Active — Not RecruitingNot Applicable

Myopia Control Efficacy of Second-generation DIMS Spectacle Lenses on Fast Progressing Myopes - Auxiliary Group

Hong Kong59 participantsStarted 2023-07-29

Plain-language summary

The purpose of this study is to examine the efficacy and performance of the Defocus Incorporated Multiple Segments (DIMS) and a variant of DIMS (D2) spectacle lenses on controlling myopia progression in fast progressing myopic children.

Who can participate

Age range4 Years – 12 Years

SexALL

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Inclusion Criteria: * SER: -1.00D or below * Documented history of fast progressing myopia, either in SER or AL * SER progression: 0.50D/year or more * AL elongation: 0.27mm/year or more * Best-corrected monocular visual acuity (VA) in both eyes: 0.00 logMAR (equivalent) or better * Acceptance of random group allocation and the masked study design * Anisometropia of 1.50 D or less * Astigmatism of 2.00 D or less Exclusion Criteria: * Strabismus and binocular vision abnormalities * Ocular and systemic abnormalities * Prior experience of myopia control

What they're measuring

Cycloplegic refraction change in spherical equivalent refraction (SER)

Timeframe: Baseline, every 6 months for 4 years

Trial details

NCT IDNCT05888805

SponsorThe Hong Kong Polytechnic University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2028-12-31

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