OBJECTIVE: To examine the myopia control efficacy, in terms of axial elongation, of a new myopia control spectacle lenses with Dual-Index Aspherical Lenslets (DIAL) embedded within the lens, compared with single-vision spectacle lenses (SVLs) over a 1-year period. DESIGN: A prospective, randomized, double-masked clinical trial. PARTICIPANTS: Eighty children aged 8 to 13 years with myopia (spherical equivalent refraction [SER] between -0.75 and -4.75 diopters [D]) were recruited. INTERVENTION: Participants were randomized to either the DIAL or SVL spectacle lenses group (1:1 ratio). MAIN OUTCOME MEASURES: Axial length (AL), noncycloplegic subjective refraction, and best-corrected visual acuity (BCVA) were measured at baseline and 6-month intervals. Questionnaires on adaptation and compliance were administered during all visits. RESULTS: A total of 76 (N = 38 in each group) participants (mean [standard deviation] age, 10.8 [1.6] years) completed the 1-year visit. Mean (± standard error) 1-year AL change in the DIAL and SVL groups was 0.04 ± 0.02 and 0.22 ± 0.04 mm, respectively. A mean difference of -0.18 mm (95% confidence interval [CI], -0.26 to -0.10 mm
CONCLUSIONS: Dual-Index Aspherical Lenslets spectacle lenses showed good myopia control efficacy, in terms of axial elongation, compared with SVL, among children aged 8 to 13 years in Singapore. FINANCIAL DISCLOSURES: Proprietary or commercial disclosures may be found in the Footnotes and Disclosures at the end of this article.