A cataract is a clouding of the lens of the eye. This
results in blurred vision that cannot be improved with glasses. This may
impair ones daily activities, such as reading and driving a car.
What causes cataracts?
There are many causes of cataract formation including
trauma inflammations and some medications. The most common cause of
cataracts however is the natural aging process. Although cataracts can
occur at any age, including childhood, the incidence of cataracts
increases with advancing age. Most individuals over the age of 65 will
start to develop some degree of cataract formation.
What can be done about cataracts?
As long as your vision allows you to perform your normal
daily activities, nothing need be done about a cataract. You should see
your doctor to obtain the best possible glasses correction of your vision.
However, when your cataract progresses and the resulting blurred vision
impairs your daily activities such as reading and driving, the only
definitive treatment is cataract surgery.
How are cataracts surgically removed?
A small incision (about 3 millimeters) is made in the
side of the eye allow the use of an ultrasonic instrument to emulsify and
aspirate the hard center of the cataract. Then an acrylic or silicone lens
is folded and implanted into eye to restore natural vision. The incision
then heals with a single suture or in some cases without a suture.
What restrictions are there after cataract surgery?
There are few restrictions after most cataract
operations. It is usually recommended that you avoid dirty environments
and strenuous physical activities for a couple of weeks. You may resume
most activities including deskwork and driving within a few days.
Are there any risks involved with cataract surgery?
Small incision cataract surgery is one of the most
successful of all surgical procedures, with a success rate of over a 95%
for improving vision. However any surgical procedure entails risk.
Although the incidence of significant complications in cataract surgery is
extremely small, there are remote risks of potentially serious
complications. These should be thoroughly discussed with your doctor prior
to surgery.
