Wernicke's pupillary reaction
The absence of direct reaction to light in the blind part of the retina.
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.
- H. Wilbrand:
Die Seelenblindheit als Herderscheinung und ihre Beziehungen zur homonymen Hemianopsie, zur Alexie und Agraphie.
hemianopischen Gesichtsfeldformen und das optische Wahrnehmungscentrum.
- C. Wernicke:
Über hemiopische Pupillenreaktion.
Fortschritte der Medicin, 1883, 1: 49-53.
What is an eponym?
An eponym is a word derived from the name of a person, whether real or fictional. A medical eponym is thus
any word related to medicine, whose name is derived from a person.
What is Whonamedit?
Whonamedit.com is a biographical dictionary of medical eponyms.
It is our ambition to present a complete survey of all medical phenomena named for a person,
with a biography of that person.
Whonamedit? does not give medical advice.
This survey of medical eponyms and the persons behind them is meant as a general interest site only.
No information found here must under any circumstances be used for medical purposes, diagnostically,
therapeutically or otherwise. If you, or anybody close to you, is affected, or believe to be
affected, by any condition mentioned here: see a doctor.