TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

GUNNS SIGN [2 records]

Record 1 2017-05-12

English

Subject field(s)
  • Symptoms (Medicine)
DEF

With unilateral optic nerve or retinal disease, a difference between the pupillary reflexes of the two eyes when a light is shone alternately into each one with the other eye covered; on the affected side there is abnormally slight contraction or even dilation of the pupil.

French

Domaine(s)
  • Symptômes (Médecine)
CONT

En éclairant rapidement l'œil atteint ensuite (dont la pupille est d'abord contractée), on observera une dilatation de la pupille: le temps que le nerf optique envoie son message au 3e nerf, la pupille aura eu le temps de dilater... C'est ce qu'on appelle un déficit pupillaire afférent ou pupille de Marcus Gunn. La découverte de ce signe signifie toujours une atteinte du nerf optique ou une atteinte sévère de la rétine.

Spanish

Save record 1

Record 2 2017-05-12

English

Subject field(s)
  • Symptoms (Medicine)
  • The Eye
DEF

The constriction of a retinal vein at artery-vein-crossing.

CONT

AV nicking: The most commonly accepted belief is that the crossing phenomenon was due to venous compression by a thickened arteriole within the shared sheath (the Gunn sign). Impeded circulation results in a dilated or swollen vein peripheral to the crossing, causing hourglass constrictions on both sides of the crossing and aneurysmal-like swellings.

OBS

arteriovenous nicking: term recommended by the Medical Signs and Symptoms Committee.

Key term(s)
  • A-V nicking

French

Domaine(s)
  • Symptômes (Médecine)
  • Oeil
CONT

Occlusion de la veine centrale de la rétine et de ses branches (OVCR). [...] On retrouvera souvent sur le même œil ou sur l'autre œil des signes d'artérioloscérose majeurs (signes du croisement artério-veineux, avec des veines dilatées et dont le trajet est dévié en baïonnette, car comprimées par une artère rigide), des artères moniformes, irrégulières, rigides.

OBS

signe du croisement : terme privilégié par le Comité de sémiologie médicale.

Key term(s)
  • signe du croisement artérioveineux

Spanish

Campo(s) temático(s)
  • Síntomas (Medicina)
  • Ojo
Save record 2

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Features

Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: