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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    bianco to strcot-j)avcmoiit). consist of hard, flat- tened masses, pinkish in color, and upon close inspection arc seen to be slightly j)ednnculated (Plate 15, b). The .'Surface of’ these granulations often exhibits a bluish tint, which may extend over the rest of the tarsal conjunctiva, constituting the third syni})tom, viz.: Milhij ojxicifti, in some places like a delicate can- Icrization-filni, in others resembling a plate of smootli, blnish-white enamel (Plate 15, c). These symptoms are not always found associated in every case. Any one of the three groups may be wanting, or they may be ])resent in varying degrees of intensity. The hypertrophied limbus may encroach upon and ])racti- cally conceal the cornea on all sides; or this symptom may be absent altogether and the granulations on the tarsal conjunctiva may attain such proportions as to cause ulcer- ations in the cornea by their friction (rarely). In other cases they may be very few in number, scattered here and there in small groups, while the intervening tissue exhibits the milky opacity which has been described. The limbus-form is often followed by the formation of a small crescentic opacity in the cornea, running parallel to the periphery and resembling a segment of arcus senilis ; it often persists for years after the disease has run its course. A more or less constant .symptom is found in the mneons or mucopurulent secretions which collect in threads on the retrotarsal folds and surrounding tissues. This gives ri.se to some of the symptoms seen in catarrh, as itching, stinging and burning pain.s, inability to do fine work, and gluing of the lids in the morning. General aggravation of the sym])toms usually follows exposure to excessive heat. The disorder a])pcars to be influenced more by heat than by the direct action of the sun, the patients suffering le.ss severely in high altitudes in s])ite of the greater ])ower of the sun’s rays. The diagnosis is based on the state of the weather and the pathologic changes de.scribed. The disease is some-