Show 0 o ftak 4 ft p r eyestrain of school life examinations of over calr of eyes and careful tabulation of the results in the boston public school schoola show that nearly all children enter the primary school schools with normal eyes in the higher grades one fourth of the th pupils are myopic and in universities this increases until from CO 60 to 70 per cent of the student students are myopic IA 10 other words nearsightedness inv la creases a steadily from the lowe to the higher grades and in exact portion to the length of time tinto devoted to the eyestrain of school life |