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. 2024 Mar 26;13(7):1906. doi: 10.3390/jcm13071906

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© 2024 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Correlation and regression analysis of Δ SA vs. Δ Q. This figure comprises three plots representing the correlation and regression analysis for the change in Δ SA against the change in Q-value (Δ Q) across LASIK (A), PRK (B), and SMILE (C). Each scatter plot with a linear regression line shows the equation of the regression line and the corresponding R² value. PRK = photorefractive keratectomy, LASIK = laser-assisted in situ keratomileusis, SMILE = small incision lenticule extraction, HOAs = higher-order aberrations, SA = spherical aberration.