Inter-device measurement variability of vital data parameters for keratorefractive and cataract refractive surgery.

ABSTRACT:

Introduction

The measurements of corneal white-to-white (WTW) diameter and pupil size are critical for decision making in refractive surgery. Currently, automatic measurement of keratometry, corneal WTW, and pupil size are implemented in several ocular devices. The purpose of this study was to examine the agreement between two commonly used devices, an autorefractor and an optical biometer, for these parameters.

Methods

Measurements were performed with both a Lenstar LS-900 and Nidek ARK-1 by an experienced examiner in random order. The devices were placed in close proximity within the same dimly lit room.

Results

The measurements of 65 right eyes were analyzed. The results of the flat, steep, and mean keratometric reading were not significantly different (p = 

SUBMITTER: Kanclerz P 

PROVIDER: S-EPMC8458669 | biostudies-literature | 2021 Jan-Dec

REPOSITORIES: biostudies-literature