Microphthalmos with cystic protrusion from the globe / by E. Treacher Collins.

  • Collins, E. Treacher (Edward Treacher), 1862-1937
Date:
[1897]
Catalogue details

Licence: Public Domain Mark

Credit: Microphthalmos with cystic protrusion from the globe / 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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    of retinal tissue through a gap in the choroid and sclerotic, the differences which they present, both as regards the character of the protrusion, and in the state of development or mal-development of the other struc- tures of the eyeball, are truly remarkable. The protuberant portion of retina consists of varying amounts, from simply a knuckle of tissue (Case 1, f Trans. Ophth. Soc.,' vol. xiii) to quite two thirds of that mem- brane (Case 1 in this paper, Fig. 1). In some cases it forms solid mass surrounded and intermixed with bands of fibrous tissue (Case 1, 1 Trans. Ophth. Soc.,' vol. xiii; Case 1 in this paper, Fig. 1). In others, folds of retina have become distended into one or more fluid-containing cystic protrusions, which are bounded externally by a fibrous-tissue coat, and have a very lobulated outline (Lang's [2] case; Case 2, ' Trans. Ophth. Soc.,' vol. xiii; Rolston's case; Case 2 in this paper). The degree of development of the protuberant retina is also very different in different cases. When folds of it have become distended in the form of cystic protrusions, it may be so atrophied as merely to be represented by a few groups of nuclear bodies and a little retiform tissue (Lang's [2] case ; Case 2, ' Trans. Ophth. Soc.,' vol. xiii). On the other hand, it may remain so well developed that some of its different layers are easily distinguished (Case 2 in this paper). In these latter cases it is found that sometimes the inner surface of the retina is turned towards the interior of the cyst (Rindfleisch [3]) and at other times just the reverse, the inner surface of the retina being directed towards the fibrous outer wall of the cyst (Case 2 in this paper; De Lapersonne [4] ; Czermak [5]). The region of the globe in which the protrusion is situated is nearly always its lower and posterior part, sometimes a little further forwards than others. In one case, besides the gap in the sclerotic there was a consider- able deficiency in the outer sheath of the optic nerve (Rolston's case).