A Comparison of Axial Length, Keratometry, and Measured White-to-white Using Different Devices.
10.3341/jkos.2017.58.12.1325
- Author:
Miri NA
1
;
Hyun Soo LEE
;
Sang Hee DOH
;
Sung Kun CHUNG
Author Information
1. Saevit Eye Hospital, Goyang, Korea. eyekun@gmail.com
- Publication Type:Original Article
- Keywords:
Axial length;
Galilei™;
Keratometry reading;
Lenstar®;
White to white
- MeSH:
Cataract;
Humans
- From:Journal of the Korean Ophthalmological Society
2017;58(12):1325-1332
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To compare the accuracy and clinical usefulness of various devices by measuring axial length, keratometry, and white-to-white. METHODS: In 64 eyes of 56 cataract patients, axial length was measured using Galilei™, Lenstar®, and A-scans, and keratometry was measured using Galilei™, Lenstar®, and ARK. In 86 eyes of 74 cataract patients, white-to-white was measured using Galilei™ and Lenstar®. RESULTS: The average axial length measurements using Galilei™, Lenstar®, and A-scans were significantly correlated (p < 0.001), but without a statistically significant difference (p = 0.611). The 95% agreement range was the smallest at 0.22 mm for the Lenstar® and A-scans. The average mean K using Galilei™, Lenstar®, and ARK were significantly correlated (p < 0.001), but without a statistically significant difference (p = 0.657). The 95% agreement range was relatively small at 1.83 D for Lenstar® and ARK. The average white-to-white using Galilei™ and Lenstar® were significantly correlated (p < 0.001), with a statistically significant difference (p = 0.011). The 95% agreement range was 2.20 mm. CONCLUSIONS: Axial length, keratometry, and white-to-white measured by different devices were highly correlated and were not statistically different; however, agreement was low between measurements. It is therefore important to consider these findings when using them equally.
