Research Article

Accuracy of Intraocular Lens Power Formulas Involving 148 Eyes with Long Axial Lengths: A Retrospective Chart-Review Study

Figure 1

Comparisons of absolute errors in all eyes (). Absolute errors for the four intraocular lens (IOL) calculation formulas. The horizontal lines below and above the main box (whiskers) for each formula represent 2.5 and 97.5 percentile. The symbol + indicates mean absolute error, indicates , and indicates , as determined by a repeated-measures ANOVA test. D, diopters.