RK
(radial keratotomy) is a procedure that can help people with
mild to moderate myopia. AK (astigmatic keratotomy) is used
to help people with astigmatism. You may have heard these
procedures mentioned-they've been done for many years. The
RK and AK procedures have evolved and improved over time,
and are very reliable. The actual surgery takes minutes, and
you'll spend only an hour or two in the office or surgical
facility.
Correcting Myopia (RK)
During RK, tiny spokelike incisions
are made in the cornea. When these incisions heal, the center
of the cornea flattens. A flatter cornea means distant objects
are clearer.
Correcting Astigmatism
(AK)
During AK, curved or straight incisions
are made in the cornea. These incisions help round out an
oval cornea. A rounder cornea means objects are no longer
distorted.
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