Table 3.

The clinical characteristics of eyes with FEVR and control eyes.

Parameters			FEVR(95%CI)	Control(95%CI)	p Value
Retinal artery angle	N		124	76	–
	Age (years)		23.3 ± 16.4	21.3 ± 12.6	0.522
	Angle (°)		90.30 ± 19.46	122.10 ± 13.34	<0.001*
			(86.85–93.76)	(119.06–125.15)
Macular structure	N		108	76	–
	Age (years)		21.9 ± 17.8	21.3 ± 12.6	0.840
	With FH/All (%)		48/108(44.4%)	3/76(3.9%)	<0.001*
	CMT		259.54 ± 56.66	248.41 ± 15.31	0.399
			(247.99–271.08)	(244.91–251.91)
	IRT		12.47 ± 21.70	0.78 ± 4.09	<0.001*
			(7.30–16.03)	(0.16–1.71)
OCTA	N		70	76	–
	Age (years)		25.6 ± 18.8	21.3 ± 12.6	0.334
	FAZ	Area (mm2)	0.27 ± 0.13	0.27 ± 0.09	0.724
			(0.24–0.30)	(0.25–0.29)
		Perimeter (mm)	2.08 ± 0.55	2.06 ± 0.38	0.782
			(1.95–2.21)	(1.97–2.15)
		AI	1.18 ± 0.14	1.13 ± 0.04	<0.001*
			(1.15-1.21)	(1.12-1.14）
		FD-300(%)	48.50 ± 6.74	51.42 ± 3.82	0.001*
			(46.87–50.13)	(50.55–52.29)
	Whole image VD (%)	SCP	46.75 ± 4.58	48.17 ± 2.11	0.020*
			(45.65–47.84)	(47.69–48.65)
		DCP	47.53 ± 5.44	52.51 ± 3.00	<0.001*
			(46.23–48.82)	(51.83–53.20)
	Foveal VD (%)	SCP	22.66 ± 9.60	20.97 ± 5.49	0.721
			(20.37–24.95)	(19.72–22.23)
		DCP	34.48 ± 8.61	35.38 ± 6.55	0.479
			(32.43–36.53)	(33.88–36.87)
	Parafoveal VD (%)	SCP	49.12 ± 4.74	50.80 ± 2.52	0.009*
			(47.99–50.25)	(50.22–51.37)
		DCP	49.39 ± 6.10	54.66 ± 3.16	<0.001*
			(47.94–50.84)	(53.94–55.38)

*p < 0.05.

N: number of eyes; FH: foveal hypoplasia; CMT: centre macular thickness; IRT: inner retinal thickness; FAZ: foveal avascular zone; AI: acircularity index; FD-300: the foveal vessel density in a 300-μm-wide region around FAZ; VD: vascular density; SCP: superficial capillary plexus; DCP: deep capillary plexus.