Atlas of the external diseases of the eye : including a brief treatise on the pathology and treatment / by O. Haab ; Authorized translation from the German, edited by G.E. de Schweinitz.

  • Haab O. (Otto), 1850-1931.
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: Atlas of the external diseases of the eye : including a brief treatise on the pathology and treatment / by O. Haab ; Authorized translation from the German, edited by G.E. de Schweinitz. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    conjunctiva and the cornea look as if they were sprinkled with glass-dust. As each individual pustule, whether large or small, is surrounded by a zone of inflammatory tissue, the ap])earance in this form—when the pustules are very minute—resembles the red injection and swelling of catarrh, so that the term coznnatoii,^ catarrh is used with great propriety. From the fact that the lids become much swollen and inflamed, these cases are also designated 'as catarrh with swelling. Eczematous catarrh sometimes occurs in combination with a more discrete eruption of larger jnistules. The ty|)ical eczema-pudulc or phlyctenule is circular in form, and, when recent, appears as a small, reddish-gray elevation capped with a layer of smooth epithelium. It is surrounded by a zone of marked conjunctival injection. On the second day after its aj)pearance the covering sepa- rates and is replaced by a small, circular mass of gray or yellow necrotic tissue (Plates 17 and 18). The yellow sj)ot gradually encroaches on the body of the pustule, so that the larger ones are eventually converted into small round ulcers, only slightly raised above the level of the conjunctiva. As the healing process goes on the pustides become more and more flattened, the inflammatory zone contracts, and the site of the ulcer is covered with new ejnthelium. The disease lasts from one to two weeks and never attacks the sclera. The cornea is very often affected, either alone or in as.sociation with the conjunctiva. In .some ca.ses only the cornea is attacked in one eye, and the conjunctiva, without the cornea, in the other. The cornea is most liable to be involved in the multiple form, characterized by the pre.s- euce of innumerable granular elevations. As in other parts of the body, the eczema is distin- guished by its occurrence in siiecesslre crops; pustules in all stages of dcvclo])ment are seen at the .same time with the scars of a former attack. The corneal eczema may be jirimarv, or .secondary to marginal eczema of the conjunctiva. The secondary form