摘要
目的 :了解青少年视力发展变化规律 ,为预防青少年近视提供依据。方法 :对 10 0例 4岁儿童进行视力检查 ,全部散瞳验光 ,个别儿童配戴眼镜 ,连续 10年追踪检查视力和屈光改变。结果 :4岁正常视力的儿童至 9岁时大部分成为近视 ;6岁以前的正视眼在 14岁后全部变为近视 ;11岁以前的远视眼 95%以上变为正视和近视。结论 :检查学龄前儿童视力 ,可以预测以后的屈光改变 ,学龄前儿童视力越好 ,越应提前预防近视。
Objective:To study the regularity of visual changes of children,and to provide the evidence for preventing myopia for children.Method:Visual acuities were tested for 100 four-years-old children.All children were checked up refractive state by cycloplegic retinoscopy.Some children put on glasses.The changes of vision and refractive state were followed up for ten years.Results:Four-years-old children with normal vision got myopia when they were nine years old.All those with emmetropia before six years old grew to myopia when they were 14 years.95 percent of the children with hyperopia before 11 years became emmetropia or myopia when they were 14 years old.Conclusion:Vision test for preschool child can estimate the changes of refractive state.The better visions the preschool children get,the earlier prevention myopia they can get.
关键词
儿童
学龄前
视力试验
随访研究
Child,preschool
Vision tests
Follow-up studies
