If adolescents read books for too long, myopia is almost inevitable  Students in Jinghua Middle School all study hard  Although everyone knows to protect their eyes, most students read more than 10 hours a day, which inevitably causes that the continuous reading time is too long  The rest of the students also read 8 hours a day
The head teacher praises the students who read more than 10 hours a day
The proportion of myopia among students in Jinghua Middle School is greater than that of other schools.