Abstract
Purpose: To describe the development of the post-myopic laser vision correction (LVC) version of the PEARL-DGS IOL calculation formula and to evaluate its outcomes on an independent test set. Design: Retrospective, mono-centric case series 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. Results: Post-LVC PEARL-DGS formula significantly reduced mean absolute error (MAE) of prediction in comparison to Haigis-L, Shammas and ASCRS average formulas (p<0.001). It exhibited similar postoperative refractive precision as Barrett True-K No History formula (p=0.61). Conclusion: The post-LVC formula development process described in this paper 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.
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