Asthenopia, or Weak Sight

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Excerpt from Asthenopia, or Weak Sight: Read Before the Medical Association of Central New York, at the Annual Session Held at Rochester, June 1869Asthenopia may be divided into three varieties - retinal, accommodative, and muscular and a patient with weak sight may be troubled with one or all Of them.When the re¿ection Of the images Of surrounding objects upon the retina causes pain or an uncomfortable sensation, we have the retinal variety, which is at its height in severe cases Of photophobia (or intolerance Of light), mild examples occur in connection with the accommodative and muscular forms about to be described.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.