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

Area of Science:

• Ophthalmology
• Pediatric Ophthalmology
• Myopia Control

Background:

• Myopia, a common refractive error, poses a significant public health challenge globally.
• Effective myopia control strategies are crucial for preventing high myopia and associated ocular complications in children.
• Spectacle lenses offer a non-invasive approach to myopia management.

Purpose of the Study:

• To evaluate the efficacy of Defocus Incorporated Multiple Segment (DIMS) spectacle lenses in controlling myopia progression in Chinese children.
• To compare the myopia control effect of DIMS lenses versus single-vision lenses in a pediatric population.
• To investigate the influence of age on the efficacy of DIMS lenses for myopia management.

Main Methods:

• A retrospective analysis of 1-year longitudinal data from 180 Chinese myopic children (aged 6-15 years) was conducted.
• Participants were divided into two groups: one fitted with DIMS lenses and a control group with single-vision lenses, matched for age, sex, and refractive error.
• Myopia progression was measured retrospectively, and statistical analyses (unpaired t-test, Pearson correlation) were used to compare outcomes.

Main Results:

• Children wearing DIMS lenses exhibited significantly lower myopia progression (-0.51 D) compared to the control group (-0.85 D) after one year (P < .001).
• Myopia progression was positively correlated with age in both groups.
• The myopia control effect of DIMS lenses was more pronounced in older children (10-15 years) than in younger children (6-9 years).

Conclusions:

• The DIMS lens is an effective intervention for reducing myopia progression in children during the first year of wear.
• The efficacy of DIMS lenses in myopia control appears to increase with age.
• DIMS lenses represent a promising option for managing progressive myopia in pediatric populations.