Ocular therapeutics for physicians and students / by F.W. Max Ohlemann ; translated and edited by Charles A. Oliver.

  • Ohlemann, F. W. Max.
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: Ocular therapeutics for physicians and students / by F.W. Max Ohlemann ; translated and edited by Charles A. Oliver. Source: Wellcome Collection.

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    CHAPTER XVI. TREATMENT OF AMBLYOPIA AND AMAU- ROSIS. I. AMBLYOPIA. There is a series of special physiologic or visual disturbances that has not been included in the con- sideration of the diseases of the parts of the eye thus far described. They constitute a particular class and demand special treatment. In the diagnosis of the amblyopias, the power of central vision, the accommodation, and the refrac- tion, as well as the extent of the visual field and the condition of the color-sense, should be tested. Under the term congenital amblyopia, are included all those cases in which a slight reduction in central vision is present. This is most frequently found in cases of pronounced hypermetropia, or in cases in which unilaterally, there is only sufficient vision for finger-counting, this being complicated by strabismus (amblyopia exanopsia). Treatment, where possible, should consist partly in optical adjustment with cor- recting lenses, and partly in monocular use of the imperfectly functioning organ. A form of amblyopia from want of use is also observed in old corneal opacities. In such cases, an optical iridectomy or a tattooing of the cornea be- comes the requisite treatment. In toxic amblyopias, defects in the visual field char-