BMC Ophthalmology

Table 3 Comparison of naked-eye vision

From: Effect of short-term orthokeratology lens or ordinary frame glasses wear on corneal thickness, corneal endothelial cells and vision correction in adolescents with low to moderate myopia

Group	Control group (n = 94)	Experimental group (n = 106)	t	p
Before treatment	0.26 ± 0.04	0.25 ± 0.05	1.569	0.118
The 3rd month	0.25 ± 0.05^a	0.56 ± 0.15^a	20.063	0.000
The 6th month	0.23 ± 0.05^ab	0.64 ± 0.12^ab	32.176	0.000
The 12th month	0.20 ± 0.04^abc	0.92 ± 0.07^abc	90.548	0.000

Compared with before treatment, ^ap < 0.01; compared with the 3rd month, ^bp < 0.01; compared with the 6th month, ^cp < 0.01

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