Cases illustrating various types of scotoma in the visual field : portion of a lecture on "The visual field as a factor in diagnosis" delivered before the J. M. Da Costa Medical Society of the Jefferson Medical College / by G. E. De Schweinitz.

  • De Schweinitz, G. E. (George Edmund), 1858-1938.
Date:
[1894?]
Catalogue details

Licence: Public Domain Mark

Credit: Cases illustrating various types of scotoma in the visual field : portion of a lecture on "The visual field as a factor in diagnosis" delivered before the J. M. Da Costa Medical Society of the Jefferson Medical College / by G. E. De Schweinitz. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    marked peripheral contraction and ring scotomas, on one side partially relative, differing considerably in shape from those which existed half a year before. Fig. 12. Fig. 13. Diagrams of the visual fields of Case III., illustrating large ring scotomas. Remarks.—The visual fields presented in this case represent studies made at irregular intervals during five years. Naturally, on account of their peculiar character, a suspicion may be entertained that the maps Fig. 14. Fig. 15. Diagrams of the visual fields of Case III., illustrating the final shape which the ring scotoma assumed. are inaccurate, because any one who has had much experience in examining the visual field readily understands that exactness in finding the limits of scotomata, or the precise position of a dividing line between a darkened and preserved area, is a matter of extreme diffi- Vol. III. Ser. 4.—21