an important risk factor for glaucoma.
It occurs four to eight times more often among African Americans
than Caucasians, and often occurs earlier in life. Additional risk
factors to glaucoma are if you are diabetic, very near sighted,
or have used steroids for a long period of time.
How
often should I have an eye exam?
The Virginia Society of Ophthalmology recommends you have an eye
examination every three to five years if you are age 40 or over,
and every one to two years if:
- a family
member has glaucoma
- you are
age 50 or over
- you are
of African ancestry
- you have
diabetes, have had a serious eye injury in the past, and/or you
are taking steroid medication
How
is glaucoma detected?
Because glaucoma typically does not cause noticeable vision problems,
one of the best ways to prevent vision loss is by having an examination
by an EyeMD for glaucoma which may include:
- questions
about your family's medical and eye history
- measurement
of intraocular pressure (Remember, high pressure alone does not
mean that you have glaucoma)
- examination
of the optic nerve (which may require pupil dilation).
- examination
of the drainage angle
How
is glaucoma treated?
Glaucoma cannot be cured, but it can be controlled with proper medical
treatment. Unfortunately, vision that has been lost due to glaucoma
cannot be restored. Treatment includes the use of medications in
the form of eye drops or pills, designed to reduce the pressure
by slowing the flow of fluid into the eye or by helping to improve
fluid drainage. Surgery (laser or incisional) may be recommended,
however this is usually reserved for patients whose pressure cannot
be controlled with medication. However, with the introduction of
new kinds of technology and medications that have fewer side effects,
pressures can be better controlled and help prevent vision loss.
Are
you at RISK for Glaucoma?
Score yourself below to see:
1.
Family History (Choose one)
No known
glaucoma in family -- 0
Parent
or child has glaucoma -- 2
Brother
or sister has glaucoma -- 4
Parents
& brother or sister -- 4
2.
Race/Ethnicity (Choose one)
White/Caucasian
-- 0
Hispanic
-- 1
Black/African Descent -- 3
3.
Age (Choose one)
< 40 -- 0
40-49 -- 1
50-59 -- 2
60 + -- 3
Add
up the scores in each of the above three categories. If you have
a total score of 4 or higher, you are at increased risk for
glaucoma and should get an eye exam.
The
EyeCare America ®
-- Glaucoma Project is a public service project of the Foundation
of the American Academy of Ophthalmology, co-sponsored by Pharmacia
Corporation, and endorsed by the Virginia Society of Ophthalmology
(VSO). Virginia is the pilot state for the project. The EyeCare
America ®
-- Glaucoma Project encourages early detection and treatment by
promoting awareness of glaucoma risk factors and providing access
to care for qualified individuals at increased risk.
Glaucoma
should not be a well-kept family secret. The Virginia Society of
Ophthalmology recommends a regular glaucoma eye exam with an EyeMD.
For those uninsured, a glaucoma exam and initiation of treatment
will be provided at no cost. If you have questions or would like
a referral to an EyeMD, please contact EyeCare America ®
at 800-391-EYES (3937).
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