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Graphs showing axial growth over the 1‐year treatment in younger children (8–11 years of age) by subgroups with different baseline axial lengths (AL): Subgroup 1 (AL < 24.5 mm), subgroup 2 (24.5 ≤ AL < 26 mm) and subgroup 3 (AL ≥ 26 mm). Data are expressed as the mean ± SD. OK, orthokeratology, SP, spectacle wearers.
