曹县545名小学生5年视力追踪调查结果分析

Epidemiological Study of 545 Pupils in Caoxian County for Five years

目的 探索小学生视力低下发展的规律 ,为视力保护工作提供科学依据。方法 对曹县城关镇第三小学校 1994年入校的一年级小学生中稳定的 545名进行跟踪调查 ,以视力低于 4 .9为视力低下。结果 545名小学生视力低下率随年级的升高而升高 ,且女生视力低下率明显高于男生 ( χ2 =2 5.2 6,P <0 .0 5)。结论 4～ 5年级小学生是视力低下发展的关键阶段 。

Objective To research the regularity of pupils' sight-short and offer scientific reference to protecting eyesight. Methods 545 pupils in the grade one of the third primary school in 1994 were investigated. Eyesight below 4.9 was judged sight-short. Results The rate of sight-short rised with the grades. Compare the boys' with the girls',there was no difference between grade one and grade three. The rate of the girls' was poorer than boys' in the fourth or the fifth grade (χ 2=25.26,P<0.05). Conclusion The fourth or fifth grade are critical moment of eyesight for the pupils and it is an important job to protect eyesight.