Table 1.

Clinical features, visual field parameters and optical coherence tomography (OCT) measurements of the patients with primary angle closure glaucoma (46 eyes, 31 patients).

	Mean ± SD	Range
Age (years)	68.9 ± 9.4	48 to 84
Gender (male:female)	19:12
Hypertension (n, %)	13 (41.9%)
Diabetes mellitus (n, %)	13 (41.9%)
Intraocular pressure
Mean during follow-up (mm Hg)	15.2 ± 3.0	9.2 to 21.5
Fluctuation (SD) during follow-up (mm Hg)	2.8 ± 1.4	0.8 to 8.1
At the scanning visit (mm Hg)	14.2 ± 3.3	8 to 20
No. of glaucoma medications at OCTA visit	1.8 ±1.1	0 to 4
Central corneal thickness (μm)	521 ± 43	418 to 588
Follow-up duration (years)	5.2 ±2.2	3.1 to 9.7
Baseline mean deviation (dB)	−7.4 ± 7.3	−25.8 to 1.3
Baseline visual field index (%)	85 ± 17	41 to 100
Mean deviation slope (dB/year)	−0.32 ± 0.29	−1.12 to 0.48
Peripapillary RNFL thickness (μm)	77.9 ± 15.9	42 to 97
Average GCC thickness (μm)	77.3 ± 14.2	51 to 105
OCTA vessel density measurement
Whole enface disc (%), n=33 eyes	39.5 ± 8.1	24.8 to 53.0
Peripapillary (%)	47.6 ± 10.4	28.5 to 68.4
Whole enface macula (%), n=38 eyes	38.7 ± 4.4	29.4 to 47.5
Parafoveal (%)	40.9 ± 4.2	32.9 to 48.3
Choroidal microvascular dropout (n, %)	14/42 (33.3%)

dB: decibel; VF: visual field; RNFL: retinal nerve fiber layer; GCC: ganglion cell complex; OCTA: optical coherence tomography angiography.