不同教具对儿童视功能的影响  

Effects of Various Teaching Aids on Visual Function of Children

作　　者：邢玉梅[1] 王荔[1] 姜峰[1] 刘德华[1] 冀成武 董川[3] 

机构地区：[1]山西医科大学公共卫生学院儿少教研室,太原030001 [2]山西省世纪星公司 [3]山西大学化学系化学教研室

出　　处：《中国学校卫生》2001年第6期499-500,共2页Chinese Journal of School Health

摘　　要：目的　比较至诚板、笔与传统的黑板、粉笔对儿童视功能的影响。方法　选取太原市 2所小学 1 0～ 1 1岁儿童 61名 ,教师使用至诚板、笔或黑板、粉笔条件下 ,上课前和上课后测试闪光融合频率值。结果　使用至诚板、笔教具上课后闪光融合频率减少值明显低于黑板、粉笔教具 ,差异有显著性 (P <0 .0 5) ;当观察角大于 45°时 ,至诚板、笔教具闪光融合频率减少值明显低于黑板、粉笔教具 ,差异有显著性 (P <0 .0 5)。结论　至诚板、笔教具在降低儿童视疲劳方面明显优越于黑板、粉笔教具。Objective To make a comparison of influence on visual function of children between Zhicheng and traditional blackboard-chalks. Methods Zhicheng and traditional blackboard-chalk teaching aids were used respectively, flicker fusion frequencies of 61 children ages 10～11 were tested before and after class at 2 primary schools. Results The decrease in flicker fusion frequency was smaller due to the use of Zhicheng blackboard-chalk teaching aid when compared with traditional blackboard-chalk teaching aid( P <0.05). When viewing angle>45°, Zhicheng blackboard-chalk teaching aid resulted in a slight reduction in flicker fusion frequency than traditional blackboard-chalk teaching aid( P <0.05). Conclusions Zhicheng blackboard-chalk teaching aid is superior to traditional blackboard-chalk teaching aid in prevention of visual fatigue of children.

关 键 词：视力疲劳 闪光融合 儿童 

分 类 号：R778[医药卫生—眼科] R179[医药卫生—临床医学]