Factors Associated with Midterm Visual Field Variability in Patients with Stable Glaucoma

Table 1

Demographic and clinical ophthalmological characteristics in group 1 and group 2.

	Group 1 (N = 20)	Group 2 (N = 19)	value
Age, years^a	65.5 ± 10.3	66.1 ± 9.9	0.855^c
Gender, %			0.152^e
Female	13 (62%)	8 (38%)
Male	7 (39%)	11 (61%)
Ancestry, %			0.136^e
African	0 (0%)	2 (11%)
MD SAP, dB^b	−1.11 (0.00 to −1.84)	−5.01 (−1.90 to −25.23)	<0.001^d
Final coefficient of variability^b	1.11 (0.00 to 1.84)	5.01 (1.90 to 25.23)	<0.001^d
Number of visual fields	8.48 ± 1.90	8.60 ± 1.83	0.810^c
Average IOP, mmHg^a	13.45 ± 3.00	12.20 ± 2.62	0.094^c
VFI, %^b	95.93 (74–100)	84.53 (55–99)	<0.001^d
CCT, µm^a	507.48 ± 38.65	508.32 ± 38.04	0.936^c
Spherical equivalent^a	−0.30 ± 1.89	−0.26 ± 1.47	0.933^c
BCVA, logMAR^a	0.08 ± 0.15	0.11 ± 0.13	0.385^c
Number of medication	1.62 ± 0.78	1.30 ± 0.88	0.143^c
Follow-up time	5.6 ± 1.23	5.0 ± 1.53	0.184^c
Level of damage, % (advanced)	1 (5%)	6 (32%)	0.022^e
Central scotoma, % (yes)	2 (10%)	16 (84%)	0.002^e
Type of glaucoma, % (POAG)	12 (60%)	17 (90%)	0.200^e
Pseudophakic, % (yes)	9 (45%)	7 (37%)	0.081^e
Educational level, % (at least high school degree)^a	20 (100%)	18 (95%)	0.524^e

MD = mean deviation; dB = decibels; IOP = intraocular pressure; VFI = visual field index; CCT = central cornea thickness; and BCVA = best-corrected visual acuity. ^aMean ± SD. ^bMean (range). ^ct-test. ^dWilcoxon rank-sum test. ^ePearson’s chi-squared test.