Table 2 Comparison of pachymetric indexes, ACD, ACA, IOP sum, HWTW, corneal volume and chamber volume between Sirius (Costruzione Strumenti Oftalmici, Italy) vs. Scansys (MediWorks, Shanghai, China)
From: A comparison of Scansys and Sirius tomography in healthy eyes
Device | N | Minimum | Maximum | Mean ± SD | Correlation | ICC | Difference of mean ± SD* | 95% CI of differences of means | P-value** | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
r | P-value | |||||||||||
Lower | Upper | |||||||||||
TCT (µm) | Sirius | 38 | 454.00 | 590.00 | 529.68 ± 24.14 | 0.970 | < 0.001 | 0.985 | -4.82 ± 5.89 | -6.75 | -2.88 | 0.000 |
Scansys | 38 | 459.00 | 590.00 | 534.50 ± 24.08 | ||||||||
CCT (µm) | Sirius | 38 | 482.00 | 613.00 | 549.89 ± 29.85 | 0.675 | < 0.001 | 0.794 | 8.34 ± 22.33 | 1.00 | 15.68 | 0.027 |
Scansys | 38 | 468.00 | 593.00 | 541.55 ± 23.82 | ||||||||
ACD (mm) | Sirius | 38 | 2.42 | 3.62 | 3.22 ± 0.22 | 0.957 | < 0.001 | 0.978 | 0.02 ± 0.07 | 0.00 | 0.04 | 0.111 |
Scansys | 38 | 2.39 | 3.61 | 3.21 ± 0.22 | ||||||||
ACA (degree) | Sirius | 38 | 33.00 | 55.00 | 46.92 ± 4.24 | 0.688 | < 0.001 | 0.728 | 5.26 ± 3.14 | 4.23 | 6.30 | < 0.001 |
Scansys | 38 | 33.00 | 45.00 | 41.66 ± 2.27 | ||||||||
HWTW (mm) | Sirius | 38 | 11.24 | 12.86 | 12.17 ± 0.37 | 0.821 | < 0.001 | 0.901 | 0.11 ± 0.22 | 0.04 | 0.18 | 0.003 |
Scansys | 38 | 11.06 | 12.70 | 12.06 ± 0.35 | ||||||||
Corneal volume (mm3) | Sirius | 38 | 50.40 | 64.30 | 57.82 ± 2.48 | 0.881 | < 0.001 | 0.937 | -3.19 ± 1.22 | -3.59 | -2.78 | < 0.001 |
Scansys | 38 | 53.71 | 67.91 | 61.01 ± 2.54 | ||||||||
Chamber volume (mm3) | Sirius | 38 | 102.00 | 236.00 | 185.71 ± 23.85 | 0.795 | < 0.001 | 0.884 | 20.47 ± 16.03 | 15.20 | 25.74 | < 0.001 |
Scansys | 38 | 93.75 | 220.97 | 165.24 ± 25.82 | ||||||||