Medical Record Volume 12

Medical Record Volume 12

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1877 edition. Excerpt: ...determined by the ophthalmoscope. Does Dr. Bull claim that by the flash of his mirror he is able to declare the absence of any refractive error in this restless babe? This would indeed be a remarkable achievement. It is true that ophthalmologists are accustomed in their daily practice to make by the ophthalmoscope approximate determinations of refractive conditions, especially in cases of gross refractive errors, and it is true also that in the hands of the most expert, and under the most favorable circumstances conceivable, even low degrees of astigmatism may be determined by this method, but it will be hard for Dr. Bull to convince ophthalmologists of experience that he has or can determine emmetropia in this infant. But this is not the only case in which the author claims to have attained results which, in the nature of things, must be extremely doubtful. In the examination of at least twelve eyes reported in this paper, the circumstances of the cases render it extremely improbable, not to say impossible, for reasons above stated, that he should have determined emmetropia, as he claims to have done. Nor are these the only cases reported, upon which grave suspicion as to scientific accuracy must rest; but surely these are sufficient to render it certain that in this series of cases the methods of observation have been extremely loose and unreliable. There is, however, one portion of the paper in question which merits attention. In the " Martin " family are eight living children; of these four are stated to be hypermetropic, and four emmetropic. Is it not a striking fact that of the four hypermetrops three have chorea, while no chorea is found among the four emmetrops? We are told that in five of the cases observed glasses for...show more

Product details

  • Paperback
  • 189 x 246 x 46mm | 1,610g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236920422
  • 9781236920423