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使用新型生物测量仪和标准生物测量仪对眼生物测量和人工晶状体度数进行比较。

Comparison of ocular biometry and intraocular lens power using a new biometer and a standard biometer.

作者信息

Srivannaboon Sabong, Chirapapaisan Chareenun, Chonpimai Pratuangsri, Koodkaew Sunisa

机构信息

From the Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.

From the Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.

出版信息

J Cataract Refract Surg. 2014 May;40(5):709-15. doi: 10.1016/j.jcrs.2013.09.020. Epub 2014 Mar 18.

DOI:10.1016/j.jcrs.2013.09.020
PMID:24656166
Abstract

PURPOSE

To compare the repeatability and reproducibility of ocular biometry and intraocular lens (IOL) power obtained with a new optical biometer (AL-Scan) and a standard optical biometer (IOLMaster 500).

SETTING

Siriraj Hospital, Mahidol University, Bangkok, Thailand.

DESIGN

Prospective comparative study.

METHODS

Two independent operators measured eyes with cataract using both biometers. The keratometry values, axial length, anterior chamber depth, white-to-white (WTW) corneal diameter, and IOL power calculated using the Holladay 1 formula obtained with each device were recorded. Intraoperator repeatability and interoperator reproducibility of both devices were analyzed using the intraclass correlation coefficient (ICC). The agreement in ocular biometry and IOL power between the 2 devices was evaluated by the Bland-Altman method.

RESULTS

The study recruited 137 eyes of 81 patients. The repeatability and reproducibility of both devices were high for all ocular biometry measurements (ICC, 0.87-1.00). Except for the WTW corneal diameter (ICC, 0.44), the agreement between the biometers was also high (ICC, 0.98-0.99). The IOL powers calculated by the Holladay 1 formula were similar between the 2 biometers.

CONCLUSION

The new optical biometer provided excellent repeatability and reproducibility for all ocular biometry. Agreement with the standard optical biometer was good except for the WTW corneal diameter.

摘要

目的

比较使用新型光学生物测量仪（AL-Scan）和标准光学生物测量仪（IOLMaster 500）获得的眼生物测量数据及人工晶状体（IOL）度数的可重复性和再现性。

设置

泰国曼谷玛希隆大学诗里拉吉医院。

设计

前瞻性比较研究。

方法

两名独立操作人员使用两种生物测量仪对白内障患者的眼睛进行测量。记录使用每种设备获得的角膜曲率值、眼轴长度、前房深度、角膜白对白（WTW）直径以及使用Holladay 1公式计算的IOL度数。使用组内相关系数（ICC）分析两种设备的测量者内可重复性和测量者间再现性。采用Bland-Altman方法评估两种设备在眼生物测量和IOL度数方面的一致性。

结果

该研究纳入了81例患者的137只眼睛。两种设备在所有眼生物测量中的可重复性和再现性都很高（ICC，0.87 - 1.00）。除角膜WTW直径（ICC，0.44）外，两种生物测量仪之间的一致性也很高（ICC，0.98 - 0.99）。两种生物测量仪通过Holladay 1公式计算的IOL度数相似。

结论

新型光学生物测量仪在所有眼生物测量中均具有出色的可重复性和再现性。除角膜WTW直径外，与标准光学生物测量仪的一致性良好。

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