The Development of a Thick-Lens Post-Myopic Laser Vision Correction Intraocular Lens Calculation Formula

center dot PURPOSE: To describe the development of the postmyopic laser vision correction (LVC) version of the PEARL-DGS intraocular lens (IOL) calculation formula and to evaluate its outcomes on an independent test set. center dot DESIGN: Retrospective, single -center case series. center dot METHODS: A modified lens position prediction algorithm was designed along with methods to predict the posterior corneal curvature radius and correct the corneal power measurement error. A different set of previously operated eyes that underwent LVC was used to evaluate the prediction precision of the post-LVC formula. center dot RESULTS: Post-LVC PEARL-DGS formula significantly reduced mean absolute error of prediction in comparison to Haigis-L, Shammas, and American Society of Cataract and Refractive Surgery (ASCRS) average formulas ( P < .001). It exhibited similar postoperative refractive precision as the Barrett True -K No History formula ( P = .61). center dot CONCLUSION: The post-LVC formula development process described in this article performed as well as the state -of -the -art post-LVC formula on the present test set. Further studies are required to assess its efficacy in other independent sets. (Am J Ophthalmol 2024;262: 4047. (c) 2023 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ ))