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Axial eye length measurements pre- and post- laser-assisted in situ keratomileusis using the IOL Master: a pilot study

Authors Spyridon E Chalkiadakis, Georgios A Amariotakis, Efstratios A Parikakis, et al

Published 8 November 2010 Volume 2010:4 Pages 1267—1269

DOI https://doi.org/10.2147/OPTH.S14332

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Spyridon E Chalkiadakis, Georgios A Amariotakis, Efstratios A Parikakis, Vasileios G Peponis
Athens Eye Hospital, 2nd Eye Clinic, Athens, Greece

Purpose: A preliminary study in order to test the accuracy of the IOL Master in detecting axial eye length changes after laser-assisted in situ keratomileusis and to correlate the findings with the theoretical ablation depth.
Methods: Pre- and postoperative axial eye length measurements were performed in 10 consecutive eyes that underwent laser-assisted in situ keratomileusis with the Alcon Ladar Vision excimer laser to treat myopic refractive errors ranging from -2.50 to -8.00 diopters of spherical equivalent (mean: -5.23 ± 1.30 D).
Results: The preoperative axial eye length measurements ranged from 24.53 mm to 27.78 mm (mean: 25.80 ± 1.01 mm) and from 24.57 mm to 27.57 mm (mean: 25.68 ± 0.93 mm) 1 month after the operation. Preoperative and 1-month postoperative data showed a statistically significant difference (P <0.05).
Conclusions: The IOL Master showed a decrease in the axial eye length measurements that was bigger than the theoretical ablation depth and did not correlate well with it. Such data need to be confirmed by a larger cohort of patients.

Keywords: ablation, biometry, coherence, excimer, interferometry, keratomileusis, laser

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