Eye Diseases
Cataracts
A cataract is a clouding of all or part of the normally clear
lens within your eye, which results in blurred or distorted
vision. Cataracts are most often found in persons over age
55, but they are also occasionally found in younger people.
Excessive exposure to ultraviolet radiation in sunlight,
cigarette smoking or the use of certain medications are
also risk factors
for the development of cataracts.
Although cataracts develop without pain or discomfort, there
are some indications that a cataract may be forming. These
include blurred or hazy vision, the appearance of spots
in front of the eyes, increased sensitivity to glare or
the
feeling of having a film over the eyes. A temporary improvement
in
near vision may also indicate formation of a cataract.
To read more, click
here.
Diabetic Retinopathy
Diabetes is a disease that interferes with the body's ability
to use and store sugar and can cause many health problems.
One, called diabetic retinopathy, can weaken and cause changes
in the small blood vessels that nourish your eye's retina.
The early stages of diabetic
retinopathy may cause blurred vision, or they may produce no
visual symptoms at all. As
the disease progresses, you may notice a cloudiness of
vision,
blind spots or floaters.
If left untreated, diabetic retinopathy can
cause blindness, which is one reason why it is important to
have your eyes
examined regularly by your doctor of optometry. This is
especially true
if you are a diabetic or if you have a family history of
diabetes.
Early treatment is important because once
damage has occurred, the effects are usually permanent.
If you or a member of your family has not
received a dilated eye examination in the past year, you should
contact your
optometrist for an appointment. To read more, click
here.
Glaucoma
Glaucoma is an eye disease in which the internal pressure in
your eyes increases enough to damage the nerve fibers in
your optic nerve and cause vision loss.
Glaucoma is one of the leading causes of
blindness in Canada. It most often occurs in people over age
40.
The most common type of glaucoma develops
gradually and painlessly, without symptoms.
Glaucoma cannot be prevented,
but if diagnosed and treated early, it can be controlled. Vision
lost to glaucoma cannot
be restored. That is why the Canadian Optometric Association
recommends annual eye examinations for people at risk for
glaucoma. A comprehensive optometric examination will include
a tonometry
test to measure the pressure in your eyes; an examination
of the inside of your eyes and optic nerves; and a visual
field
test to check for changes in central and side vision.
To read
more, click
here.
Macular Degeneration
Macular degeneration is the leading cause of blindness in Canada.
It results from changes to the macula, a portion of the retina
that is responsible for clear, sharp vision and is located
at the back of the eye.
Some common symptoms are a gradual loss of
ability to see objects clearly, distorted vision, a gradual
loss of color vision and
a dark or empty area appearing in the center of vision.
If you experience any of these, contact your
doctor of optometry immediately for a comprehensive examination.
After age 60, an annual, comprehensive eye
examination is an important to maintain eye health. To read more, click
here.
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