From: Effects of orthokeratology on the progression of low to moderate myopia in Chinese children
Study (year) | Swarbrick HAet al. (2015) [19] | Meng-Jun Zhu et al. (2014) [9] | Jaime Paunéet al. (2015) [20] | Hiraortho-k a T et al. (2012) [21] | Lin HJ et al. (2014) [22] |
---|---|---|---|---|---|
Age (y) | 10.8–17.0 years | 7–14 years | 9–16 years | 8–12 years | 7–17years |
Race/ethnicity | East Asian | Chinese | Caucasian | Japanese | Chinese |
Duration of study | 1 year | 2 years | 2 years | 5 years | 3 years |
With control group | yes | yes | yes | yes | yes |
Control treatment | rigid gas-permeable (RGP) | spectacles refractive gradient (SRRG) | soft radial | spectacles | 0.125 % atropine |
Method of assignment | randomized | historic data | nonrandomized | randomized | self-selection |
Initial SER | −2.43 ± 0.98 | −4.29 ± 2.04 | −0.75 ± 0.25 | −1.89 ± 0.82 | −4.25 ± 1.5 |
(Ortho-k, D) | |||||
Initial SER (Control, D) | −2.39 ± 0.93 | −4.24 ± 2.38 | −0.76 ± 0.27 | −1.83 ± 1.06 | −4.0 ± 1.75 |
Increase in axial length in 1 y (Ortho-k, mm) | no change | 0.16 ± 0.17 | 0.15 ± 0.10 | 0.99 ± 0.47 | 0.28 ± 0.08 |
Increase in axial length in 1 y (Control, mm) | 0.09 ± 0.09 | 0.39 ± 0.21 | 0.26 ± 0.15 | 1.41 ± 0.68 | 0.38 ± 0.09 |
Reduction in myopia progression in 1 year | 100 % | 59 % | 42.3 % | 30 % | 26.3 % |