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.