近视眼风险因素在国内外已进行过许多研究，有不少类似的发现和观点。本项调研的特点是利用县、市级卫生防疫站学校卫生专业人员为调查员；现场分布广，在本省达19个县市；被调查者为同班级、同性别、年龄上2岁的“正视”与“近视”者各半；调查卡片事先设计、专门印制；利用Co Myopia risk factors have been studied at home and abroad, and there are many similar findings and opinions. The characteristics of this survey are the use of county and municipal health and epidemic prevention station school health professionals as investigators; the site is widely distributed and reaches 19 counties and cities in the province; the respondents are of the same class, same sex, and 2 years old. Face up to half of those who are “myopia”; survey cards are designed in advance and printed exclusively; use Co.