Abstract

Purpose: To evaluate and compare the accuracy of Barrett Versus 3rd generation formulae for different intraocular lens (IOL) powers for Indian eyes with different axial lengths. Setting: The Eye Foundation Hospital, Coimbatore, Tamil Nadu, India- a tertiary eye care Center Design: Retrospective, Non-Randomized consecutive case series. Methods: This study reviewed 981 eyes from 825 patients who had uneventful cataract surgery and IOL implantation. Eyes were separated into subgroups based on axial length as follows: short (lt;22.0 mm), medium (22.0 to 23.99 mm) and long (gt;24.0 mm).