Anterior-Segment Swept-Source Ocular Coherence Tomography and Scheimpflug Imaging Agreement for Keratometry and Pupil Measurements in Healthy Eyes

Abstract

This study examines agreement between the devices Anterion(R) and Pentacam HR(R) used for corneal and pupil measurements in healthy eyes. The parameters compared between the two devices were: anterior Km (D), anterior K2 (D), anterior K1 (D), anterior K1 axis (degrees), anterior astigmatism (D), anterior K max (D), posterior Km (D), posterior K2 (D), posterior K1 (D), posterior K1 axis (degrees), posterior astigmatism (D), CCT (mu m), thinnest point thickness (mu m), thinnest point X-coordinate (mm), thinnest point Y-coordinate (mm), pupil diameter (mm), pupil center-corneal vertex distance (mm) (angle kappa), pupil centroid angle (degrees), pupil centroid X-coordinate (mm), and pupil centroid Y-coordinate (mm). The Student's t test for independent samples identified significant differences (p