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目的为了解2011年滕州市中小学生视力不良的变化规律,制定更有效的学生防近策略和措施提供依据。方法按分层随机整群抽样方法,抽取2011年滕州市44所学校的49 411名学生的视力监测结果进行统计分析。结果 2011年滕州市中小学生视力不良检出率为68.44%;学生视力不良率由小学低年级的24.49%逐年上升到高中年级的88.68%(P<0.01);城区72.69%,高于乡镇62.45%(P<0.01);女生71.25%,高于男生66.24%(P<0.01)。小学低年级学生多以轻度视力不良为主,随着年级的增长,学生视力不良程度逐步转变为以中、重度为主。结论滕州市中小学生视力不良状况严重,应加强中小学生视力保护。
Objective To understand the changing rules of poor eyesight of primary and secondary school students in Tengzhou City in 2011 and provide evidences for developing more effective anti-crime strategies and measures. Methods According to stratified random cluster sampling method, 49 411 students from 44 schools in Tengzhou City in 2011 were selected for visual analysis. Results The detection rate of poor eyesight among primary and middle school students in Tengzhou in 2011 was 68.44%. The rate of poor students’ visual acuity increased from 24.49% in primary school to 88.68% in senior high school year (P <0.01), 72.69% in urban area and 62.45% (P <0.01). Female students were 71.25% higher than male students (66.24%, P <0.01). The students in the lower primary school mostly were with mild-grade bad eyesight. With the growth of grades, the degree of poor eyesight of students gradually changed into medium- and heavy-grade ones. Conclusion Primary and secondary school students in Tengzhou have bad eyesight, so they should strengthen their eyesight protection.