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Minchul Shin, Se Yoon Chung, Hyo Kyung Lee, Ho Sik Hwang, Kyung Eun Han; Comparison of Central Corneal Thickness and Anterior Chamber Depth measured by Three Different Devices. Invest. Ophthalmol. Vis. Sci. 2015;56(7 ):5745.
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© ARVO (1962-2015); The Authors (2016-present)
To compare measurements obtained by Galilei™, Pentacam® (Oculus, Wetzlar, Germany) and Lenstar® (Haag-Streit, Koeniz, Switzerland) and analyze the agreements of the measurements.
Central corneal thickness(CCT) and Anterior chamber depth(ACD) were measured by Galilei, Pentacam, and Lenstar in 47 eyes of 25 healthy subjects. The measurements were compared among the 3 devices.
The average measurements of CCT by Galilei, Pentacam, Lenstar were 552.6 ± 29.41 μm, 543.9 ± 30.50 μm, 537.5 ± 30.26 μm, respectively. The measurements were significantly correlated with each other (r>0.9, p<0.001), but were statistically significantly different (p<0.001). The average measurements of ACD by Galilei, Pentacam, Lenstar were 3.23 ± 0.360 mm, 3.22 ± 0.403 mm, 3.19 ± 0.367 mm, respectively. The measurements were significantly correlated with each other (r>0.9, p<0.001), but were statistically significantly different (p=0.034). The 95% limits of agreements(LoA) of CCT between Galilei and Pentacam, Pentacam and Lenstar, Lenstar and Galilei were 31.95 μm, 44.76 μm, 46.57 μm, and 95% LoA of ACD were 0.46 mm, 0.32 mm, 0.28 mm, respectively.
CCT and ACD measured by the 3 devices were highly correlated with each other, but the measurements were statistically different. Therefore, those measurements were not interchangeable and these differences should be considered in clinical use.
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