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

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 cor...

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Bibliographic Details
Main Authors: Lee, Jae Hyuck (Author) , Knorz, Michael C. (Author) , Auffarth, Gerd U. (Author)
Format: Article (Journal)
Language:English
Published: 27 Dec 2018
In: Journal of ophthalmology
Year: 2018, Pages: 1-7
ISSN:2090-0058
DOI:10.1155/2018/6764805
Online Access:Verlag, Volltext: https://doi.org/10.1155/2018/6764805
Verlag: https://www.hindawi.com/journals/joph/2018/6764805/
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Author Notes:Jae Hyuck Lee, Yong Woo Lee, Jong Soo Lee, Michael C. Knorz, Gerd U. Auffarth, and Chul Young Choi
Description
Summary: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.
Item Description:Gesehen am 25.02.2020
Physical Description:Online Resource
ISSN:2090-0058
DOI:10.1155/2018/6764805

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