Table 4.

CLVQOL scale scores before intervention, 6 and 12 months after intervention in two groups (‾x ± s, points)

Norm	Period of intervention	Groups	n	x ± s, points (95% CI)	t	P
Distant vision, movement and light perception	Before intervention	Control group	104	25.68 ± 2.13	0.285	0.776
		Research group	104	25.59 ± 2.42
	Intervention for 6 months	Control group	104	29.45 ± 3.81*	3.187	0.002
		Research group	104	31.19 ± 4.06*
	Intervention for 12 months	Control group	104	32.18 ± 4.16*#	5.391	0
		Research group	104	35.59 ± 4.93*#
Regulatory ability	Before intervention	Control group	104	5.19 ± 1.33	1.25	0.213
		Research group	104	5.40 ± 1.08
	Intervention for 6 months	Control group	104	8.10 ± 2.10*	3.276	0.001
		Research group	104	9.11 ± 2.34*
	Intervention for 12 months	Control group	104	9.96 ± 2.67*#	3.185	0.002
		Research group	104	11.24 ± 3.11*#
Reading and fine work	Before intervention	Control group	104	7.68 ± 2.11	0.778	0.438
		Research group	104	7.93 ± 2.51
	Intervention for 6 months	Control group	104	10.67 ± 3.59*	3.131	0.002
		Research group	104	12.28 ± 3.82*
	Intervention for 12 months	Control group	104	12.44 ± 4.16*#	2.257	0.025
		Research group	104	13.89 ± 5.06*#
Daily living ability	Before intervention	Control group	104	6.18 ± 1.36	0.490	0.625
		Research group	104	6.27 ± 1.29
	Intervention for 6 months	Control group	104	9.67 ± 2.16*	4.837	0
		Research group	104	11.37 ± 2.86*
	Intervention for 12 months	Control group	104	13.48 ± 3.25*#	2.327	0.021
		Research group	104	14.64 ± 3.91*#

Note:# Compared with this group after 6 months of intervention, P < 0.05; * Compared with before intervention in this group, P < 0.05; CLVQOL: Low vision quality of life scale. A 95% CI indicates that there is a 95% probability that the estimate will fall within that interval in repeated sampling