File:Atlas and epitome of operative ophthalmology (1905) (14802472633).jpg

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Identifier: atlasepitomeofop00haab (find matches)
Title: Atlas and epitome of operative ophthalmology
Year: 1905 (1900s)
Authors: Haab, O. (Otto), b. 1850 De Schweinitz, G. E. (George Edmund), 1858-1938
Subjects: Ophthalmologic Surgical Procedures
Publisher: Philadelphia, New York (etc.) : W.B. Saunders and company
Contributing Library: University of California Libraries
Digitizing Sponsor: Internet Archive

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tion of modern methods of treatingwounds, this operation, which was formerly a much-dreaded one, in spite of its apparently trifling character,is, when properly performed, practically harmless and atthe same time a most satisfactory procedure. In manycases vision is not permanently restored until it has beenperformed. Its object is to perforate the membrane whichremains behind in the pupillary region after a cataractoperation, or makes its appearance later, becomes thick-ened and interferes with vision, so that the center of thepupil finally is freed of everything capable of obstructingthe light. Even the posterior capsule alone, if it formswrinkles or possesses or develops areas of thickening, mayprove a serious obstacle to vision, and, if to this are super-added remains of the anterior capsule, epithelial prolifera-tions of the latter, causing still further thickening, andremains of cortical material, the result is often a con-tinuous, thin, grayish membrane, which may easily reduce
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OPERATION FOR SECONDARY CATARACT. 167 vision to \ or \, even when there is no inflammation inthe case. If the operation is followed by iritis, the sec-ondary cataract may be even thicker. In myopic individuals more or less secondary cataractis the rule. The persistence of large remains of cortical matter doesnot always produce a secondary cataract. A very clearpupil may be formed in spite of them, even though it takessome time, provided only there is no inflammation. Thisis probably explained by the fact that the cortical remainskeep the anterior capsule and its proliferating capsularcells away from the posterior capsule for some time andhold the edges of the tear in the anterior chamber apart,so that the capsular cells are unable to form deposits onthe posterior capsule, and after the remains have beenabsorbed the posterior capsule remains perfectly clean. The indication for discission of a secondary cataract orof a wrrinkled posterior capsule depends on the accuracyof vision that is

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Haab, O. (Otto), b. 1850;

De Schweinitz, G. E. (George Edmund), 1858-1938
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30 July 2014


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