Asthenopia, or Weak Sight
Curtis, Edward M.![Asthenopia, or Weak Sight](https://support.digitalhusky.com/media/annotations/sorted/290/29017249/CHSBZCOP0329017249.jpg)
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, ...