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KMID : 0360220160570101570
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Journal of the Korean Ophthalmological Society
2016 Volume.57 No. 10 p.1570 ~ p.1576
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Comparison of Anterior Chamber Depth and Central Corneal Thickness Measured Using Different Devices
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Jeung Jae-Gyun
Gil Tae-Young
Bae Gi-Hyun
Shin Seong-Joo
Chung Sung-Kun
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Abstract
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Purpose: To compare the accuracy and clinical usefulness of different devices by measuring anterior chamber depth (ACD) with three devices and central corneal thickness (CCT) with four devices.
Methods: In 180 eyes of 90 healthy subjects, ACD was measured using A-scan, Lenstar LS900ⓡ, Pentacamⓡ, and CCT was measured using ultrasound pachymetry (USP), Lenstar LS900ⓡ, Pentacamⓡ, and anterior segment optical coherence tomography (OCT).
Results: The average ACT measurements using Lenstar LS900ⓡ, A-scan, and Pentacamⓡ were 3.27 ± 0.35 mm, 3.26 ± 0.36 mm, and 3.25 ± 0.36 mm, respectively. The measurements were significantly correlated (p < 0.001) but without statistically significant difference (p = 0.017). The Bland-Altman plots showed a low degree of agreement. The average CCT measurements using Pentacamⓡ, USP, Lenstar LS900ⓡ, and OCT were 553.31 ± 25.23 μm, 547.26 ± 23.83 μm, 541.38 ± 24.49 μm, and 531.40 ± 22.33 μm, respectively. The measurements were significantly correlated (p < 0.001) and statistically significantly different (p < 0.05). The Bland-Altman plots showed a low degree of agreement.
Conclusions: ACD and CCT measured using different devices were highly correlated, but the ACD measurements were not statistically different; however, the CCT measurements were statistically different, and agreement was low between both measurements.
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KEYWORD
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Anterior chamber depth, A-scan, Central corneal thickness, Lenstarⓡ, Pentacamⓡ
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