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Binocular and accommodative function in the controlled randomized clinical trial MiSight® Assessment Study Spain

Alicia Ruiz-Pomeda1, Belén Pérez-Sánchez2, Pilar Cañadas3

  • 1Faculty of Biomedical and Health Sciences, Department of Pharmacy, Biotechnology, Nutrition, Optics and Optometry, European University of Madrid, C/Tajo s/n, Villaviciosa de Odón, 28670, Madrid, Spain. alicia.ruiz@universidadeuropea.es.

Graefe'S Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Fur Klinische Und Experimentelle Ophthalmologie
|September 10, 2018
PubMed
Summary

Dual focus (DF) MiSight® contact lenses (CLs) did not alter binocular and accommodative function in children undergoing myopia control. This study compared DF CLs to single-vision (SV) spectacles, finding no significant changes in visual function with the myopia control CLs.

Keywords:
AccommodationBinocular visionChildrenDual focus contact lenses

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Area of Science:

  • Ophthalmology
  • Pediatric Optometry
  • Myopia Control Research

Background:

  • Myopia control strategies are crucial for preventing vision impairment in children.
  • Dual focus (DF) contact lenses (CLs) offer a novel approach to myopia management.
  • Understanding the impact of DF CLs on visual function is essential for clinical adoption.

Purpose of the Study:

  • To evaluate binocular and accommodative function in children using DF MiSight® CLs for myopia control.
  • To compare visual function between children wearing DF CLs and those using single-vision (SV) spectacles.
  • To assess the safety and efficacy of DF CLs regarding visual system development.

Main Methods:

  • A randomized, controlled clinical trial was conducted with 74 children aged 8-12 years with myopia.
  • Participants were allocated to either MiSight® DF CLs or SV spectacles.
  • Binocular and accommodative functions were assessed at baseline, 12, and 24 months using phoria, AC/A ratio, stereopsis, accommodative amplitude (AA), and accommodative response (AR) tests.

Main Results:

  • Children wearing DF CLs showed no significant changes in binocular and accommodative measurements throughout the 24-month study.
  • The control group (SV spectacles) exhibited no significant changes in distance/near phoria, stereopsis, AC/A, or AR at 20 cm.
  • The control group showed significant increases in AA and AR at 33 cm and 25 cm at the 24-month visit compared to baseline.

Conclusions:

  • Dual focus (DF) MiSight® contact lenses do not adversely affect binocular and accommodative function in children.
  • The findings support the use of DF CLs as a safe option for myopia control in pediatric populations.
  • Further research may explore long-term visual development and potential benefits beyond refractive error correction.