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Old 05-20-2009, 09:57 PM
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Hi,

Please see the following section for information that will be useful:

http://www.lasik.md/learnaboutlasik/precautions.php

The basic issue is that laser vision correction thins the cornea and there is a limit to how much thinning can take place. However, there are few, if any, absolute rules as to when a cornea is too thin. Therefore, more conservative surgeons switch to PRK to conserve thickness earlier than more aggressive surgeons.
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