Research Article
OCT Biometry (B-OCT): A New Method for Measuring Ocular Axial Dimensions
Table 3
Measurement values comparison between B-OCT REVO NX and IOLMaster 700.
| | n | Device | Mean | SD | Paired samples t-test ( value) | Range | Difference of the means | SD for difference of the means | 95% CI for difference of the means | ICC |
| Healthy | Axial length (mm) | 164 | REVO NX | 23.56 | 1.56 | 0.2664 | 19.11–34.48 | −0.001 | 0.016 | −0.004 to 0.001 | 1.000 | IOLMaster 700 | 23.56 | 1.56 | 19.09–34.48 | Anterior chamber depth (mm) | 164 | REVO NX | 3.35 | 0.34 | 0.9265 | 1.65–4.32 | 0.000 | 0.024 | −0.004 to 0.004 | 0.998 | IOLMaster 700 | 3.35 | 0.35 | 1.61–4.29 | Lens thickness (mm) | 164 | REVO NX | 4.08 | 0.41 | 0.3398 | 3.30–5.34 | −0.002 | 0.024 | −0.006 to 0.002 | 0.998 | IOLMaster 700 | 4.08 | 0.41 | 3.31–5.37 | Central corneal thickness (µm) | 164 | REVO NX | 554.1 | 34.4 | 0.0552 | 478.1–682.3 | −0.8 | 5.1 | −1.6 to 0.0 | 0.989 | IOLMaster 700 | 553.4 | 35.5 | 477.3–684.0 |
| Cataract | Axial length (mm) | 111 | REVO NX | 23.81 | 1.89 | 0.1185 | 19.62–32.07 | −0.003 | 0.022 | −0.007 to 0.001 | 1.000 | IOLMaster 700 | 23.80 | 1.89 | 19.60–32.01 | Anterior chamber depth (mm) | 112 | REVO NX | 3.10 | 0.41 | 0.3326 | 2.16–3.98 | 0.003 | 0.029 | −0.003 to 0.008 | 0.997 | IOLMaster 700 | 3.10 | 0.41 | 2.14–4.04 | Lens thickness (mm) | 111 | REVO NX | 4.64 | 0.35 | 0.4364 | 3.94–5.48 | −0.002 | 0.025 | −0.007 to 0.003 | 0.997 | IOLMaster 700 | 4.63 | 0.35 | 3.94–5.51 | Central corneal thickness (µm) | 115 | REVO NX | 546.5 | 33.1 | <0.0001 | 437.8–631.0 | 2.7 | 6.4 | 1.5 to 3.9 | 0.979 | IOLMaster 700 | 549.2 | 33.6 | 438.2–647.0 |
|
|
Difference of the means was computed by subtracting REVO NX values from IOLMaster 700 values.
|