Impact of reading lamp color temperature on myopia development in children
Official title: Effect of Colour Temperature of Reading Lamp on Refractive Error Development
Run by The Hong Kong Polytechnic University · NCT05733182 · Data updated 2026-11-12
This study is testing whether different colors of reading lamps can affect the development of nearsightedness in children aged 4 to 18 over a year.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 4 Years to 18 Years |
| Sex | All |
| Enrollment | 798 (estimated) |
| Sponsor | The Hong Kong Polytechnic University Academic / other |
| Locations | 1 site (Hong Kong, Kowloon) |
| Status | Recruiting |
| Started | July 1, 2022 |
| Main results expected | June 30, 2025 |
| Study ends | June 30, 2027 |
| Registry record updated | March 1, 2024 |
| Trial ID | NCT05733182 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are school-aged children between 4 and 18 years old who have not received any prior myopia control interventions.
✕Probably not a fit
Patients who have already undergone myopia control interventions may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This longitudinal randomized controlled trial aims to assess how different color temperatures of reading lamps affect the development of refractive errors, particularly myopia, in school-aged children over a 12-month period. Participants aged 4 to 18 will be randomly assigned to use reading lamps with color temperatures of 3000K, 4500K, or 6500K. The study will measure changes in refractive error and axial length to determine the impact of lighting conditions on myopia progression.
Why it matters
Potential benefit: If successful, this study could provide insights into effective lighting strategies to mitigate the development of myopia in children.
How similar studies have gone: While the relationship between lighting and myopia is being explored, this specific approach to evaluating color temperature effects is relatively novel and has not been extensively tested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * aged between 4 and 18 years Exclusion Criteria: * have received myopia control intervention
Where it's running
-
Optometry Research Clinic
Hong Kong, Kowloon, Hong Kong Recruiting
Study contacts
- Study coordinator: Kai Yip Choi, PhD
- Email: kaiyip.choi@polyu.edu.hk
- Phone: (852)34002934
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.