The toxic amblyopias: their classification, history, symptoms, pathology, and treatment . Visual field of Gallemaertss case of amblyopia from bisulphide of carbonpoisoning. Large central color-scotoma, and the limits of the peripheralfield for form and colors. In several instances, especially in those recorded by Nuel,Leplat, and Gallemaerts, the patients were young (six- AMULYOlIA FROM Ills r LIII IDE OF (A I! HON. Ill teen to twenty-three years), and used neither alcohol nortobacco. Therefore, in them, at least, the bisulphide ofcarbon was responsible for the visual defect. In the listof cas
The toxic amblyopias: their classification, history, symptoms, pathology, and treatment . Visual field of Gallemaertss case of amblyopia from bisulphide of carbonpoisoning. Large central color-scotoma, and the limits of the peripheralfield for form and colors. In several instances, especially in those recorded by Nuel,Leplat, and Gallemaerts, the patients were young (six- AMULYOlIA FROM Ills r LIII IDE OF (A I! HON. Ill teen to twenty-three years), and used neither alcohol nortobacco. Therefore, in them, at least, the bisulphide ofcarbon was responsible for the visual defect. In the listof cases analyzed by the Committee of the Ophthalmo-logical Society of the United Kingdom, although severalof the patients are noted as smokers, none are said to have Fig. 37. B. /•:.. /;/„,. Red ( %g? :.:?? vtfaith Surrounding ScotomaWii. •j.::\.&& Zones for blue, red, Green Visual field of Uhthofts case of amblyopia from bisulphide of carbonpoisoning. Absolute central defect, surrounded by a scotoma-zone for blue,red, and green. been drinkers, one was a total abstainer, and several aredescribed particularly as being temperate. I have reacheda similar result in my collection. The form of the scotoma differs somewhat from thatof tobacco-amblyopia, although like the tobacco-scotomait is usually more produced on the temporal than on thenasal side of the fixation spot. Given the case of a worker exposed to the fumes in thecuring-room of a caoutchouc manufactory, with defectivevision, which appeared with other symptoms of chronicpoisoning (for the visual defect seems never to be theonly sign of the toxaemia), with central scotoma, espe- 112 TOXIC AMBLYOPIAS. cially for red and green, but also, at times, for white,blue, and yellow, there is little doubt t
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