About this trial
This prospective, single-center study aims to evaluate the efficacy and safety of MiYOSMART iQ spectacle lenses with DIMS (Defocus Incorporated Multiple Segments) and Triple Enhanced Design (TED) technology in slowing myopia progression in children aged 8-11 years.
35 children with myopia (spherical equivalent -0.5 to -6.0 D) will be prescribed MiYOSMART iQ lenses and followed for 6 months. The study will compare changes in spherical equivalent refraction and axial length against a historical control group (n=35) using ANCOVA. Secondary outcomes include measurements of peripheral refraction and contrast sensitivity at the first prescription.
The study hypothesis is that wearing MiYOSMART iQ lenses for 6 months significantly slows myopia progression compared to single-vision spectacle correction.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age 8-11 years (inclusive)
Myopia: spherical equivalent -0.5 to -6.0 D under cycloplegia
No previous myopia control treatment
Orthophoria, presence of binocular vision
Disqualifiers
Corrected visual acuity < 0.8 (decimal)
Anisometropia > 2.0 D
Strabismus history or presence
Previous refractive or intraocular surgery
Trial design
Single group
Treatments tested in this trial
MiYOSMART iQ spectacle lenses
DeviceMiYOSMART iQ are single-vision spectacle lenses made of polycarbonate (refractive index 1.59) featuring Defocus Incorporated Multiple Segments (DIMS) technology with Triple Enhanced Design (TED). The lens contains a central optical zone for clear distance vision, surrounded by multiple, uniformly distributed micro-lens segments (diameter: \~1.00 mm) that create a consistent myopic defocus signal of +4.50 D across the peripheral retina. This specific optical design aims to slow axial elongation in progressing myopia. The intervention involves full-time wear of spectacles with these lenses. The device is CE-marked and has Russian registration certificate No. ФСЗ 2012/11555 dated December 5, 2024
Treatment groups
Trial outcomes
Primary outcomes
Change in Axial Length
Change in axial length, measured in millimeters (mm)
Change in Spherical Equivalent Refraction
Change in cycloplegic spherical equivalent refraction, measured in diopters (D)
Secondary outcomes
Peripheral Refraction
Peripheral refraction values at various retinal points (e.g., 20° and 30° nasally, temporally, superiorly, inferiorly), measured in diopters (D) with an open-field autorefractometer, without correction and with new MiYOSMART iQ spectacles
Contrast Sensitivity
Spatial contrast sensitivity (log units) for various spatial frequencies, measured with the "Mesotest" device in a trial frame and with new MiYOSMART iQ spectacles
Safety - Incidence of Adverse Events
Frequency, nature, and severity of all recorded Adverse Events (AEs) and Device Deficiencies (DDs) related to the use of MiYOSMART iQ spectacles.
Sponsors and contacts
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Hoya Lens Rus LLC
Lead sponsor
Helmholtz National Medical Research Center of Eye Diseases
Collaborator