System of Diseases of the Eye Volume 4

System of Diseases of the Eye Volume 4

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1900 edition. Excerpt: ...Neither Dyer2 nor Green3 found intra-ocular hemorrhages in subjects that had been executed by hanging, although the latter observer noted numerous minute hemorrhages in the conjunctiva. In strangulated rabbits and dogs Baquis4 found serous infiltration of all the elements of the retina with a few extravasations from the distended veins. Forster,5 however, mentions the finding of numerous retinal hemorrhages after death from suffocation. The effect, however, is different when the cause of the congestion is within the eye itself, as in the case of thrombosis of the central retinal vein, which will be described later. The congestion resulting from collapse and from paralysis of the vessels belongs to the condition known as acute passive hypersemia. This is observed, --1. In sudden diminution of intra-ocular tension. That form of diminished tension caused by operative incision into the eyeball has practical significance, as reported by Leber.6 The writer's observations in this line have been, that this hyperaemia in normal eyes is only slight, and that it is principally confined to the veins; only leading to extravasation of blood when the vessels are diseased, and in glaucoma. Retinal hemorrhages often occur in glaucomatous eyes after iridectomy, these being due to abnormal rigidity of the vessels (senile sclerosis). Under similar conditions disastrous chorioidal hemorrhages occasionally occur during cataract operations. 1 Die Ophthalmoscopie in der inneren Modicin, 1893. 'Transactions of the American Ophthalmologic Society, 18G6, p. 13, and 1869, p. 27. Ibidem, 1875, p. 354. Annali di Ottalmologia, 1891, p. 421. 5 Handhuch der gesammten Augenheilkunde, Band iii. S. 63. Ibidem, ii. p. 350. 2. Hyperaemia from paralysis of the vessels may follow...
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Product details

  • Paperback | 480 pages
  • 189 x 246 x 25mm | 848g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236604261
  • 9781236604262