Table 4.

Comparison of the macular vessel density among three groups.

	Control (n = 39)	POAG (n = 32)	PACG (n = 30)	p*	p**	p***
Central VD (%)	14.31 ± 5.40	14.16 ± 4.18	12.70 ± 5.00	0.990	0.413	0.435
Quadrant parafoveal VD (%)
Superior	47.23 ± 4.25	41.88 ± 6.28	43.07 ± 5.28	0.000	0.002	0.698
Nasal	46.05 ± 5.14	41.03 ± 5.41	42.00 ± 4.43	0.001	0.002	0.721
Inferior	47.92 ± 4.18	40.25 ± 6.70	43.63 ± 4.80	0.000	0.001	0.065
Temporal	46.13 ± 3.55	39.06 ± 5.57	42.00 ± 4.76	0.000	0.001	0.073

Values are presented as mean ± standard deviation unless otherwise indicated. *Comparison between the control and POAG groups (Games-Howell post-hoc test). **Comparison between the control and PACG groups (Games-Howell post-hoc test). ***Comparison between the POAG and PACG groups (Games-Howell post-hoc test). VD, vessel density; PACG, primary angle-closure glaucoma; POAG, primary open-angle glaucoma.