Yanming Chen, Yining Shi, Le Yang
1 China Medical University, Shenyang 110001, China
2 Department of Ophthalmology,Shaanxi Province People's Hospital, Xi'an 710068,China









Figure 1 Constituent ratio of high myopia in different grades and stages among schoolchildren (%)

Figure 2 Constituent ratio of high myopia among schoolchildren of both genders(%)

Figure 3 Constituent ratio of high myopia in different eyes among schoolchildren(%)



Figure 4 Distribution of average refractive error of high myopia among schoolchildren (D)

Table 1 Average refraction at different ages




Figure 5 Distribution of high myopia among schoolchildren (eye)






