Changes in Flow Density Measured Using Optical Coherence Tomography Angiography after iStent Insertion in Combination with Phacoemulsification in Patients with Open-Angle Glaucoma

Table 2

Characteristics of the study population in the cataract group and values of flow density obtained in the indicated regions before and after surgery. Bold: statistically significant differences.

(a)

Cataract group
N	24
Age (years)	72.79 ± 8.88
Gender (female : male)	14 : 10

(b)

	Before surgery mean ± SD	After surgery mean ± SD	value
IOP	17.14 ± 2.36	15.10 ± 2.74	0.003
OCTA—superficial
Flow density (whole en face)	46.22 ± 2.49	47.05 ± 2.59	0.200
Flow density (fovea)	28.18 ± 5.45	28.57 ± 4.87	0.740
Flow density (parafovea)	48.63 ± 2.56	49.07 ± 3.05	0.576
OCTA—deep
Flow density (whole en face)	53.08 ± 2.42	54.20 ± 2.28	0.099
Flow density (fovea)	29.45 ± 6.78	31.15 ± 6.64	0.333
Flow density (parafovea)	55.99 ± 2.63	56.30 ± 3.62	0.668
OCTA—RPC
Flow density (whole en face)	50.16 ± 4.81	50.04 ± 4.58	0.827
Flow density (inside disc)	39.95 ± 9.89	40.77 ± 9.39	0.294
Flow density (peripapillary)	58.73 ± 6.16	57.90 ± 5.73	0.228