Defocus-Incorporated Multiple-Segment (DIMS) Spectacle Lenses Versus Single-Vision Lenses for Myopia Control in a...

Area of Science:

• Ophthalmology
• Optometry
• Pediatric Eye Care

Background:

• Myopia is a global refractive error epidemic, increasing risks for severe ocular complications like maculopathy and retinal detachment.
• Effective myopia management strategies are crucial to mitigate long-term visual impairment.
• This study evaluates defocus-incorporated multi-segment (DIMS) spectacle lenses against single-vision (SV) lenses for myopia control.

Purpose of the Study:

• To compare the efficacy of DIMS spectacle lenses versus SV lenses in managing myopia progression in children.
• To assess the impact of DIMS lenses on refractive error changes over a 12-month period.

Main Methods:

• A cohort of 201 children (ages 7-17) was divided into DIMS (104 patients) and SV (97 patients) groups.
• Comprehensive ophthalmological examinations were performed, including visual acuity, cycloplegic refraction (SER), and ocular biometry.
• Spherical Equivalent (SER) progression was monitored over a 12-month follow-up period.

Main Results:

• Children using DIMS lenses showed significantly slower myopia progression (-0.29 D/year) compared to those using SV lenses (-0.58 D/year) (p < 0.001).
• Multiple regression analysis indicated that lens type, age at diagnosis, and baseline SER significantly influenced myopia progression.
• No significant effect of sex or baseline axial length on SER change was observed.

Conclusions:

• Defocus-incorporated multi-segment (DIMS) spectacle lenses represent an effective treatment option for myopia management.
• The findings support the use of DIMS lenses, particularly in Caucasian children, to control myopia progression.