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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    2. Secondary Glaucoma. Til is form of glaucoma may occur at any age and as a emu plication of various diseases. It manifests itself by cloudiness of the cornea, dilatation of the pupil (unless there are annular adhesions), and pain. Like the primary form, it may lead to loss of vision through excavation of the nerve-head. Secondary glaucoma is induced by the following condi- tions : 1. Any condition tending to draw or push the iris for- ward; anterior synechiae with corneal wounds, especially such as bulge forward, or pressure by swelling or subluxa- tion of the lens. 2. Posterior displacement of the iris by a lens which has entered the anterior chamber. .“3. Pupillary occlusion. 4. Iridocyclitis with precipitates on the i)Osterior sur- face of the cornea. 5. Mechanical irritation of the ciliary body by a lens in luxation or subluxation. 6. Intraocular tumors, sarcoma and alioma in the sec- ond stage (before rupture outward has occurred). The treatment of secondary glaucoma is chiefly directed to the relief of the condition which produced the rise in tension. Anterior synechiae must be se])arated or the attached portion of the iris excised (iridectomy). A dislocated lens in the anterior chamber is to be removed. Occlusion of the pupil demands an iridectomy to restore communication between the anterior and posterior cham- bers. In iritis combined with increased tension sclerotomy is indicated and often suffices to restore the normal pressure. DISEASES OF THE ORBIT. I. Inflammations. Inflammation may originate in the ])eriosteum of the orbit, or it may attack the contents of the orbit primarily.