Fig. 5From: Accuracy of refractive outcomes using standard or total keratometry for intraocular lens power formulas in conventional cataract surgerySmoothed line plot of prediction error (PE, diopters, Y-axis) in different average keratometry (diopters, X-axis). The solid dots denote the K-based formulas, while the open dots denote the TK-based formulas. D, diopter; TK, total keratometry; BUII, Barrett universal II; H2, Holladay2Back to article page