Effect of Increasing Time Spent Outdoors on Myopia Prevention in School-Aged Children in Northeast China

Anhui Medical University

Status: Completed

Conditions: Myopia

Treatments: Behavioral: increasing time spent outdoors

Study type: Interventional

Funder types: Other

Identifiers

NCT02271373

2013001

Details and patient eligibility

About

The purpose of this study is to develop a school-based intervention aimed at prevent the onset and development of myopia among school aged children by increasing time spent outdoors in northeast China.

Full description

The purpose of this study is to develop a school-based intervention aimed at prevent the onset and development of myopia among school aged children by increasing time spent outdoors among elementary and secondary school students in northeast China. It is expected that the results will provide evidences for policy-makers and school healthcare providers for their school children myopia prevention.

Enrollment: 3,521 patients

Sex: All

Ages: 6 to 14 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Grade of 1 to 5 in elementary schools and grade of 7 to 8 in secondary schools.

Exclusion criteria

• Visual defect or other eye diseases; wearing orthokeratology; refractive surgery history.

Trial design

Primary purpose: Prevention

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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3,521 participants in 2 patient groups

intervention group

Experimental group

Description:

The intervention group undertook interventions by increasing time spent outdoors. The interventions composed of performing two additional recess program lasting 30 minutes outside the classroom that encouraged children to go outside for outdoor activities during recess in both the morning and afternoon during school days within a intervention period of 1 school year.

Treatment:

Behavioral: increasing time spent outdoors

control group

No Intervention group

Description:

The control school did not have any interventions.