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August 21, 2025BMC OphthalmologyOpen Access

Orthokeratology for myopia control: a three-year longitudinal study on axial length modulation influenced by baseline age and spherical equivalent

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Retrospective cohort study assesses axial length modulation in children, revealing age and myopia level influence on treatment efficacy.

Myopia control significantly improved in children over three years, particularly with higher baseline myopia and older age.
Participants with baseline spherical equivalent ≤ -3.00D showed 85.95% excellent AL response in the first year, significantly outperforming other groups.
A longitudinal assessment among 1,303 children demonstrated that age and spherical equivalent affected over three years of axial length control.
Results suggest older children with higher myopia benefit most from ortho-k, indicating a need for additional therapies for younger, low myopia kids.

Hu et al. (2025) studied this question.

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