The Initiating Factors of Myopia Among Primary and Secondary School Students in Tianjin
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 200
- 试验地点
- 1
- 主要终点
- The changes of refractive error
研究概览
简要总结
There was a prospective cohort observational study. Forty hyperopic children, 40 myopic children and 120 emmetropia children were randomly selected from grade 1 to grade 3, and were followed up every six months for 3 years. All patients received cycloplegic refraction examination, ocular biological test, binocular visual function test and a questionnaire related to daily eye habits. A multi-level and multi-dimensional data analysis model was constructed to explore the possible factors affecting the occurrence and development of myopia in children.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 5 Years 至 11 Years（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •students in grades 1-3
- •Can cooperate with the examination of students
排除标准
- •Obvious strabismus and amblyopia
- •Eye diseases that affect vision, such as congenital cataracts, glaucoma, and retinal diseases
- •History of ocular surgery
结局指标
主要结局
The changes of refractive error
时间窗: Every 6 months for a period 3 years
The changes of refractive error between visit time in every 6 months
The changes of axial length
时间窗: Every 6 months for a period 3 years
The changes of axial length between visit time in every 6 months.
次要结局
未报告次要终点