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. 2021 Aug 20;10(4):753–776. doi: 10.1007/s40123-021-00383-w

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, which permits any non-commercial 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-nc/4.0/.

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Fig. 5 — Distribution of preoperative myopia in ectatic eyes without identifiable risk factors for ectasia that underwent PRK (orange), LASIK (blue), or SMILE (yellow) (p = 0.002). Proportion of eyes in each level of myopia adds to 100% across each type of corneal refractive surgery. *There was a significantly greater proportion of eyes in PRK with low myopia preoperatively compared to other myopia levels