1) Poor eyesight
视力低下
1.
[Results]Poor eyesight rate grew with higher grade,but the growth rate altered bigger in low-grade students than high-grade students;the situation of kids in urban school and primary school were worse than kids in suburban school and ordinary school,but the poor eyesig.
[目的]了解钦州市小学生视力低下的情况,为做好小学生视力保护预防工作提供依据。
2) Hypopsia
视力低下
1.
Monitoring and Analysis of Hypopsia in Middle and Primary School Students in Longyan City from 2002 to 2006;
2002~2006年龙岩市部分中小学生视力低下监测分析
3) Weak eyesight
视力低下
1.
[Objective] To discover the growing regularity and dynamic trend of weak eyesight of primary and middle school students.
[目的]探讨和掌握深圳市福田区中小学生视力低下的发展规律和动向。
4) Poor sight
视力低下
1.
Results The rate of poor sight in the key high schools was higher than that of the ordinary schools.
目的 了解曹县重点高中与普通高中学生视力低下状况 ,为防治提供科学依据。
5) eyesight dysfunction
视力低下
1.
Results The rate of eyesight dysfunction in the secondary school studends is higher than that in the elementary school studends,and higher in girls than in boys.
目的 了解凌海市中小学生视力低下状况 ,为开展视力保护工作提供科学依据。
6) the rate of sight-short
视力低下率
补充资料：巴达尔氏视力计