Observations on miners' nystagmus and its cause; congenital ocular defects; and other papers / by Simeon Snell.

  • Snell, Simeon, 1851-1909.
Date:
1884
Catalogue details

Licence: Public Domain Mark

Credit: Observations on miners' nystagmus and its cause; congenital ocular defects; and other papers / by Simeon Snell. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

    9/54
    Bony tumour of conjunctiva (microscopical section), Florence W—, set. 13, was admitted into the Sheffield General Infirmary on September 30th, 1882. Her mother informed me that since earliest infancy she had observed in the right eye “ a piece of skin,” which protruded when the child turned the eyes to the left. There had been no complaint of pain, and no notice was taken of the con- dition mentioned, until a few weeks previous to coming under my care, since which time it has appeared to have increased in size and has become more inconvenient. Examination disclosed a tumour situated beneath the con- junctiva, between the cornea and the external canthus, and somewhat under cover of the upper eyelid. It was more distinct when the eye was turned inwards. It was about the size of an almond or less, and felt hard at the centre. On October 2nd the conjunctiva was divided and the growth readily removed ; the wound was closed by sutures. On the 6th she left the infirmary. The growth consisted of adipose and fibrous tissues, with a central hard nucleus about the size of a large pea; it was surrounded by a fibrous covering (periosteum). Dr. J. B. Story, of Dublin, kindly made for me the beautiful section of the hard nucleus which I show this evening. It is an excellent example of true bone. It presents Haversian canals, lacunae, and canaliculi of typical character. The presence of a tumour containing true bone in the situation of the case related must be very rare. Mr. Anderson Critchett, in the f Transactions/ vol. ii, relates