To prevent myopia, school supplies are one thing
Students myopia, now has been very common, my children in the fourth grade of primary school, their class has a number of students wear glasses, when her best friend wore glasses, she was very jealous, all day long said: "wearing glasses cool, when I can wear glasses?" Wait to the fifth grade, she could not see the words on the blackboard, we took her to the hospital for examination, she also...