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Cataracts
What
is a Cataract?
With a clear normal lens, the images are focused clearly on the
retina and vision is sharp. With a cataract, the lens is cloudy,
causing the image to become blurred and yellowed. Vision is hazy
and colors become faded.

A cataract is a clouding of the eye's natural lens.

Cataracts affect vision by scattering incoming light.
Cataract
Treatment
When symptoms begin to appear, you may be able to improve your vision
for a while using new glasses, strong bifocals, magnification, appropriate
lighting or other visual aids.
Think about surgery when your cataracts have progressed enough to
seriously impair your vision and affect your daily life. Many people
consider poor vision an inevitable fact of aging, but cataract surgery
is a simple, relatively painless procedure to regain vision.

Plastic IOL
Cataract surgery
is very successful in restoring vision. In fact, it is the most
frequently performed surgery in the United States, with over 1.5
million cataract surgeries done each year. Nine out of 10 people
who have cataract surgery regain very good vision, somewhere between
20/20 and 20/40. During surgery, the surgeon will remove your clouded
lens, and in most cases replace it with a clear, plastic intraocular
lens (IOL).
The
Result
Before cataract
surgery, the lens is cloudy, causing images to be blurred and yellowed.
Vision is hazy and colors are faded. After surgery, the new replacement
lens (place cursor over image) provides a clear and focused image
on the retina. Vision is sharp.
About
fifty percent of people over the age of 60, and quite a few younger
then that, suffer from cataracts. A cataract is a progressive clouding
of the eye's natural lens that interferes with light passing through
to the retina. Sufferers usually describe the condition as being
similar to looking through a waterfall, or a piece of wax paper,
with a gradual blurring or dimming of vision. Reading may become
more difficult and driving a car can actually become dangerous.
Cataract sufferers may also be troubled by a bothersome glare, halos
around lights, or even double vision. Currently, there is no treatment
to reverse or prevent the development of cataracts. Once they form,
the only way to achieve clear vision again is to physically remove
the cataract from the eye.
Today, cataract
surgery is performed on an out-patient basis, uses a local anesthetic,
and takes only a few minutes. In most cases, the cataract is broken
into microscopic particles using high-energy sound waves and then
gently suctioned from the eye using an advanced technique called
phacoemulsification. This surgery is performed through a very small
incision which is usually self-sealing, requiring no sutures. To
compensate for the removal of the eye's natural lens, an intra-ocular
lens (IOL) is implanted into the eye.
Everyone heals
somewhat differently, but many cataract patients report an improvement
in their vision right away. Most patients return to their normal
work and lifestyle routines within a few days.
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