Simultaneous Corneal Topography and Epithelial Thickness Mapping from a Single Measurement Using Optical Coherence Tomography

Table 1

Intraobserver repeatability results for ETMs using REVO NX based on three measurements taken by 2 operators in a sample of 40 eyes.

Sector	Operator	Mean ± SD	TRT	Sw	CoV (%)	ICC
Superior (μm)	1st	51.53 ± 3.45	1.60	0.58	1.12	0.98
	2nd	51.27 ± 3.22	3.36	1.21	2.36	0.88
Superior-temporal (μm)	1st	51.47 ± 3.28	1.89	0.68	1.33	0.96
	2nd	51.30 ± 3.00	3.89	1.40	2.73	0.82
Temporal (μm)	1st	51.43 ± 3.26	1.82	0.66	1.28	0.97
	2nd	51.33 ± 2.99	3.36	1.21	2.36	0.86
Inferior-temporal (μm)	1st	51.23 ± 3.09	2.77	1.00	1.95	0.91
	2nd	51.53 ± 3.12	2.09	0.75	1.46	0.95
Inferior (μm)	1st	51.13 ± 3.04	3.12	1.13	2.20	0.89
	2nd	51.47 ± 3.07	2.37	0.86	1.66	0.94
Inferior-nasal (μm)	1st	51.07 ± 2.98	3.51	1.26	2.48	0.85
	2nd	51.57 ± 2.99	2.53	0.91	1.77	0.92
Nasal (μm)	1st	51.20 ± 3.06	2.53	0.91	1.78	0.93
	2nd	51.43 ± 3.05	2.77	1.00	1.94	0.91
Superior-nasal (μm)	1st	51.17 ± 3.07	2.86	1.03	2.02	0.91
	2nd	51.73 ± 2.83	3.04	1.10	2.12	0.88
Central (μm)	1st	51.50 ± 3.22	1.96	0.71	1.37	0.96
	2nd	51.43 ± 3.34	2.21	0.80	1.55	0.95
Superior_Out (μm)	1st	51.13 ± 2.96	3.95	1.43	2.79	0.81
	2nd	51.67 ± 2.67	3.98	1.44	2.78	0.76
Superior-temporal_Out (μm)	1st	51.20 ± 2.80	3.89	1.40	2.74	0.79
	2nd	51.80 ± 2.62	3.51	1.26	2.44	0.81
Temporal_Out (μm)	1st	51.10 ± 2.87	4.08	1.47	2.88	0.78
	2nd	51.67 ± 2.44	4.11	1.48	2.87	0.69
Inferior-temporal_Out (μm)	1st	51.53 ± 2.61	4.05	1.46	2.83	0.74
	2nd	51.87 ± 2.47	2.95	1.06	2.05	0.85
Inferior_Out (μm)	1st	51.20 ± 2.80	3.58	1.29	2.52	0.82
	2nd	51.80 ± 2.62	3.51	1.26	2.44	0.81
Inferior-nasal_Out (μm)	1st	51.93 ± 2.74	3.36	1.21	2.33	0.79
	2nd	52.03 ± 2.63	3.36	1.21	2.33	0.82
Nasal_Out (μm)	1st	51.57 ± 2.58	2.26	0.82	1.58	0.92
	2nd	51.43 ± 3.00	2.99	1.08	2.10	0.89
Superior-nasal_Out (μm)	1st	51.30 ± 2.20	4.05	1.46	2.85	0.64
	2nd	51.67 ± 3.24	3.61	1.30	2.52	0.87