Light Emitting Diodes With a Continuous Spectrum of 430-780nm for Myopia Prevention
Myopia, Refractive Errors, Eye Diseases
About this trial
This is an interventional prevention trial for Myopia
Eligibility Criteria
Inclusion Criteria: All the students in Grades 2 and 3 from the 8 schools participated in a myopia surveillance program in Zengcheng District, Guangzhou, China. Provision of consent and able to participate in all required activities of the study. Exclusion Criteria: Schools without Grade 2 or Grade 3. Schools that only had one class in either grade. Children who refused to accept cycloplegia and/or other examinations. Children with ocular abnormalities and/or previous history of ocular surgery.
Sites / Locations
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Arms of the Study
Arm 1
Arm 2
No Intervention
Experimental
Regular LEDs
Novel LEDs
Students will accept regular LEDs with a spectrum of 430-630 nm for lighting in the classroom.
Students will accept novel LEDs with a spectrum of 430-780 nm for lighting in the classroom.