Novel application of multispectral refraction topography in the observation of myopic control effect by orthokeratology lens in adolescents

Table 1 Gender composition ratio of patients in groups A and B

Patients with	Group	Gender		Total	χ2	P value1
		Male	Female
Low myopia	Group A	16	25	41	0.031	0.860
	Group B	22	37	59
Moderate myopia	Group A	29	54	83	4.718	0.030
	Group B	29	25	54

¹Statistic analysis was performed with the χ² test. Group A: Myopia patients wearing orthokeratology lenses for 1 year; Group B: Myopia patients wearing frame glasses.

Table 2 Age composition ratio of patients in groups A and B

Patients with	Group	Number of eyes	Mean value of ages1	Z	P value2
Low myopia	Group A	41	10.95 ± 1.84	-1.620	0.105
	Group B	59	10.27 ± 2.15
Moderate myopia	Group A	83	11.95 ± 2.48	-1.665	0.096
	Group B	54	11.22 ± 2.16

¹mean value ± SD.

²Statistic analysis was performed with non-parametric Mann-Whitney test. Group A: Myopia patients wearing orthokeratology lenses for 1 year; Group B: Myopia patients wearing frame glasses.