Evaluation of Performance of MiYOSMART Photochromic and Clear Spectacle Lenses in Myopic Children

Not Applicable

Not yet recruiting

• Conditions: Myopia; Myopia Progression

• Registration Number: NCT06717035
• Lead Sponsor: Singapore National Eye Centre

Brief Summary

This clinical study aims to evaluate the non-inferiority of the photochromic DIMS spectacles lenses performance (PDIMS) compared to clear DIMS spectacles lenses (DIMS) in myopia management.

Detailed Description

Myopia now is recognized as one of the important public health problems and myopia prevention and control has become more important. Various myopia management strategies have been tested in the past for the control of myopia progression in children. In recent years, various optical interventions have also been explored to manage myopia, including the use of optical, pharmaceutical, and lifestyle interventions. Spectacles, atropine eye drops, and outdoor activities have shown some efficacy in slowing myopia progression, but the optimal approach to delaying or preventing the onset of myopia in at-risk populations remains a challenge. These myopia management modalities are often also labelled as invasive and non-invasive methods. One of the non-invasive myopia management modalities includes spectacles.

DIMS spectacle lenses are based on creating myopic defocus at the mid-periphery of the retina which would provide a cue of axial length elongation control. DIMS is a spectacle lens with a central optical zone of 9.4 mm for correcting distance myopic refractive errors and a mid-peripheral 33mm of treatment zone with multiple segments of 1 mm diameter, each segment provides defocus of + 3.5D. 2-year Randomised Controlled Trial (RCT) showed 52% reduction in myopia progression and 62% slow down effect in axial elongation in children wearing DIMS spectacle lenses compared to those on single vision spectacle lens correction at the end of 2-year follow-up in Hong Kong children.

2-years RCT has been conducted using DIMS clear spectacle lenses, however, no studies have been conducted on photochromic and polarized version to show the non-inferiority of sun solutions compared to clear version in myopia management.

This clinical study aims to evaluate the non-inferiority of the photochromic DIMS spectacles lenses performance (PDIMS) compared to clear DIMS spectacles lenses (DIMS) in myopia management.

Study Timeline

• Status Verified: 2024-11
• Study First Submitted: 2024-11-23
• Study First Submitted QC: 2024-11-29
• Last Update Submitted: 2024-11-29
• Study First Posted: 2024-12-04
• Last Update Posted: 2024-12-04
• Study Start: 2025-01-02
• Primary Completion: 2027-01-02
• Study Completion: 2027-01-02

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 202

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Comparing photochromic DIMS spectacles lenses performance (PDIMS) versus clear DIMS spectacles lenses (DIMS)	24 months	The primary objective of this study is to evaluate the efficacy of photochromic DIMS spectacles lenses performance (PDIMS) compared to clear DIMS spectacles lenses (DIMS) in terms of childhood myopia control (cycloplegic spherical equivalent refraction (SER), axial elongation and choroidal thickness).

Secondary Outcome Measures

Name	Time	Method
Performance of photochromic DIMS spectacles lenses performance (PDIMS) compared to clear DIMS spectacles lenses (DIMS)	24 months	To assess the safety, tolerability (quality of life (QoL)), and adaptation to PDIMS lens wear compared to DIMS lens wear.

Trial Locations

Locations (1)

Singapore National Eye Centre; 🇸🇬 Singapore, Singapore