Environmental factors and myopia: prospects for prevention

Myopia is becoming an alarming public health challenge in China,due to increasingly high prevalence and the younger age of onset.During the past decades,much attention has been turned towards the potential effects of environmental factors in myopia.This review summarizes data on associations between near work and outdoor activities,sleep duration,ambient lighting exposure,as well as dietary patterns with myopia among children and adolescents.A range of sight-saving intervention strategies have been proposed in the context of community,school,family,children and vulnerable population,which might offer multiple opportunities to promote and protect healthy vision through the entire lifespan.