268 Prevention of Myopia
yet practically all of these cases could be cured and the development of new ones prevented by the daily read ing of the Snellen test card.
Why should our children be compelled to suffer and wear glasses for want of this simple measure of relief? It costs practically nothing. In fact, it would not be neces sary, in some cases, as in the schools of New York City, even to purchase the Snellen test cards, as they are al ready being used to test the eyes of the children. Not only does it place practically no additional burden upon the teachers, but, by improving the eyesight, health, dis position and mentality of their pupils, it greatly lightens their labors. No one would venture to suggest, further, that it could possibly do any harm. Why, then, should there be any delay about introducing it into the schools? If there is still thought to be need for further investiga tion and discussion, we can investigate and discuss just as well after the children get the cards as before, and by adopting that course we shall not run the risk of need lessly condemning another generation to that curse which heretofore has always dogged the footsteps of civiliza tion, namely, defective eyesight. I appeal to all who read these lines to use whatever influence they possess toward the attainment of this end.
FOR USING THE SNELLEN TEST CARD FOR THE
PREVENTION AND CURE OF IMPERFECT
SIGHT IN SCHOOLS
The Snellen Test Card is placed permanently upon the wall of the classroom, and every day the children silently read the smallest letters they can see from their seats with each eye separately, the other being covered