DIMS spectacle lenses noninferior to orthokeratology for slowing myopia progression in children
Defocus Incorporated Multiple Segments (DIMS) spectacle lenses were noninferior to orthokeratology lenses (OKL) for slowing axial elongation in myopic children after 18 months of treatment, according to a study.
The randomized clinical trial included 90 children aged 6 to 12 years who were randomized to DIMS spectacle lenses (n = 45) or OKL (n = 45). The primary outcome was axial length growth after 18 months. The adjusted between-group difference in axial elongation was −0.05 mm (95% CI, −0.13 to 0.04), which met the prespecified noninferiority margin.
Defocus Incorporated Multiple Segments lenses were not superior to OKL. Overall eye length elongation also did not differ significantly between groups, with a between-group difference of −0.04 mm (95% CI, −0.12 to 0.04). One adverse event was reported in the OKL group.
Reference
Andersen LC, Mejldal A, Sivakumar S, et al. Defocus incorporated multiple segment spectacle lenses versus orthokeratology lenses for myopia control: a non-inferiority randomised clinical trial. BMC Ophthalmol. 2026;26(1):488. doi: 10.1186/s12886-026-05144-6. PMID: 42595991; PMCID: PMC13471525.
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