Table 4.

Visual field of participants.

	SML group(n = 12)	Sham group(n = 12)	P (95% CI)*
VFI baseline 6 months ΔVFI	89.69 ± 8.48% 92.88 ± 4.60% 3.21 ± 4.87%	86.33 ± 9.84% 90.60 ± 7.93% 4.26 ± 11.11%	0.381(− 4.42,11.13) 0.398(− 3.21,7.77) 0.767(− 8.32,6.21)
MD (dB) baseline 6 months ΔMD	− 6.11 ± 2.83 − 4.94 ± 1.88 1.18 ± 1.88	− 7.55 ± 4.31 − 5.96 ± 3.79 1.59 ± 4.13	0.345(− 1.65,4.53) 0.411(− 1.51,3.56) 0.755(− 3.13,2.30)
PSD (dB) baseline 6 months ΔPSD	4.62 ± 1.94 3.44 ± 1.36 − 1.18 ± 1.38	4.50 ± 1.79 4.50 ± 1.74 − 0.00 ± 1.24	0.880(− 1.46,1.70) 0.110(− 2.38,0.26) 0.039(− 2.29, − 0.06)

* Two-sample t test was used.

VFI: Visual field index. MD: Mean deviation. PSD: Pattern standard deviation.