Excerpt from The Eye and Its Diseases There is a popular notion that it is much more dangerous to tire the eyes by use than it is to tire any other organ of the body. It is not necessarily injurious to the legs, or the arms, or the brain to become tired, for proper rest may restore all these to their nor mal condition. The same is true in regard to the eyes. Proof readers, sewing women, authors, and mechanics, who use their eyes for a long time upon near objects, must of necessity weary the muscles which adjust the eye to vision but if the weariness is compensated for by rest at proper intervals, there will be no harm done to the eyes, for they are so constructed that they can bear maximum fatigue as well as other parts of the body. Edu cation would cease, all mechanical work would soon have an end, if the eyes of school-children and of a certain kind of workmen were never tired. Eyes are never overworked, even if they feel very tired when the task is done, if their natural power and fresh ness return after the proper intervals of rest during the day and sleep at night. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.