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Fit zones in the measurement of posterior cornea following laser in situ keratomileusis(LASIK) Hiroshi Marutani 1 , Yoshiaki Nawa 1 , Hidekazu Kajimoto 1 , Tetsuo Ueda 1 , Kozo Masuda 1 , Yoshiaki Hara 1 1Dept of Ophthalmol,Nara Med Univ pp.292-294
Published Date 2003/3/15
DOI https://doi.org/10.11477/mf.1410101140
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Abstract. We measured the morphology of posterior corneal surface in 15 myopic eyes before and after laser in situ keratomileusis(LASIK). We took two fit zones in the measurement:7 to 10 mm and 6 to 8 mm from the center of the cornea. There was no difference in the posterior differential elevation map between the two methods. We also performed similar measurements in two healthy persons on four different days. There were greater fluctuations in the measured value when the fit zone was set at 7 to 10 mm.This finding seemed to be due to inaccuracy in measuring the peripheral cornea and to influence by eyelid or cilia. We advocate measuring the fit zone of 6 to 8 mm in such instances.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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