Table 2.

Comparison of the optical coherence tomography angiography (OCT-A)-derived circumpapillary vessel density values between the primary open angle glaucoma subjects with and without a focal lamina cribrosa (LC) defect in global area and in eight 45 degrees sectors.

		Eyes with Focal LC Defect (41 eyes, 41 patients)	Eyes without Focal LC Defect (41 eyes, 41 patients)	P-value
	N*	OCT-A parameters (%)	OCT-A parameters (%)
Global area	-	52.9±5.6 (42.4 to 63.1)	56.8±7.7 (35.4 to 71.5)	0.013†
Upper temporal	0	57.1±9.9 (32.9 to 72.6)	60.0±9.9 (38.0 to 73.4)	0.107‡
Upper nasal	0	50.9±6.9 (33.6 to 62.5)	54.1±9.2 (31.9 to 71.4)	0.077†
Lower nasal	0	52.7±6.9 (36.4 to 63.3)	52.7±6.9 (32.3 to 66.9)	0.383†
Lower temporal	0	54.2±9.3 (34.8 to 70.9)	57.1±9.4 (29.7 to 74.8)	0.155†
Superotemporal	19	54.3±8.8 (33.7 to 69.7)	58.8±9.6 (33.8 to 73.1)	0.030†
Superonasal	1	53.5±6.7 (40.3 to 65.8)	55.9±7.9 (30.2 to 70.4)	0.133†
Inferonasal	1	52.4±9.0 (33.2 to 66.7)	57.6±9.1 (32.3 to 74.1)	0.009†
Inferotemporal	33	49.5±10.3 (28.0 to 66.8)	56.8±12.2 (31.8 to 76.0)	0.004†

Continuous variables are shown in mean ± standard deviation (range).

^*N = number of eyes with focal LC defects in each of eight 45 degree sectors.

^†The comparison of the OCT-A parameters was performed between eyes with and without a focal LC defect by using independent samples t-test.

^‡The comparison of the OCT-A parameters was performed between eyes with and without a focal LC defect by using Mann-Whitney test.

Significant values are in bold type.