Efficacy and Acceptability of Orthokeratology for Slowing Myopic Progression in Children: A Systematic Review and Meta-Analysis

Table 2

Efficacy (mean AL change) and acceptability (dropout rate) in each study at 2-year follow-up.

	Mean AL change (mm)		Dropout rate (dropouts/total)
	Treatment group	Control group	Treatment group	Control group
Cho et al. [16]	0.29 ± 0.27	0.54 ± 0.27	8/43	NA
Walline et al. [17]	0.25 ± 0.27^a	0.57 ± 0.40^a	12/40	NA
Kakita et al. [18]	0.39 ± 0.27	0.61 ± 0.24	3/45	10/60
Cho and Cheung [19]	0.36 ± 0.24	0.63 ± 0.26	14/51	10/51
Hiraoka et al. [20]	0.45 ± 0.21	0.71 ± 0.40	7/29	9/30
Santodomingo-Rubido et al. [21, 24]	0.47 ± 0.20^b	0.69 ± 0.30^b	2/31	6/30
Charm and Cho [22]	0.19 ± 0.21	0.51 ± 0.32	14/26	10/26
Chen et al. [23]	0.31 ± 0.27	0.64 ± 0.31	8/43	14/37

AL = axial length; NA = not available.
a used the highest sd value of other studies with the same follow-up period.
b derived from standard error in combination with GetData Graph Digitizer 2.24 (http://getdata-graph-digitizer.com/).