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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. 2 — Schematic corneas displaying epithelial thickness of central, superior, inferior, temporal and nasal corneas. The figs. in each zone represented mean epithelial thickness measured by AS-OCT and IVCM and the bias (mean difference) between AS-OCT and IVCM (AS-OCT minus CM). An asterisk denoted significant difference in mean thickness reading for this epithelial zone between AS-OCT and IVCM (P <0 .05). T = temporal; N = nasal