Impact of Corneal Posterior-to-Anterior Radius Ratio on Intraocular Lens Power Calculations: Rethinking the Role of Total Keratometry

Impact of Corneal Posterior-to-Anterior Radius Ratio on Intraocular Lens Power Calculations: Rethinking the Role of Total Keratometry

This study reveals that the corneal posterior-to-anterior radius ratio (PAR) influences the refractive prediction differences between standard keratometry (K) and total keratometry (TK) for intraocular lens (IOL) power calculations, underscoring PAR as a potential biomarker for personalized keratometric approaches.