Guangzhou Outdoor Activity Longitudinal Study

Sun Yat-sen University

Status: Unknown

Conditions: Myopia

Treatments: Behavioral: Outdoor activity

Study type: Interventional

Funder types: Other

Identifiers

NCT00848900

GOAL2009

Details and patient eligibility

About

The purpose of this study is to assess whether outdoor activities are effective in preventing the development and progression of juvenile-onset myopia in Chinese children.

Full description

1. To determine if increased engagement in outdoor activities reduces the development and progression of myopia in Chinese school children.
2. To identify the risk factors associated with the development and progression of juvenile-onset myopia.
3. To characterize the interaction between refractive error and education.

Enrollment: 2,000 estimated patients

Sex: All

Volunteers: No Healthy Volunteers

Inclusion criteria

• All the students in Grade 1

Exclusion criteria

• No

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Single Group Assignment

Masking: None (Open label)

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2,000 participants in 2 patient groups

Control

No Intervention group

Outdoor activity

Experimental group

Description:

Adding 1 hour outdoor time into school curricula

Treatment:

Behavioral: Outdoor activity