Community Intervention and Demonstration Area Construction
Myopia, Refractive Errors
About this trial
This is an interventional prevention trial for Myopia
Eligibility Criteria
Inclusion Criteria: ● Kindergarten kids. Grade of 1 to 6 in elementary schools. Grade of 1 to 3 in middle schools. Grade of 1 to 3 in high schools. Sign the informed consent. Exclusion Criteria: ●Visual defect or other eye diseases. wearing orthokeratology; refractive surgery history. Not considered suitable for inclusion in the study by the investigator.
Sites / Locations
- Anqing myopia sceneRecruiting
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Experimental
Experimental
Experimental
Experimental
Cluster A
Cluster B
Cluster C
Cluster D
The study population (school-based) was divided into four clusters.Each cluster will receive the same intervention.and one cluster was randomly selected as Cluster A. The intervention was administered at month 6 and monitored for two years.
The study population (school-based) was divided into four clusters. Each cluster will receive the same intervention.and one cluster was randomly selected as Cluster B. The intervention was administered at month 12 and monitored for one and a half years.
The study population (school-based) was divided into four clusters.Each cluster will receive the same intervention. and one cluster was randomly selected as Cluster C. The intervention was administered at month 18 and monitored for a continuous period of one year.
The study population (school-based) was divided into four clusters.Each cluster will receive the same intervention.and one cluster was randomly selected as Cluster D. The intervention was implemented at month 18 and an evaluation of the effect of the intervention was performed.