Novel spectacle lens effectively reduces myopia progression in children
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Key takeaways:
- At 12 months, axial length and spherical equivalent refraction progression slowed by 0.11 mm and 0.16 D in the treatment group.
- The visual experience was reportedly similar between treatment and control groups.
The novel Shamir Myopia Control spectacles slowed progression of axial length and spherical equivalent refraction in children, especially those younger than 10 years, compared with single-vision spectacle lenses, according to research.
“The goal of our study is to evaluate these newly designed spectacle lenses produced by Shamir and compare their effect with [single-vision spectacle lenses] in slowing down the progression of myopia and axial elongation, as well as in visual comfort and compliance in children,” researchers in Israel wrote in the American Journal of Ophthalmology.
They enrolled 126 children aged 6 to 13 years with spherical equivalent refractive (SER) errors of –0.50 to –6.25 D, and randomized participants to the Shamir Myopia Control (SMC) lens group or the single-vision spectacle lens (SVL) control group. Participants also were asked to complete a subjective visual experience questionnaire over 12 months.
According to results, progression of axial length slowed by 0.11 mm in the SMC group, as did SER by 0.16 D, compared with the SVL group at 12 months. In children aged 6 to 10 years, axial length and SER progression slowed by 0.17 mm and 0.31 D, respectively, with similar results reported in children with two myopic parents (0.15 mm and 0.36 D).
Further, results of the questionnaire indicated no statistically significant differences between the SMC and SVL groups in subjectively reported visual comfort, lens appearance or total time the spectacles were worn each day.
“Although this report is limited to only the first year of a 2-year study, we have found that the use of the SMC lens caused a statistically significant reduction in axial length progression in the entire SMC group,” the study authors wrote. “Additionally, there was a statistically significant reduction in [axial length] and spherical equivalent refraction progression among children younger than 10 years and those with two myopic parents.”
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