Table 2. Intra-visit repeatability and inter-visit reproducibility of retinal vessel density in healthy and POAG groups.

	Intra-visit repeatability ICC (lower-upper 95% CI)				Inter-visit reproducibility ICC (lower-upper 95% CI)
	Total subjects	Healthy subjects	POAG	P-valuea	Total subjects	Healthy subjects	POAG	P-valuea
Peripapillary RVD
Disc	0.967 (0.878–0.994)	0.944	0.987	0.664	0.975 (0.871–0.975)	0.949	0.990	0.842
pSuperior	0.890 (0.691–0.980)	0.821	0.937	0.165	0.986 (0.929–0.998)	0.865	0.995	0.265
pInferior	0.911 (0.789–0.989)	0.869	0.943	0.526	0.948 (0.737–0.994)	0.914	0.967	0.456
pNasal	0.895 (0.771–0.988)	0.910	0.854	0.409	0.974 (0.869–0.997)	0.940	0.984	0.833
pTemporal	0. 889 (0.740–0.982)	0.903	0.842	0.516	0.882 (0.704–0.987)	0.866	0.942	0.274
Macular RVD
Fovea	0.852 (0.699–0.968)	0.921	0.790	0.165	0.900 (0.797–0.989)	0.914	0.878	0.598
mSuperior	0.943(0.714–0.994)	0.908	0.967	0.855	0.755 (0.671–0.947)	0.714	0.827	0.206
mInferior	0.908 (0.689–0.980)	0.874	0.900	0.275	0.874 (0.746–0.986)	0.884	0.870	0.258
mNasal	0.907 (0.709–0.981)	0.914	0.899	0.627	0.911 (0.705–0.982)	0.963	0.853	0.408
mTemporal	0.833 (0.637–0.964)	0.842	0.935	0.478	0.935 (0.764–0.990)	0.958	0.914	0.511

^aAs analyzed by repeated-measures ANOVA between Healthy and POAG groups, respectively.

ICC, intraclass correlation coefficient; CI, coefficient interval; RVD, retinal vessel density.