Table 1.

Demographic and biometric characteristics in glaucoma and healthy group

	Controls(n = 77)	POAG(n = 123)	Early-stage POAG(n = 73)	p*	p†
Age (years)	55.2 ± 8.8	56.8 ± 12	54.5 ± 11.5	0.064	0.962
Gender (Male/Female)	24/53	62/61	39/34	0.008	0.008
Refractive error (diopters)	-1.02 ± 1.92	-1.34 ± 2.37	-1.36 ± 2.31	0.571	0.654
Axial length (mm)	23.81 ± 0.96	24.04 ± 1.39	24.09 ± 1.33	0.4	0.143
Central corneal thickness (µm)	541.8 ± 34	535.8 ± 34.7	537.1 ± 34.6	0.227	0.397
Mean deviation (MD, dB)	-1.39 ± 1.03	-6.81 ± 4.88	-3.67 ± 1.53	< 0.001	< 0.001
Visual Field Index (VFI, %)	98.73 ± 1.14	84.41 ± 14.53	93.1 ± 4.26	< 0.001	< 0.001
Intraocular pressure (IOP, mmHg)	14.6 ± 2.9	15.3 ± 2.8	15.4 ± 2.8	0.241	0.219
BMO area	2.36 ± 0.47	2.38 ± 0.46	2.44 ± 0.47	0.741	0.27
Total disc area	2.4 ± 0.54	2.41 ± 0.53	2.46 ± 0.5	0.876	0.379

POAG primary open-angle glaucoma, MD mean deviation, VFI visual field index, IOP intraocular pressure, BMO Bruch’s membrane opening

p* represent for comparison between controls and POAG, p† represent for comparison between controls and early-stage POAG