On the origin of ruptures in detached retinae / by E. Treacher Collins.

  • Collins, E. Treacher (Edward Treacher), 1862-1937.
Date:
[1896]
Catalogue details

Licence: Public Domain Mark

Credit: On the origin of ruptures in detached retinae / by E. Treacher Collins. 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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    Reprinted from Vol. XVI of the ' Ophihalmological Society's Transactions.''] On the origin of ruptures in detached retinse. By E, Treacher Collins. The occurrence of ruptures in detaclied retinae was first noted by von G-raefe^ in the early days of oplithalmoscopic research. The appearances presented in such a case were shortly afterwards pictured and described by Liebreichf in his well-known atlas. The frequency with which ruptures in detached retinee can be seen has been estimated by GalezowskiJ and by Nordenson.§ The former found 131 ruptures in 649 eyes with detachment of the retina, or in 20 per cent. The latter noted forty-six ruptures in 119 eyes, or 38 per cent. Von Graefe's explanation of the formation of the rup- tures was that they are caused by the tension of the sub- retinal fluid, which he regarded as an exudation from the choroidal vessels. De Wecker thinks that a rupture in the retina precedes the detachment, which latter is brought about by the passage outwards through the rupture of fluid which has collected between the shrunken vitreous and the retina. His objection to the older theory that detachment is due to choroidal effusion, is that it necessitates the disap- pearance of a corresponding quantity of the vitreous humour. Leber and Nordenson have accepted de Wecker's views, and according to them a rupture in the retina is due to traction on it from bands which have formed in a shrinking vitreous. The almost invariable turning in of the margins of the rupture is, according to them, evidence of traction from the vitreous. * • Arcb. f. Ophthal.,' Bd. i, Ab. 1, s. 358. t PI. vii, fig. 1. X ' Recueil d'Ophtal.,' 1883, p. 669. § ' Die NetzhautabloBung,' 1887.