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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    vessel formation and even granulations. Sometimes it is found on the cornea itself. 3. Kcchytnoses of the conjunctiva (hyphasma conjunctivae, Plate 14, b) are quite common, either as the result of injuries, sucli as scratches or cut-wounds, or from stasis of tlie blood during a paroxysm of whooping- cough, or ordinary cough iu elderly peo})le with weak vessel-walls. It has been observed especially in persons 'who are the subjects of marked arteriosclerosis with or with- out nephritis, and who usually die of apoplexy ; hence the })henomenon is significant from a diagnostic point of view. Wounds of the conjunctiva should be closed with sutures as soon as possible. 3. Bums, caused by molten lead or iron, hot ashes, etc., or by acids and alkaline lyes, and })articularly by slaked or unslaked lime (mortar), are among the common- est accidents. The usual seats are the lower portion of the conjunctival sac and the lower segment of the cornea (Plate 19). The e])ithelium is destroyed and the necrotic tissue appears grayish or bluish-white, while the adjacent coujunctiva is intensely swollen and inflamed, and occasion- ally suffused with blood. Burns on the cornea give rise to similar whitish spots; these .soon lo.se their epithelial cov- ering (Plate 19, b), ulcers are formed, and a cicatricial opacity results, which, if .situated in the center, may in- terfere .seriously with visual acuity. In the conjunctiva the injury is followed by cicatricial coutractious, shorten- ing of the mucous membrane, general shrinking of the conjunctival .sac, and the (hivelopment of symblepharon. In the cornea the eroded area sometimes becomes cov- ered by a process of conjunctiva, forming a so-called pscudopterygimn. Treatment.—The ultimate effects of a lime-burii are much more serious than appears at the fir.st glance, and great care is therefore necessary in the treatment. The injured eye must not be washed with water, as such a ])ro- ceeding would di.ssolve more of the caustic material and diffuse it over the conjunctival .sac. The cleansing is best