One-year Efficacy of the Defocus Incorporated Multiple Segment Lens in Chinese Myopic Children

imageSIGNIFICANCE

These data demonstrate that defocus incorporated multiple segment (DIMS) lens reduces myopia progression in children during the first year of use.

PURPOSE

This study aimed to investigate the efficacy of DIMS myopia control spectacle lens in Chinese myopic children aged 6 to 15 years.

METHODS

This is a retrospective study of 1-year longitudinal data. A total of 180 Chinese myopic children were selected from patients at Zhongshan Ophthalmic Center, Sun Yat-sen University, from February 2018 to January 2021. One group consisted of 90 children aged 6 to 15 years, with spherical equivalent refraction −0.50 to −7.75 D (−3.82 ± 1.57 D) and fitted with the DIMS lens. The other group consisted of 90 children fitted with single-vision spectacle lenses and matched with the DIMS group for age, sex, refraction, and progression of myopia in the previous year. One-year myopia progression was measured retrospectively in two groups. Unpaired t test was used to compare the myopia progression between the DIMS group and the control group. Pearson correlation was used to explore the relationship between myopia progression, age, and baseline refraction.

RESULTS

After 1 year of DIMS lens wear, myopia progression was significantly lower in the DIMS group (−0.51 ± 0.50 vs. −0.85 ± 0.51 D, P