Choroidal Response to the Modified Defocus Incorporated Multiple Segments Spectacle Lenses

The goal of this study is to investigate the short-term changes in choroidal thickness and efficacy of the study spectacle lenses in children. Participants will be prescribed with a pair of study spectacle lenses for daily use and visit the clinic once every week for the first month for checkup and tests. After the first month of follow-up, participants will visit at 1 month, 6- and 12-month for checkup. Choroidal thickness, axial length and refractive errors will be monitored.

NCT Number	NCT07547072
Lead Sponsor	The Hong Kong Polytechnic University Collaborators: HOYA Lens Thailand LTD.
Conditions	Myopia
Enrollment	108 participants
Start Date	2026-04-25
Primary Completion	2027-12-31 (estimated)
Study Completion	2028-02-29 (estimated)
Updated on ClinicalTrials.gov	2026-04-23