Strategies to improve the accuracy of vision measurement by teachers in rural Chinese secondary schoolchildren - Xichang Pediatric Refractive Error Study (X-PRES) report no. 6
Strategies to improve the accuracy of vision measurement by teachers in rural Chinese secondary schoolchildren - Xichang Pediatric Refractive Error Study (X-PRES) report no. 6
复制标题
DOI：
10.1001/archopht.126.10.1434
复制
发表时间：
2008-10-01
影响因子：
--
通讯作者：
Congdon, Nathan
中科院分区：
文献类型：
--
作者：
Sharma, Abhishek;Li, Liping;Congdon, Nathan
目的：与视力专业人员相比，评估并提高非专业筛查人员在检测中国农村中学生视力障碍方面的准确性。方法：经过短暂培训，32 名教师和视力专业人员团队独立测量了西昌市 1892 名儿童的视力。在一项政府筛查计划中，卫生技术人员还对孩子们进行了视力测量。 结果：在 32 名教师中，28 名 (87.5%) 认为教师筛查是值得的。教师检测未矫正呈现视力为 20/40 或更低的灵敏度 (93.5%) 和特异性 (91.2%) 优于呈现视力（灵敏度，85.2%；特异性，84.8%）。教师未能识别出拥有眼镜但未戴眼镜的儿童，以及教师对戴眼镜儿童视力更好的偏见，解释了初始视力较差的结果。戴眼镜是最能预测教师筛查不准确的学生因素（P
Objective: To assess and improve the accuracy of lay screeners compared with vision professionals in detecting visual impairment in secondary schoolchildren in rural China.Methods: After brief training, 32 teachers and a team of vision professionals independently measured vision in 1892 children in Xichang. The children also underwent vision measurement by health technicians in a concurrent government screening program.Results: Of 32 teachers, 28 (87.5%) believed that teacher screening was worthwhile. Sensitivity (93.5%) and specificity (91.2%) of teachers detecting uncorrected presenting visual acuity of 20/40 or less were better than for presenting visual acuity (sensitivity, 85.2%; specificity, 84.8%)). Failure of teachers to identify children owning but not wearing glasses and teacher bias toward better vision in children wearing glasses explain the worse results for initial vision. Wearing glasses was the student factor most strongly predictive of inaccurate teacher screening (P