Licence: Public Domain Mark
Credit: The ophthalmoscope and lues / by Ole B. Bull. Source: Wellcome Collection.
Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.
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![Affections of the Optic Nerve in the later stages of Syphilis. The term, Neuritis optica, is stiil used by different au- thors with a different meaning. While some have accepted the classification of v. Grcefe more than 20 years ago, accord- ing to which they distinguish between a Choked Disc, or a Passive Hyperemia, and a Neuritis optica, or Neuritis des- cended] others contend against the possibility of maintaining this distinction, since the ophthalmoscopical changes may be alike in both. Xo doubt the opinion maintained by the latter holds good in some cases; as it may be impossible sometimes, by means ot the ophthalmoscope alone, to distinguish between a real inflammation and a passive hyperaemia1). Still I should not think it advisable to dispense with the term Choked Disc (Stauungspapille), as signifying an ophthalmoscopical appear- ance, different from that usually observed in a true neuritis. Consequently I shall use both terms; indicating by Choked Disc, a state of passive hyperaemia, in which the pathological changes are seen to be confined to the optic disc, and its adjacent parts. The disc itself is found to present an even prominence, 1) In Lond. Ophth. Rep. Vol. VI p. 100 Dr. Hulke reports a case illustra- ting the correctness of this. The ophthalmoscope showed the appearance typical for a passive hyperemia; but the post mortem examination revealed a post ocular neuritis, the nerves being considerably minified in their course within the orbit and the cranium.](https://iiif.wellcomecollection.org/image/b21044430_0043.jp2/full/800%2C/0/default.jpg)