Visual impact of diffusion optic technology lenses for myopia control

Abstract

Purpose: To assess the visual impact of Diffusion Optics Technology™ 0.2 DOT lenses (SightGlass Vision Inc.) designed for myopia control on primary gaze. DOT spectacle lenses contain light scattering elements that scatter light as it passes through the lens which, in turn, reduces retinal image contrast. Methods: Fifty-one children (12.2 ± 1.3, range 10–14 years; 51% females) were randomly assigned to wear DOT spectacle (n = 27) or single vision lenses (n = 24) across six investigational sites in North America. Binocular high- and low-contrast distant visual acuities, near visual acuity, reading speed, contrast sensitivity, stereoacuity and glare were assessed in primary gaze after at least 3 years of wear, with the study 95% powered in all metrics to detect significant differences between the groups. Results: Mean binocular distance high-contrast (−0.09 ± 0.02 vs. −0.08 ± 0.02 logMAR, p = 0.81), low-contrast (0.05 ± 0.02 vs. 0.07 ± 0.02 logMAR, p = 0.52) and near visual acuity with glare sources (−0.06 ± 0.03 vs. −0.09 ± 0.03 logMAR, p = 0.32) were similar for DOT and single vision lens wearers, respectively. Contrast sensitivity was similar between children wearing DOT or single vision lenses across 11 of the 16 spatial frequencies (p > 0.05). Mean stereopsis was similar (p = 0.30) with the DOT lenses (33.2 ± 12.5″) and single vision lenses (38.1 ± 14.2″). Functional reading speed metrics were similar in both study groups, as was the objectively measured head tilt during reading (p > 0.05). The mean halo radius was 0.56° ± 0.17° with the DOT lenses compared with 0.50° ± 0.12° with single vision lenses (p = 0.02), but the statistically significant difference was smaller than the non-inferiority bound of 0.4°. Conclusion: Diffusion optics technology lenses provide a clinically equivalent visual experience to a standard single vision lens.

Publication DOI: https://doi.org/10.1111/opo.13386
Divisions: College of Health & Life Sciences > School of Optometry > Optometry & Vision Science Research Group (OVSRG)
College of Health & Life Sciences > School of Optometry > Optometry
College of Health & Life Sciences
Aston University (General)
Funding Information: This study was funded by SightGlass Vision. DOT 0.2 spectacles lenses are pending FDA clearance, not available for sale within the United States.
Additional Information: Copyright © 2024 SightGlass Vision. Ophthalmic and Physiological Optics published by John Wiley & Sons Ltd on behalf of College of Optometrists. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Uncontrolled Keywords: binocular vision,contrast sensitivity,diffusion optics technology,myopia control,myopia management,reading speed,visual function
Publication ISSN: 1475-1313
Data Access Statement: The data presented in this study are available on request from the corresponding author and with permission of the funder.
Last Modified: 06 Nov 2024 08:19
Date Deposited: 03 Sep 2024 11:05
Full Text Link:
Related URLs: https://onlinel ... .1111/opo.13386 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2024-09-03
Published Online Date: 2024-09-03
Accepted Date: 2024-08-18
Authors: Wolffsohn, James S. (ORCID Profile 0000-0003-4673-8927)
Hill, Jennifer S.
Hunt, Chris
Young, Graeme

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