Christopher KL, Patnaik JL, Miller C, et al. - In patients with cataract who had prior myopic refractive surgery, researchers conducted this retrospective consecutive case series to evaluate the accuracy of intraoperative aberrometry, the Barrett True-K No History (Barrett TKNH), Barrett TKNH with posterior corneal measurements (Barrett TKNH with PC), Shammas-PL, and Haigis-L formulas. The sample consisted of patients with prior myopic refractive surgery undergoing cataract extraction. Participants in the study were 79 patients (116 eyes). Data reported that mean absolute error was 0.40 ± 0.33 diopters (D) for intraoperative aberrometry and 0.42 ± 0.31 D for the Barrett TKNH, 0.38 ± 0.30 D for the Barrett TKNH with PC, 0.47 ± 0.38 D for the Shammas-PL, and 0.56 ± 0.39 D for the Haigis-L formulas. As compared to existing methods for intraocular lens selection in eyes that had previous laser refractive surgery for myopia, newer technology using information from the posterior cornea modestly improved results.