Correlation between keratometric measurements obtained by the VERION Image Guided System, optical biometry (IOLMaster) and corneal topography in Egyptian cataractous patients

Abstract

Recent applications and developments have increased the accuracy of preoperative corneal shape and refractive power evaluations prior to phacoemulsification with intraocular lens (IOL) implantation. The toric IOL has been shown to have substantial efficacy in correcting astigmatism. Accurate keratometry values (K-values) can be used as part of surgical planning for corneal incision design, astigmatic keratotomy (AK), the management of surgery-induced astigmatism (SIA), and correcting postoperative residual astigmatism. Several previous studies have compared corneal astigmatism measurements obtained using a range of keratometers.