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目的了解学生视力保护及视力总体水平变化情况,为进一步改善视力保护方式与方法提供依据。方法利用学校专用视力检测箱对上海市长宁区在校学生进行每年4次的视力监测,监测数据统一录入学校卫生工作信息系统,导出Excel后,以SPSS 17.0软件进行分析比较。结果 2003—2011学年度学生平均视力不良率为48.96%,整体呈现上升趋势,其中男生为47.05%,女生为51.09%,差异有统计学意义(u=3.95,P<0.05)。各年级学生视力不良率变化情况基本随年级上升,视力不良率呈上升趋势。结论学生视力呈整体严重化倾向,性别差异缩小,但整体视力不良水平提升,视力不良变化趋势后移,且配镜率较低。
Objective To understand the changes of the students’ eyesight protection and the overall visual acuity, and provide the basis for further improving the ways and means of visual acuity protection. Methods The visual acuity test box was used to monitor the eyesight of students in Changning District of Shanghai for 4 times per year. The monitoring data were collected into the school health work information system. After exporting Excel, the data were analyzed by SPSS 17.0 software. Results The average visual acuity defect rate was 48.96% in 2003-2011 school year, showing an overall upward trend, with 47.05% for boys and 51.09% for girls, the difference was statistically significant (u = 3.95, P <0.05). The grades of visual impairment rate of students in all grades basically increased with the grade, and the rate of vision impairment showed an upward trend. Conclusions The students’ visual acuity showed an overall serious tendency, the gender difference narrowed, but the overall visual acuity improved, the tendency of visual acuity changed backward, and the glasses rate was low.