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. 2020 Nov 1;104(11):1608–1612. doi: 10.1136/bjophthalmol-2019-315260

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© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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(A) The K1, K2 and Kmax values were stable during the 36-month follow-up (p>0.05). There is no statistical significance between each time point. K1, steepest meridian keratometry; K1, flattest meridian keratometry; Kmax, maximum keratometry. (B) The CCT, AT and TCT values were stable during the 36-month follow-up (p>0.05). There is no statistical significance between each time point. (C) The PCE and PME values showed non-significant changes in the first postoperative 12 months (p>0.05), and significantly increased at 36 months after ATE-CXL (p<0.05). No significant changes were observed in PME during 36-month follow-up (p>0.05). AT, apex thickness; ATE-CXL, accelerated transepithelial corneal cross-linking; CCT, central corneal thickness; PCE, posterior central elevation; PHE, posterior highest elevation; PME, posterior mean elevation; TCT, thinnest corneal thickness.