Rupture of the sphincter of the iris and v-shaped rupture of the choroid on the nasal side from contusion of the eyeball / by G. E. de Schweinitz.

  • De Schweinitz, G. E. (George Edmund), 1858-1938.
Date:
[1900?]
Catalogue details

Licence: In copyright

Credit: Rupture of the sphincter of the iris and v-shaped rupture of the choroid on the nasal side from contusion of the eyeball / by G. E. de Schweinitz. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    RUPTURE OF THE SPHINCTER OF THE IRIS AND V- SHAPED RUPTURE OF THE CHOROID ON THE NASAL SIDE FROM CONTU- SION OF THE EYEBALL * By G. E. De SCHWEINITZ, M. D. PHILADELPHIA. The frequency of choroidal rupture is variously stated by statisti- cians: Thus, E. Paunf gives the following figures: Hulse enumer- ates among 28,000 eye diseases in the Kiel clinic 22 cases of choroidal rupture; Knapp more than 12 choroidal ruptures among 18,000 patients; Hughes one rupture among 1,000 patients; while Pohlenz reports 46 ruptures among 5,000 patients. Combining these figures, we have 52,000 eye diseases and 81 choroidal ruptures, or about 0.155 per cent. Mooren gives the percentage as 0.014 (16 ruptures among 108,416 patients) and Cohn as 0.08 (8 ruptures among 100,000 eye diseases). As is well known, choroidal ruptures usually occur on the temporal side of the disc, comparatively rarely oh the nasal side, and very seldom in the horizontal direction. Hughes's statistics in this respect are interesting, viz.: temporal rupture, 82 per cent., nasal rupture 14 per cent., horizontal rupture 4 per cent. Rupture of the sphincter producingmydriasis and minutenotchings of the pupil border is more common than choroidal rupture. It is the lesion which probably always accompanies permanent dilatation of the pupil after a blow,—the so-called traumatic mydriasis Mooren reports 87 examples among 108,416 eye patients, and Cohn 29 cases among 100,000 eye diseases. I have no statistics to show the frequency of the association of iris- sphincter rupture and choroidal rupture; nor do I know of any which have been collected. I think this double lesion must be comparatively uncommon. Personally, I have not observed it before the patient whose history follows presented herself for treatment. Mrs. L., aged 31, married, reported for treatment on November 13, 1897, and gave this account of her ocular disabilities: Three weeks prior to her visit to my office, while standing behind of a golf player, she was struck in the left eye with the metal end of a golf club on the upward swing. * Read before the Ophthalmic Section of the College of Physicians of Phila- delphia, March 26, 1901. t Die Verletzungen des Auges, Wiesbaden, 1899, p. 131. I 6 i 2- \