Table 2.

Comparisons of OCTA parameters between HC with NMOSD participants.

Variable	SVC			DVC			IVC
	NMOSD	HC	P	NMOSD	HC	P	NMOSD	HC	P
FAZ-area (FA)	3.84 (1.74)	3.07 (1.06)	0.050	1.69 (0.49)	1.42 (0.52)	0.020	1.73 (0.55)	1.54 (0.59)	0.124
FAZ-circularity (FC)	0.70 (0.20)	0.71 (0.14)	0.685	0.94 (0.13)	0.99 (0.12)	0.079	0.92 (0.13)	0.92 (0.15)	0.954
FAZ-axial-ratio (FAR)	1.32 (0.80)	1.81 (0.63)	0.599	1.03 (0.20)	1.09 (0.13)	0.130	1.09 (0.18)	1.13 (0.14)	0.079
FAZ-roundness (FR)	44.16 (32.36)	36.06 (9.80)	0.106	41.69 (11.84)	37.67 (4.64)	0.340	38.46 (7.66)	36.15 (4.35)	0.025
FAZ-solidity (FS)	0.86 (0.06)	0.85 (0.06)	0.490	0.93 (0.03)	0.94 (0.04)	0.093	0.91 (0.04)	0.92 (0.05)	0.962
Direction-ratio	0.84(0.07)	0.83(0.06)	0.919	0.81 (0.04)	0.80 (0.04)	0.070	0.83 (0.07)	0.83 (0.05)	0.49
Direction-area	95386.17 (35612.57)	126975.41 (35612.57)	<0.001	194469.51 (65790.78)	253055.16 (60396.85)	<0.001	130898.89 (37292.13)	137133.29 (35682.46)	0.599
tortuosity	1.94 (0.36)	1.75 (0.28)	0.015	1.60 (0.20)	1.56 (0.18)	0.366	1.82 (0.29)	1.76 (0.30)	0.789
VAD	13.17(2.74)	15.50 (2.37)	<0.001	20.33 (5.18)	24.71 (5.16)	<0.001	15.97 (1.19)	16.58 (1.16)	0.462
VLD	4.71 (1.11)	5.71 (0.94)	<0.001	7.94 (2.04)	9.72 (1.92)	<0.001	5.97 (1.19)	6.22 (1.16)	0.497
FD	1.44 (0.05)	1.48 (0.04)	<0.001	1.55 (0.06)	1.59 (0.05)	0.001	1.49 (0.04)	1.50 (0.04)	0.557
B-num	114.76 (38.36)	142.18 (33.76)	0.002	191.81 (10.11)	240.26 (63.31)	0.001	138.07 (35.60)	146.06 (37.23)	0.762

The data with P value less than 0.05 as bold value, which generally means that the parameters they represent are significant.