Inhaltsangabe
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. 1864 Excerpt: ...of the body, than is normally the case. Sometimes this point is removed almost to the inner margin of the papilla, and is therefore dislocated in the direction of the axis of the optic nerve. The reflection of light from a concavity is always on the side which the rays strike in a perpendicular direction; and hence the point of exit of the vessels is in such cases always the brightest, as well as the deepest, portion of the pit. Very complete observations upon this subject have been made by Ed. Jaeger,--whose results, differing in some respects from those of others, are here subjoined. At this point Dr. Zander quotes from Professor E. Jaeger nearly sixty paragraphs of extraordinary prolixity and tediousness. It would be easy, by the mere omission of repetitions and superfluous words, to condense them to half their bulk in translation, but even then they would be intolerable. I have determined, therefore, to substitute a brief summary of their contents:--Professor E. Jaeger recognizes two chief forms of excavation of the optic nerve: the congenital, and the acquired. The former may be real, or apparent, or both combined; and the latter may depend upon atrophy without intra-ocular pressure, or upon intra-ocular pressure, with or without atrophy. The last-mentioned variety he designates "glaucomatous." "1. Congenital excavations, which, in the eyes of new-born infants, are as clearly marked, and proportionately as extensive, as in adults, exhibit very considerable differences of general appearance, as well as of depth and superficies. Some of them are so slight as to be difficult of detection; and, if these be minutely searched for, there are but few eyes in which they may not be found. In other cases, the depression is more considerable, but it...
Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.
