Clinical Trial

Double Helix Design Defocus Lens Spectacle (RACE) for Myopia Control

Active, Not Recruiting
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Summary
This study uses 1.585 double helix defocus lens PC lenses with a unique optical design that includes a globally coherent visible area and complementary left and right helices that can form clear images. In addition, the helical arrangement and reduced slit area can generate defocusing signals, inhibiting the development of myopia. Therefore, based on previous research, this study plans to evaluate the safety and effectiveness of 1.585 double helix defocus lens PC frame eyeglasses in controlling the progression of myopia in children and adolescents through a randomized controlled clinical trial.
Protocol Amendment History 1 amendment
This ClinicalTrials.gov record has been amended once since 2023-05-30.
Status change: Recruiting → Active, Not Recruiting 2025-12-02
Trial Details
NCT Number NCT05894382
Lead Sponsor Shanghai Eye Disease Prevention and Treatment Center
Conditions Myopia, Progressive
Enrollment 236 participants
Start Date 2023-06-03
Primary Completion 2026-08-31 (estimated)
Study Completion 2026-12-31 (estimated)
Updated on ClinicalTrials.gov 2025-12-08