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This is a 12-month longitudinal randomized controlled trial aiming to evaluate the effect of colour temperature of reading lamp on refractive error development.
Myopia has reached epidemic in the world, especially in East Asia. The proportion of myopic population increases drastically during schoolage. Lack of light exposure has been suggested to be a risk for myopia development, in which additional reading lamp may alleviate this condition. However, the effect of colour temperature of the reading lamp is unknown on childhood refractive error development. In this study, investigators will randomly allocate school-aged children into groups, who will receive reading lamps of different colour temperatures for their daily use. The participants' refractive error and axial length will be evaluated.
Age
4 - 18 years
Sex
ALL
Healthy Volunteers
Yes
Optometry Research Clinic
Hong Kong, Kowloon, Hong Kong
Start Date
July 1, 2022
Primary Completion Date
June 30, 2025
Completion Date
June 30, 2027
Last Updated
March 1, 2024
798
ESTIMATED participants
3000K Reading lamp
DEVICE
4500K Reading lamp
DEVICE
6500K Reading lamp
DEVICE
Lead Sponsor
The Hong Kong Polytechnic University
NCT05458323
NCT06996353
NCT04077086
Data Source & Attribution
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