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Cataracts
occur as part of the normal aging process. Studies show that virtually
everyone over age 65 has some cataract formation in their eyes!
Cataracts can severely reduce your vision. At one time, cataracts
were a leading cause of blindness in the world. But today, fortunately
they can be treated. Modern surgical techniques, intraocular lens
implantation and "same day surgery" make cataract surgery
safe, fast and effective.
A cataract occurs when the normally clear lens of the eye becomes
cloudy. As the cataract develops, the cloudiness no longer allows
the lens to properly focus light on the back of the eye. This
unfocused light causes the vision to look blurry or hazy. Development
of cataracts has been associated with exposure to ultraviolet
radiation. They are particularly prevalent in persons who spend
a lot of time in the sun, such as fisherman. There is nothing
you can do to prevent the formation of cataracts.
Cataract treatment is advised when decreased vision affects your
everyday activities or hobbies. To determine how much your vision
is decreased, your eye doctor should test you with a new test
called “contrast sensitivity.” This test determines
how much your everyday vision has been affected by the cataract.
Cataract surgery, in which the normal cloudy lens is removed,
is now a very successful procedure. The most widely used technique
is called phacoemulsification. A very small incision is made and
a tiny ultrasonic probe is used to break up the cataract and gently
suction it away. A clear membrane is left in your eye where an
intraocular lens is placed (IOL). This IOL is necessary to replace
the focusing power of the natural lens, which was removed. With
insertion of an IOL, there is little need for thick cataract glasses
and contact lenses that were used years ago.
Small incision surgery has several benefits. The procedure is
very quick, sometimes taking less than 20 minutes. Also, recovery
time is short. Patients are able to eat a light snack and drink
immediately after the surgery. The results of the surgery are
almost immediate. Most people notice an improvement in their vision
soon after surgery. You will still need glasses to read after
the surgery. Your new prescription is given several weeks after
the procedure.
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