Comparison of 9 intraocular lens power calculation formulas

Purpose To evaluate the accuracy of 9 intraocular lens (IOL) calculation formulas using 2 optical biometers. Setting Private practice, Saint Joseph, Michigan, USA. Design Retrospective consecutive case series. Methods Nine IOL power formula predictions with observed refractions after cataract surgery were compared using 1 IOL platform. The performance of each formula was ranked for accuracy by machine and by axial length (AL). The Olsen was...