Fig. 2From: The Zhu-Lu formula: a machine learning-based intraocular lens power calculation formula for highly myopic eyesPercentages of eyes within ± 0.25 D, ± 0.50 D, ± 0.75 D, and ± 1.00 D of the prediction errors of each formula in the internal (a) and external (b) test datasets. BUII, Barrett Universal II; EVO, Emmetropia Verifying Optical; RBF, Radial Basis Function; D, diopterBack to article page