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. 2016 Sep 20;16:163. doi: 10.1186/s12886-016-0342-x

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© The Author(s). 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — Bland-Altman charts showed difference in average corneal epithelial thickness measurements in relation to mean measurement between the two methods (AS-OCT minus IVCM). A positive difference showed that the values measured by AS-OCT was thicker. Bias ± 95 % limits of agreement were also displayed. No relationship was found between differences in central, superior, inferior, temporal or nasal epithelial thickness