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. 2021 May 31;8:22. doi: 10.1186/s40662-021-00245-3

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. 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 in a credit line to the data.

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Fig. 4 — Distribution of lens thickness in dependence of the axial length. a Scatter plot showing the LT against AL among cataract patients. In short eyes, the equation resulting from the linear regression analysis (red line) was: LT (mm) = 0.024 AL (mm) + 4.241 mm (r = 0.076, P = 0.004). In normal eyes, the equation resulting from the linear regression analysis (orange line) was: LT (mm) = − 0.117 AL (mm) + 7.281 mm (r = − 0.166, P < 0.001). In moderate myopic eyes, no significant correlation was found between LT and AL (green dotted line; r = − 0.006, P = 0.760). In highly myopic eyes, the equation resulting from the linear regression analysis (blue line) was: LT (mm) = 0.040 AL (mm) + 3.235 mm (r = 0.207, P < 0.001). b Histogram showing the comparisons of LT in different AL groups after adjusting for age and gender. AL, axial length; LT, lens thickness