Comparability and repeatability of corneal astigmatism measurements using different measurement technologies
Comparability and repeatability of corneal astigmatism measurements using different measurement technologies
复制标题
DOI：
10.1016/j.jcrs.2012.05.036
复制
发表时间：
2012-10-01
影响因子：
2.8
通讯作者：
Nuijts, Rudy M. M. A.
中科院分区：
文献类型：
--
作者：
Visser, Nienke;Berendschot, Tos T. J. M.;Nuijts, Rudy M. M. A.
PURPOSE: To determine the comparability and repeatability of corneal astigmatism measurements obtained with different devices and determine the interobserver variability of a new automated keratonneter.SETTING: University Eye Clinic Maastricht, the Netherlands.DESIGN: Prospective cohort study.METHODS: The right eye of healthy subjects was examined with the following 6 devices: IOLMaster (automated keratometry), Lenstar (automated keratometry), SMI Reference Unit 3 (automated keratometry), Javal (manual keratometry), KR-1W (corneal topography), and Pentacam (Scheimpflug imaging). An experienced operator obtained 3 repeated measurements. An inexperienced operator obtained additional measurements with the SMI Reference Unit 3. Astigmatism vector analysis was used to determine the comparability, repeatability, and interobserver variability.RESULTS: Corneal astigmatism vectors measured by automated, manual, or simulated keratometry were comparable except for the Pentacam equivalent keratometry (K) (P
