On some of the forms of disease of the eye, constituting the condition commonly called amaurosis / by Ernest Hart.

  • Hart, Ernest, 1835-1898.
Date:
1864
Catalogue details

Licence: Public Domain Mark

Credit: On some of the forms of disease of the eye, constituting the condition commonly called amaurosis / by Ernest Hart. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

    24/40 (page 18)
    elongation of the dimensions of the eyeball is attended, of necessity, with short-sightedness: and increasing short-sightedness is one of the earliest and most palpable warnings of the first stages of the disease. If this warning is misinterpreted, and the increasing shortness of sight is met, as is too often the case, by the employment of concave lenses of proportionately greater power, the progress of the disease is hastened by the very means which ]palliate its inconveniences. In many cases, indeed, the disease after reaching a certain point will be stayed, and excessive shortness of sight will be the principal inconvenience for many years. But in many others, the changes extend till they reach the yellow spot; or a fresh and distinct focus is set up at that point, and then the retina is seriously involved, though in the first stage it is little affected. The retina does not adhere to the staphylomatous projection, although following it, and it really lends itself to that degree of distension which it suffers with singular facility. On the other hand, as the yellow spot becomes impli- cated, the retina at this point, one of the highest visional value, suffers, for here it is thinnest and can least endure the stretching. Then serious dimness of vision is added to the myopia. Presently follow a train of consequences which end in various forms of blindness, the complete