A 3-Year Randomized Clinical Trial of MiSight Lenses for Myopia Control

Paul Chamberlain, Sofia Peixoto-de-Matos, Nicola S Logan, Cheryl Ngo, Deborah Jones, Graeme Young

Research output: Contribution to journalArticle

Abstract

SIGNIFICANCE: Results of this randomized, double-masked clinical trial demonstrate the effectiveness of the MiSight soft contact lens in slowing myopia progression over multiple years. PURPOSE: The purpose of this study was to quantify the effectiveness of MiSight daily disposable soft contact lens in slowing the progression of juvenile-onset myopia. METHODS: Myopic children (spherical equivalent refraction, -0.75 to -4.00 D; astigmatism, <1.00 D) aged 8 to 12 years with no prior contact lens experience were enrolled in a 3-year, double-masked, randomized clinical trial at four investigational sites in four countries. Subjects in each group were matched for age, sex, and ethnicity and were randomized to either a MiSight 1-day contact lens (test) or Proclear 1-day (control; omafilcon A) and worn on a daily disposable basis. Primary outcome measures were the change in cycloplegic spherical equivalent refraction and axial length. RESULTS: Of the subjects enrolled, 75.5% (109/144) completed the clinical trial (53 test, 56 control). Unadjusted change in spherical equivalent refraction was -0.73 D (59%) less in the test group than in the control group (-0.51 ± 0.64 vs. -1.24 ± 0.61 D, P < .001). Mean change in axial length was 0.32 mm (52%) less in the test group than in the control group (0.30 ± 0.27 vs. 0.62 ± 0.30 mm, P < .001). Changes in spherical equivalent refraction and axial length were highly correlated (r = -0.90, P < .001). Over the course of the study, there were no cases of serious ocular adverse events reported. Four asymptomatic corneal infiltrative (one test, three control) events were observed at scheduled study visits. CONCLUSIONS: Results of this clinical trial demonstrate the effectiveness of the MiSight daily disposable soft contact lens in slowing change in spherical equivalent refraction and axial length.

Original languageEnglish
Pages (from-to)556-567
Number of pages12
JournalOptometry and Vision Science
Volume96
Issue number8
Early online date19 Jul 2019
DOIs
Publication statusPublished - 1 Aug 2019

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Bibliographical note

Copyright © 2019 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Optometry.
This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives
License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work
cannot be changed in any way or used commercially without permission from the journal.

Funding: CooperVision Inc.

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