Hand-Book of the Anatomy and Diseases of the Eye and Ear, for Students and Practitioners

Hand-Book of the Anatomy and Diseases of the Eye and Ear, for Students and Practitioners

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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. 1904 edition. Excerpt: ...by tumors beneath it; by concussion from blows on it; by contraction of scar-tissue, and so forth. It may be partial or complete. OPHTHALMOSCOPIC PICTURE. With the ophthalmoscope an ordinary partial detachment appears as a tremulous, bluish-gray sac projecting into the vitreous, with retinal vessels bending over it, and surrounded by a red choroidal reflex. Very small detachments may appear as fine, gray streaks. In total detachment no reflex can be obtained from the fundus at all and the light-streak on the retinal vessels is absent. The symptoms complained of are a floating cloud before the eye, metamor-phopsia, and loss of vision in the part of the field opposite to the detachment. Thus, if the lower half of the retina is detached, the upper half of the field will be absent. The prognosis is unfavorable. The tendency of detachment is to increase. Only exceptionally it ruptures or subjacent fluid is absorbed and the retina falls back into place and some degree of sight is restored. Treatment.--The treatment is chiefly expectant. Success has been reported from keeping the patient for a long time on his back with eyes bandaged, atropin instilled, using hypodermic injections of pilocarpin; and also from the operation of passing a needle or cataract knife in through the sclera and opening the sac so as to allow the fluid to escape and the retina to fall back into place. Detachment of the retina usually means, except in traumatic cases, that an unsound condition of the eye, especially of the vitreous, has preceded the accident, hence the usually unfavorable prognosis. EMBOLISM OF THE CENTRAL ARTERY OF THE RETINA. This causes sudden blindness without pain or irritation. The optic disc appears blanched, and the retinal vessels reduced and more or less...show more

Product details

  • Paperback | 78 pages
  • 189 x 246 x 4mm | 154g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • Illustrations, black and white
  • 123666311X
  • 9781236663115