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Home > Archive > Lasik Eyes Surgery > November 2004 > LASIK Quote for the Day: Comments invited
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LASIK Quote for the Day: Comments invited
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| "Peeling back the flap is like putting a manhole cover back on a
manhole so cars can drive over it. The eye doesn't know that it's had
surgery, because everything's sealed up. It fools the eye into
thinking that surgery hasn't happened."
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| Glenn - USAEyes.org 2004-11-04, 7:16 pm |
| LASIK does attempt to "fool" the eye into not thinking it has not had
surgery. This reduces the keratocyte activity. The concentration and
high activity of keratocytes within the cornea after surgery is a
contributing factor to late-onset haze.
Surface ablation techniques like PRK, and its cousins LASEK and
Epi-LASIK, do not use a flap, but have a higher rate of corneal haze
than LASIK. At least, a higher rate of late-onset haze when more than
about 6.00 diopters of correction is attempted.
Mitomycin C is a medication that changes keratocyte activity and also
reduces the probability of late-onset corneal haze in higher myopes
and surface ablation correction. Mitomycin C can also eliminate haze
after it exists.
Instead of a LASIK flap, the doctor can elect to use a medication like
Mitomycin C intraoperatively with a surface ablation technique and get
the same relative net effect as using a LASIK flap (in relation to
haze). The difference is that Mitomycin C is a strong medicine that
may be appropriate when needed, but should be avoided when possible.
The LASIK flap virtually eliminates the need for application of
Mitomycin C to reduce the probability of corneal haze.
The process of ablation under a flap is, in a general way, the same as
anesthesia. One could have eye surgery without any numbing drops and
the body would know without a doubt that it has had surgery, but what
is the value of a patient experiencing pain unnecessarily? Equally,
the flap reduces the probability of late-onset corneal haze by using a
process that limits or reduces the cornea's healing response in a
positive an constructive way. This can also be accomplished with
Mitomycin C, but in some cases a LASIK flap may be a more appropriate
choice.
Glenn Hagele
Executive Director
Council for Refractive Surgery Quality Assurance
Email to glenn dot hagele at usaeyes dot org
http://www.USAEyes.org
http://www.ComplicatedEyes.org
I am not a doctor.
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| Glenn - USAEyes.org 2004-11-05, 7:14 pm |
| No other comments? No comments on my commnets?
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| wavefront information 2004-11-14, 11:09 am |
| Odd. Why do you post about MMC here without addressing the issues in
my other thread?
Are you y?
Glenn - USAEyes.org <glenn.hageleSTOPSPAM@USAEyes.org> wrote in message news:<64rno0hlercceb18n5rp4345mqs2hmbq8m@4ax.com>...
> No other comments? No comments on my commnets?
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