The purpose of this study is to determine whether Eye Health Intervention can obviously reduce and delay myopia onset and development and improved the awareness rate of knowledge apparently .
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
PREVENTION
Masking
NONE
Enrollment
1,517
give a lecture and issue knowledge manual for children and parents ,6 months once , 2.5 years
Prevalence of Myopia
Time frame: every 6 months, total 3 years
health of eyes knowledge
Time frame: every 6 months, total 3 years, questionnair
health of eyes behavior
Time frame: every 6 months, total 3 years, questionnaire
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