Visual impact of diffusion optic technology lenses for myopia control.

Area of Science:

• Ophthalmology
• Optometry
• Vision Science

Background:

• Myopia control strategies are crucial for preventing vision impairment in children.
• Diffusion Optics Technology™ (DOT) lenses utilize light-scattering elements to reduce retinal image contrast.
• Assessing the visual impact of novel myopia control lenses is essential for clinical adoption.

Purpose of the Study:

• To evaluate the visual performance of DOT spectacle lenses in primary gaze.
• To compare the visual experience of children wearing DOT lenses versus standard single vision lenses.
• To determine if DOT lenses impact visual acuity, contrast sensitivity, or other visual functions.

Main Methods:

• A randomized controlled trial involving 51 children (ages 10-14) wearing either DOT or single vision lenses for over 3 years.
• Comprehensive visual assessments included high- and low-contrast visual acuity, reading speed, contrast sensitivity, stereoacuity, and glare.
• Statistical power was set at 95% to detect significant differences between the lens groups.

Main Results:

• No statistically significant differences were observed in binocular distance high- and low-contrast visual acuity between DOT and single vision lenses.
• Contrast sensitivity, reading speed, and stereopsis were similar for both groups.
• A statistically significant but clinically small difference in halo radius was noted, remaining within non-inferiority bounds.

Conclusions:

• DOT lenses provide a clinically equivalent visual experience compared to standard single vision lenses.
• The visual impact of DOT lenses does not significantly differ from single vision lenses in primary gaze.
• DOT lenses represent a viable option for myopia control without compromising visual function.