Intraocular lens calculations after refractive surgery

For IOL power selection in previously myopic patients, a predictive formula to calculate IOL power based only on the pre-refractive surgery SEQm and current flattest keratometry readings was not statistically different from IOLexact. The IOLHisKs, which was also not statistically different from IOLexact, requires pre-refractive surgery keratometry readings that are often not available to the cataract surgeon.