Table 3.

Factors associated with the percent changes in deep vessel density (VD) (N = 31).

	Univariate analysis			Multivariate analysis*
	B (95% CI)	β	P	B (95% CI)	β	P
Percent changes in intraocular pressure (IOP), per 1%	1.230 (− 0.305, 2.765)	0.291	0.11	2.839 (1.320, 4.358)	0.672	< 0.001
Preoperative superficial VD, per 1%	0.060 (0.017, 0.104)	0.465	0.008			NS
Preoperative deep VD, per 1%	− 0.069 (− 0.116, − 0.021)	− 0.482	0.006	− 0.092 (− 0.134, − 0.050)	− 0.647	< 0.001
Combined with cataract surgery (vs. single)	− 0.122 (− 0.483, 0.240)	− 0.127	0.50			NS
Preoperative IOP, per 1 mmHg	0.000 (− 0.052, 0.052)	0.0002	> 0.99	0.070 (0.021, 0.120)	0.515	0.007
Preoperative anti-glaucoma eye drops, no	0.077 (− 0.339, 0.493)	0.070	0.71			NS
Axial length, per 1 mm	0.096 (− 0.129, 0.321)	0.160	0.39			NS
Central corneal thickness, per 1 μm	− 0.008 (− 0.017, 0.002)	− 0.294	0.11			NS
Visual field mean deviation, per 1 dB	− 0.028 (− 0.088, 0.032)	− 0.173	0.35			NS

Percent changes in IOP = (postoperative IOP 6 months after the surgery − preoperative IOP)/preoperative IOP × 100.

Percent changes in deep VD = (postoperative deep VD − preoperative deep VD)/preoperative deep VD × 100.

B, unstandardized regression coefficient; β, standardized regression coefficient; CI, confidence interval; IOP, intraocular pressure; NS, not significant; VD, vessel density.

*Multiple stepwise regression analysis.

Significant values are in bold.