Table 2.

OCT and OCT-A parameters in the macular retina in affected eyes of NAION.

Affected		Baseline (n = 21)	1∼2 w (n = 21)	1∼2 m (n = 21)	3∼6 m (n = 13)	p a value
GCC (μm) ($\overline{\chi }\pm s$)	wGCC	103.67 ± 6.95	99.48 ± 7.69	89.24 ± 6.66	80.62 ± 8.62	≤0.001∗
	sGCC	102.67 ± 7.91	95.52 ± 8.80	84.62 ± 7.72	74.62 ± 9.46	≤0.001∗
	iGCC	104.62 ± 7.34	103.48 ± 8.80	93.85 ± 7.72	86.54 ± 10.37	≤0.001∗
	p si value	0.114	0.001∗	≤0.001∗	0.002∗	—
SVD (%) ($\overline{\chi }\pm s$)	wSVD	46.07 ± 2.09	43.70 ± 2.39	41.10 ± 2.63	37.16 ± 3.77	≤0.001∗
	sSVD	46.19 ± 2.16	43.91 ± 2.43	40.32 ± 3.12	36.92 ± 3.89	≤0.001∗
	iSVD	45.89 ± 2.30	43.63 ± 2.73	41.75 ± 2.47	36.88 ± 4.06	≤0.001∗
	wDVD	45.82 ± 2.96	45.37 ± 3.68	46.99 ± 2.39	47.44 ± 3.35	0.075
	p si value	0.149	0.626	0.010∗	0.807	—
Unaffected		(n = 19)	(n = 19)	(n = 19)	(n = 13)	p a value
	wGCC	106.68 ± 7.61	107.58 ± 6.63	106.79 ± 7.22	106.92 ± 7.51	0.971
	wSVD	45.49 ± 1.97	45.52 ± 1.87	45.44 ± 1.89	45.41 ± 1.67	0.999
	wDVD	47.60 ± 3.20	47.64 ± 2.89	47.67 ± 3.02	46.94 ± 2.66	0.876
	p b value	0.304	0.002∗	≤0.001∗	≤0.001∗	—
	P c value	0.444	0.008∗	≤0.001∗	≤0.001∗	—
	P d value	0.121	0.044∗	0.673	0.600	—

NAION, nonarteritic anterior ischemic optic neuropathy. wGCC (μm), average ganglion cell complex thickness. wSVD (%), average superficial vessel density. wDVD (%), average deep vessel density. s/iGCC (μm), superior- and inferior-hemi thickness of macular ganglion cell complex. s/iSVD (%), s/iDVD(%), superior- and inferior-hemi values of superficial and deep vessel density. p^si, p value for comparison of superior- and inferior-hemi values using the Wilcoxon test. p^a, p value obtained using the nonparametric Kruskal–Wallis test for evaluating the overall differences among four intervals. p^b/p^c/p^d, p values for comparison of wGCC/wSVD/wDVD values in affected subjects versus unaffected eyes using the Wilcoxon test. ^∗p value<0.05 was considered statistically significant.