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Revision as of 04:02, 25 June 2005 by Tdxiang (talk | contribs)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)Corneal refractive therapy (CRT) is a method used to correct myopia. Using a hard lens, it reshapes the cornea of the human eye overnight and restores vision the next day. However,it is not permanent,so users can swith to other options.It is marketed by Paragon Vision Sciences.
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