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Wernicke's pupillary reaction
Also known as:
Wernicke's sign
Associated persons:
Carl Wernicke
Description:
The absence of direct reaction to light in the blind part of the retina. This occurs in hemianopsies, which are caused by a lesion in the tractus opticus.
First discovered in 1881 by Hermann Wilbrand (1851-1935), and again in 1883 by Wernicke.
Bibliography:
- H. Wilbrand:
Die Seelenblindheit als Herderscheinung und ihre Beziehungen zur homonymen Hemianopsie, zur Alexie und Agraphie.
Wiesbaden, 1886.
hemianopischen Gesichtsfeldformen und das optische Wahrnehmungscentrum.
Wiesbaden, 1890.
- C. Wernicke:
Über hemiopische Pupillenreaktion.
Fortschritte der Medicin, 1883, 1: 49-53.
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