TABLE 2.

Reproducibility of RTVue Retinal Nerve Fiber Layer Thickness Measurements in Healthy Participants and Glaucoma Patients

RNFL Parameters	Healthy Participants				Glaucoma Patients
	Mean (95% CI)	Sw ± 1.96 se	CV %	ICC (95% CI)	Mean (95% CI)	Sw ± 1.96 se	CV %	ICC (95% CI)
TEMP (µm)	80.6 (77.4 to 83.8)	2.82 ± 0.52	3.54	0.92 (0.88 to 0.95)	71.2 (68.7 to 73.8)	3.36 ± 0.7	4.72	0.86 (0.81 to 0.91)
SUP (µm)	120.6 (117 to 124.3)	3.8 ± 0.57	3.16	0.91 (0.86 to 0.94)	103.2 (99.6 to 106.8)	3.67 ± 0.59	3.53	0.93 (0.89 to 0.95)
NAS (µm)	75.8 (72.9 to 78.7)	2.94 ± 0.44	3.88	0.91 (0.86 to 0.94)	68.6 (66.2 to 71.1)	3.22 ± 0.52	4.6	0.88 (0.83 to 0.92)
INF (µm)	134.3 (129.7 to 138.9)	3.53 ± 0.55	2.65	0.95 (0.92 to 0.97)	113.2 (108.9 to 117.4)	3.21 ± 0.48	2.87	0.96 (0.94 to 0.97)
AVG (µm)	102.8 (100.1 to 105.6)	1.57 ± 0.27	1.54	0.97 (0.95 to 0.98)	89.1 (86.5 to 91.7)	1.69 ± 0.23	1.9	0.97 (0.96 to 0.98)

AVG = average quadrant; CI = confidence interval; CV = coefficient of variation; ICC = intraclass correlation coefficient; INF = inferior quadrant; NAS = nasal quadrant; SUP = superior quadrant; Sw = within-subjects standard deviation; RNFL = retinal nerve fiber layer; TEMP = temporal quadrant.

Reproducibility is expressed as the Sw, the ICC, and the CV. Sw is defined as the square root of the within-subject variance (defined as the within-subjects sum of squares divided by its degrees of freedom). CV is calculated as the square root of the residual mean squared values of 3 measures, divided by mean.