Table 2. Summary of flux, vessel area density, and normalized flux between normal and glaucoma group.

Pre-lamina tissue	Normal (N=20)	Glaucoma (N=21)	P value
Flux	0.32±0.04 (0.30, 0.35)	0.25±0.07 (0.23, 0.28)	0.0002
Vessel area density	0.76±0.02 (0.74, 0.79)	0.70±0.06 (0.68, 0.72)	<0.0001
Normalized flux	0.36±0.04 (0.34, 0.38)	0.30±0.06 (0.28, 0.32)	0.0003

Data are presented as mean ± standard deviation. 95% confidence intervals are shown in the parentheses. All comparisons made using independent samples, 2-tailed t-test.