Prevalence and trends of low vision among Han students from primary and secondary schools in Urumqi city during 1995 to 2014

Objective In order to explore the prevalence and trends of myopia among Han students in primary and middle schools in Urumqi during 1995 to 2014,and to provide basis for prevention and treatment of myopia.Methods Data from National Students Physical Fitness and Health Examination from 1995 to 2014 in Urumqi were analyzed.Results During 1995 to 2010,Urumqi Han elementary and middle school students in poor vision detection rate increased from 29.3% to 58.7%,and increased year by year.The city girls' poor eyesight rate growth of 32.7%,the largest increase,rural boys grew 27%,the growth rate of the smallest.Compared with 2010,in 2014 the overall detection rate of poor eyesight dropped 6.3 percentage points,year by year the rise has been checked,urban and rural students and male and female students showed the same trend.Except for 1995,girls detection rate of poor eyesight was higher than that of male students in 2000-2014,the difference was statistically significant(P<0.05);the overall vision of primary school and middle school students in senior high school period rate,the senior high school had highest growth rate (an increase of 34.8 percentage points) primary school had lowest growth rate (an increase of 17.2 percentage points).Primary school period of urban and rural students in poor vision detection rate difference with the year increased gradually,some urban and rural junior high prevalence of poor vision with the year fluctuated trend of urban and rural high school,the detection rate of poor eyesight was consistent with the year;during 1995-2014,poor eyesight accounted for more than the minimum,the highest proportion of severe vision the constituent ratio;consistent with the overall trend of men and women in urban and rural areas and the poor eyesight of students,and the differences in men and women in urban and rural areas and the trend was not statistically significant.Conclusion Myopia of the Han students in primary and middle schools increases gradually from 1995 to 2010 and is showing a decreasing trend in 2014.