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- $Title{Cataracts}
-
- A Medical Times Patient Education Chart
- (C) Romaine Pierson Publishers, Inc.
-
- ------------------------------------------------------------------------------
-
- Cataracts
-
- A cataract is a clouding of the lens of the eye which blocks light from
- entering the eyeball, causing blurred vision. You could compare it to a
- camera--when something blocks the light from the lens, you get a blurred
- picture.
- Cataracts are most common in elderly people although they can occur at
- any age. The cause is unknown and there are no drugs to treat the condition.
- When the cataract reaches the point that it interferes with normal activities,
- it should be removed surgically if the patient is in generally good health.
- The operation is not serious and the success rate is very high. There are
- several accepted methods of removal:
- - Extraction (most common)--The eyeball is opened and the diseased lens is
- lifted out with a freezing probe.
- - Needling--This method is usually used in children. The lens is opened
- and fluid from the eyeball enters the lens and dissolves the cataract.
- - Phaco-emulsification--A high-speed instrument is inserted into the lens
- through a small incision that breaks up the cataract and draws it out. Use of
- the smaller incision in this method makes healing time faster and hospital
- stay considerably shorter. This method has been mistakenly referred to by the
- mass media as the "Laser Method." In reality lasers are not used, but rather
- an ultrasonic beam. It is used in younger patients.
- After the operation, normal vision is restored with the use of specially
- ground eyeglasses, contact lenses, or occasionally implanted lenses in older
- patients who cannot handle a contact lens.
-