The precision and agreement of corneal thickness and keratometry measurements with SS-OCT versus Scheimpflug imaging.

ABSTRACT:

Purpose

To assess the repeatability and reproducibility of swept-source optical coherence tomography (SS-OCT) and Scheimpflug system and evaluate the agreement between the two systems in measuring multiple corneal regions in children.

Methods

Pachymetric and keratometric maps for both systems were evaluated. Central, midperipheral and peripheral corneal thickness (CT), keratometry and astigmatism power vectors were recorded. The three outcomes yielded by the same observer were used to assess intraobserver repeatability. The differences in the mean values provided by each observer were used to evaluate interobserver reproducibility. Within-subject standard deviation, test-retest repeatability (TRT) and coefficient of variation (CoV) were used to analyze the intraobserver repe

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC7285531 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature