The report shows that the detection rates of poor vision among fourth-grade and eighth-grade students in my country are 36.5% and 65.3% respectively, among which the proportion of eighth-grade students with severe poor vision exceeds 30%. Previously, the results of the national student physical health survey and monitoring also showed that the poor vision rates of primary school students, junior high school students, senior high school students and college students in my country are as high as 45.71%, 74.36%, 83.28% and 86.36% respectively. Among all the nearsighted people across the country, the estimated number of primary and secondary school students exceeds 100 million...