A new intraocular lens calculation formula.
Data from 166 eyes with iridocapsular implants were analyzed and different prediction methods were compared. A new formula was derived which predicted implant power better than any other method. The theoretic formulas and correction factors of Fyodorov, Colenbrander, and others were examined in detail and compared to the more accurate, simpler linear regression formula derived in this study.
D003201:Computers; D006801:Humans; D007910:Lenses, Intraocular / Q000592:standards*; D055095:Optics and Photonics; D012029:Refraction, Ocular; D012044:Regression Analysis