论文部分内容阅读
1990年8月,我们对吉林省永吉县乌拉街满族自治乡的韩屯、杨屯及北兰三村的三所满族小学和一所满族中学的620名满族中、小学生的视力进行了检查。男生310名,女生310名。年龄在7—16岁。采用国际标准视力表,在室内自然光线下检查。凡裸眼视力不足1.0者判为视力低下。结果如下:一、发生率:共检出视力低下者65人,占10.48%男生23人占7.42%;女生42人占13.55%。女生多子男生。二者之间差异有显著性(P<0.05)。二、视力低下的程度:视力在0.5以上者共69眼占72.63%;视力在0.4以下者共26
In August 1990, we examined the visual acuity of 620 Manchu primary and secondary school students in Han Man, Yang Tun, Manchu Autonomous Township, Wula Street, Wula Street, Jilin Province, and three Manchu primary schools and one Manchu middle school in Beilan village. 310 boys and 310 girls. Age 7-16 years old. Use of international standard eye chart, check under natural light in the room. Any uncorrected visual acuity of less than 1.0 sentenced to poor vision. The results are as follows: First, the incidence: a total of 65 were detected visually impaired, accounting for 10.48% 23 boys accounted for 7.42%; 42 girls accounted for 13.55%. Girls and boys. The difference between the two was significant (P <0.05). Second, the degree of vision loss: visual acuity of 0.5 or more in a total of 69 eyes accounted for 72.63%; visual acuity of 0.4 following a total of 26