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1 资料与方法1·1 资料 培训普查医生,制订普查问卷,课题组选派眼保健专业技术人员,组织各厂矿医院眼科医生、妇幼医生和托幼机构保健医生学习眼解剖与生理,弱视的成因、分度、检查和诊断,鉴别诊断及防治方法,统一制订调查问卷,采用《服务规范》推荐标准进行调查。1·2 对象 为大庆市城区3～6岁儿童共973名。1·3 调查方法与时间 课题组采取分层随机抽样,抽取市区内家庭经济收入、托幼机构条件相似的10个幼儿园,于1998
1 Materials and Methods 1.1 Data Training census doctors, the development of census questionnaire, the task group selected eye health professional and technical personnel, the factory mine hospitals ophthalmologists, women and children and nurseries health care doctors to learn the anatomy and physiology of the eye, the causes of amblyopia, Indexing, examining and diagnosing, differential diagnosis and prevention and treatment, making questionnaires in a unified way and conducting investigation through the recommendation of “service standard”. The target population is 973 children aged 3-6 in Daqing City. 1.3 Methods and Time of Investigation The research group adopted 10 stratified random sampling to draw the 10 kindergartens with similar household economic incomes and nurseries in urban areas.