Table 1 The characteristics of included RCTs
From: Orthokeratology in controlling myopia of children: a meta-analysis of randomized controlled trials
RCT | Country | Sample size | Number of eyes | Age(years) | Criteria | Type of orthokeratology | Wearing method | Duration of follow-up(year) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | Â | Orthokeratology group | Control group | Orthokeratology group | Control group | Â | Â | Â | Â | Â | ||||||
Bian 2020 | China | 100 | 100 | 100 | 100 | 8 ~ 14 | Diopter: -0.75~-5.00D; Cis return astigmatism < 1.50D | IV-DF Dream David | Night wear | 1 | ||||||
Charm 2013 | China | 12 | 16 | 24 | 32 | 8 ~ 16 | SEQ refraction at least − 5.75 diopters (D) and myopia − 5.00 D | NA | NA | 1 | ||||||
Cho 2012 | South Korea | 37 | 41 | 74 | 82 | 6 ~ 10 | Myopia degree: 0.50 ~ 4.00D; Astigmatism < 1.50D | NA | NA | 2 |  | |||||
Dong 2013 | China | 123 | 123 | 236 | 246 | 8 ~ 15 | Sphere scope: -0.75~-6.00 DS; Range of column mirror − 0.50~-1.50DC | Dream David | Night wear | 2 |  | |||||
Jiang 2014 | China | 50 | 45 | 90 | 90 | 8 ~ 15 | Spherical degree 0~-6.00 ODS; Cis return astigmatism 0~-1.50 DC | Hengtai | NA | 3 |  | |||||
Jiang 2018 | China | 43 | 40 | 86 | 80 | 8 ~ 14 | SEQ lens diopter: -0.15 ~ − 5.00 D; Range of cis return astigmatism < 150 D | Hengtai | Night wear | 2 |  | |||||
Li 2016 | China | 48 | 48 | 96 | 96 | 8 ~ 18 | Diopter: -0.15D~-6.00D; Conforming astigmatism < 1.50 D | NA | NA | 1 |  | |||||
Li 2020 | China | 75 | 75 | 150 | 150 | 12 ~ 18 | Diopter: -2.00~-4.30 DS, − 0.50~-1.00 DC | Dream David | Night wear | 1 |  | |||||
Liu 2018 | USA | 60 | 60 | 60 | 60 | 7 ~ 12 | Diopter: − 3.50~-6.00 D; Astigmatism<-1.50D | Jingshi Optics | Night wear | 1 |  | |||||
Lv 2019 | China | 60 | 62 | 60 | 62 | 6–15 | Diopter: − 2.00~-5.0D; Astigmatism<-2.50D | Dream David | Night wear | 1 |  | |||||
Tang 2020 | China | 60 | 60 | 98 | 93 | 8 ~ 16 | SEQ: − 1.50~- 6.00 D; Degree of column mirror < 1.0 0 D | NA | Night wear | 1 |  | |||||
Zhang 2017 | China | 80 | 80 | 160 | 160 | 12 ~ 18 | Diopter: 1.00 ~ 5.00; Column mirror range ≤ -1.50 D | NA | Night wear | 2 |  | |||||
Zhou 2016 | China | 167 | 233 | 334 | 466 | 9 ~ 15 | Astigmatism<-1.50 DC; SEQ: -2.75 ~ 5.60 DS | Euclid | NA | 2 |  | |||||
Zhu 2014 | China | 80 | 80 | 160 | 160 | 12 ~ 18 | Diopter: -1.00~-4.00 DS, < 1.00 DC | NA | NA | 1 |  | |||||