Comparison of color light-emitting diode corneal topographer and dual rotating Scheimpflug-placido topographer

• Verfasst von: Lee, Jae Hyuck [VerfasserIn]
• Verfasst von: Knorz, Michael C. [VerfasserIn]
• Verfasst von: Auffarth, Gerd U. [VerfasserIn]
• Titel: Comparison of color light-emitting diode corneal topographer and dual rotating Scheimpflug-placido topographer
• Verf.angabe: Jae Hyuck Lee, Yong Woo Lee, Jong Soo Lee, Michael C. Knorz, Gerd U. Auffarth, and Chul Young Choi
• E-Jahr: 2018
• Jahr: 27 Dec 2018
• Umfang: 7 S.
• Fussnoten: Gesehen am 25.02.2020
• Titel Quelle: Enthalten in: Journal of ophthalmology
• Ort Quelle: New York, NY : Hindawi, 2009
• Jahr Quelle: 2018
• Band/Heft Quelle: (2018), Artikel-ID 6764805, Seite 1-7
• ISSN Quelle: 2090-0058
• DOI: doi:10.1155/2018/6764805
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1690935308

Abstract

Purpose: To compare measurements of anterior and posterior keratometric values, using a color light-emitting diode corneal topographer and a dual rotating Scheimpflug-Placido topographer. Methods: Anterior and posterior corneal index measurements were performed using a color light-emitting diode corneal topographer (Cassini) and a dual rotating Scheimpflug-Placido topographer (Galilei G4) and then compared. The paired t-test, intraclass correlation coefficients (ICCs), and Bland-Altman plots were used to evaluate the agreement between measurements. Results: Sixty postrefractive surgery eyes and 60 normal eyes were evaluated. Both the color light-emitting diode corneal topographer and the dual rotating Scheimpflug-Placido topographer provided highly repeatable corneal measurements (ICC > 0.969). The agreement levels between the 2 devices for anterior corneal power, astigmatism magnitude, and J0 and J45 values were ICC > 0.906 for the total group. However, the ICC values for posterior corneal power, astigmatism magnitude, and J0 and J45 values were lower than 0.681 for the total group. Conclusions: The anterior keratometric values obtained by the color light-emitting diode corneal topographer and the dual rotating Scheimpflug-Placido topographer showed high agreement levels, but the posterior keratometric values showed lower agreement levels.