From: Effects of orthokeratology on the progression of low to moderate myopia in Chinese children
Ortho-k | Control | |
---|---|---|
Before wearing the lens(mm) | 24.71 ± 0.72 | 24.82 ± 0.77 |
After 1 year(mm) | 24.98 ± 0.70 | 25.20 ± 0.78 |
Axial elongation(mm) | 0.27 ± 0.17 | 0.38 ± 0.13 |
P-value | P < 0.01 | P < 0.01 |