Abstract
Importance: Atropine eyedrops are a promising treatment for slowing myopia progression in East Asian children. However, its effects on children in Australia, including those of non-Asian background, have not been well-studied. Background: The Western Australia Atropine for the Treatment of Myopia (WA-ATOM) study aims to determine the efficacy and long-term effects of low-dose atropine eyedrops in myopia control. This paper describes the study rationale, methodology and participant baseline characteristics. Design: Single-centre, double-masked, randomized controlled trial. Participants: Children (6-16 years) with spherical equivalent ≤−1.50 D in each eye, astigmatism ≤1.50 D and myopia progression by ≥0.50 D/year. Methods: Enrolled children were randomly assigned 2:1 to receive 0.01% atropine or placebo eyedrops. Participants are examined every 6 months during first 3 years of the study (2-year treatment phase followed by a 1-year washout phase), and then at a 5-year follow-up (2 years after the end of the washout phase). Main Outcome Measures: Annual progression rate of myopia and axial length, tolerability to eyedrops and incidence and severity of unwanted effects. Results: Out of 311 children who were referred, 242 were suitable for study participation, and 153 were subsequently enrolled. The baseline characteristics of enrolled participants are presented. Conclusions and Relevance: Outcomes of the WA-ATOM study will inform on the efficacy, tolerability, safety and long-term effects of low-dose atropine eyedrops in myopia control in Australian children. The impact of ocular sun exposure, iris colour and parental myopia on the efficacy of low-dose atropine will also be assessed.
Original language | English |
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Pages (from-to) | 569-579 |
Number of pages | 11 |
Journal | Clinical and Experimental Ophthalmology |
Volume | 48 |
Issue number | 5 |
DOIs | |
Publication status | Published - 1 Jul 2020 |
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