Visual Performance of Defocus Incorporated Multiple Segments With Triple Enhanced Design Spectacle Lenses Versus DIMS...

Area of Science:

• Ophthalmology
• Optometry
• Pediatric Vision

Background:

• Myopia is a growing concern in children.
• Spectacle lenses designed to control myopia progression are under investigation.
• Defocus Incorporated Multiple Segment (DIMS) and DIMS with Triple Enhanced Design (DIMS TED) lenses are novel myopia control options.

Purpose of the Study:

• To compare short-term visual function changes in myopic children wearing DIMS, DIMS TED, and single-vision (SV) spectacle lenses.
• To evaluate the impact of different spectacle lens designs on visual acuity, binocular function, and accommodation.

Main Methods:

• Thirty-eight myopic children (6-13 years) participated in a randomized trial.
• Participants wore DIMS, DIMS TED, and SV lenses for one week each.
• Visual functions including distance/near visual acuity (VA), binocularity, and accommodation were assessed.

Main Results:

• Central visual acuity was largely unaffected by DIMS and DIMS TED lenses compared to SV lenses.
• Minor reductions in low-contrast near VA and mid-peripheral VA were observed with DIMS and DIMS TED, but were not clinically significant.
• Most children adapted well to the DIMS TED spectacle lenses.

Conclusions:

• DIMS TED spectacle lenses demonstrated comparable visual performance to DIMS and SV lenses.
• The enhanced design of DIMS TED lenses maintains visual performance and may enhance myopia control efficacy.