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彩色发光二极管角膜地形图仪与双旋转Scheimpflug - Placido角膜地形图仪的比较

Comparison of Color Light-Emitting Diode Corneal Topographer and Dual Rotating Scheimpflug-Placido Topographer.

作者信息

Lee Jae Hyuck, Lee Yong Woo, Lee Jong Soo, Knorz Michael C, Auffarth Gerd U, Choi Chul Young

机构信息

Department of Ophthalmology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.

Department of Ophthalmology, Pusan National University Hospital, Pusan National University School of Medicine and Medical Research Institute, Yangsan, Republic of Korea.

出版信息

J Ophthalmol. 2018 Dec 27;2018:6764805. doi: 10.1155/2018/6764805. eCollection 2018.

DOI:10.1155/2018/6764805
PMID:30687546
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6327256/
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 -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 0 and 45 values were ICC > 0.906 for the total group. However, the ICC values for posterior corneal power, astigmatism magnitude, and 0 and 45 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.

摘要

目的

使用彩色发光二极管角膜地形图仪和双旋转Scheimpflug - Placido地形图仪比较前后角膜曲率测量值。

方法

使用彩色发光二极管角膜地形图仪（卡西尼）和双旋转Scheimpflug - Placido地形图仪（伽利略G4）进行前后角膜指数测量，然后进行比较。采用配对t检验、组内相关系数（ICC）和Bland - Altman图来评估测量值之间的一致性。

结果

评估了60只屈光手术后眼睛和60只正常眼睛。彩色发光二极管角膜地形图仪和双旋转Scheimpflug - Placido地形图仪均提供了高度可重复的角膜测量值（ICC>0.969）。两组设备在前角膜屈光力、散光量以及0°和45°值之间的一致性水平为ICC>0.906。然而，两组设备在后角膜屈光力、散光量以及0°和45°值的ICC值均低于0.681。

结论

彩色发光二极管角膜地形图仪和双旋转Scheimpflug - Placido地形图仪获得的前角膜曲率测量值显示出较高的一致性水平，但后角膜曲率测量值的一致性水平较低。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15f9/6327256/00a938118efd/JOPH2018-6764805.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15f9/6327256/00a938118efd/JOPH2018-6764805.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15f9/6327256/00a938118efd/JOPH2018-6764805.001.jpg

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