Table 3.

Instrument algorithm vs. Custom RNFL thickness measures for quadrant and clock hours for Cirrus and Spectralis SD-OCT.

	Cirrus				Spectralis			Paired t- test
	Instrument Global Thickness (µm)	Custom Global Thickness (µm)	ICC	Paired t-test	Instrument Global Thickness (µm)	Custom Global Thickness (µm)	ICC
Global	91 ± 8	110 ± 8	0.227	<0.001	98 ± 8	110 ± 8	0.405	<0.001
Temporal	64 ± 13	76 ± 10	0.515	<0.001	73 ± 13	77 ± 10	0.803	<0.001
Superior	115 ± 15	133 ± 14	0.407	<0.001	119 ± 13	135 ± 15	0.463	<0.001
Nasal	66 ± 10	88 ± 13	0.249	<0.001	75 ± 16	89 ± 14	0.539	<0.001
Inferior	120 ± 16	143 ± 15	0.361	<0.001	125 ± 15	140 ± 15	0.600	<0.001
Sector 1	50 ± 9	59 ± 6	0.303	<0.001	59 ± 11	60 ± 6	0.542	0.520
Sector 2	77 ± 19	83 ± 13	0.588	0.005	86 ± 18	84 ± 12	0.692	0.231
Sector 3	126 ± 22	138 ± 27	0.636	<0.001	134 ± 24	138 ± 29	0.768	0.233
Sector 4	114 ± 25	140 ± 24	0.405	<0.001	113 ± 22	144 ± 21	0.404	<0.001
Sector 5	105 ± 17	119 ± 22	0.540	<0.001	108 ± 18	123 ± 23	0.594	<0.001
Sector 6	80 ± 17	110 ± 24	0.334	<0.001	91 ± 23	112 ± 24	0.570	<0.001
Sector 7	55 ± 10	78 ± 16	0.204	<0.001	63 ± 15	77 ± 15	0.486	<0.001
Sector 8	62 ± 11	77 ± 11	0.304	<0.001	70 ± 16	76 ± 12	0.593	0.001
Sector 9	96 ± 18	111 ± 16	0.469	<0.001	99 ± 18	111 ± 17	0.684	<0.001
Sector 10	135 ± 27	152 ± 25	0.603	<0.001	138 ± 28	147 ± 25	0.836	<0.001
Sector 11	130 ± 27	166 ± 23	0.375	<0.001	138 ± 26	162 ± 21	0.525	<0.001
Sector 12	64 ± 16	84 ± 15	0.420	<0.001	73 ± 16	86 ± 16	0.600	<0.001