Gunn sign

Gunn sign
1. Gunn crossing s. 2. Marcus Gunn pupillary phenomenon. 3. see under syndrome.

Medical dictionary. 2011.

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  • Sign — Any abnormality that indicates a disease process, such as a change in appearance, sensation, or function, that is observed by a physician when evaluating a patient. * * * 1. Any abnormality indicative of disease, discoverable on examination of… …   Medical dictionary

  • Gunn crossing sign dots pupil etc. — (gun) [Robert Marcus Gunn, British ophthalmologist, 1850–1909] see under dot, sign, and syndrome; see Marcus Gunn pupil, under pupil; and see Marcus Gunn pupillary phenomenon, under phenomenon …   Medical dictionary

  • Gunn pupillary sign — Marcus Gunn pupillary phenomenon …   Medical dictionary

  • Gunn — Robert Marcus, British ophthalmologist, 1850–1909. See G. phenomenon, G. dots, under dot, G. sign, G. syndrome, Marcus G. pupil …   Medical dictionary

  • Gunn crossing sign — a crossing of an artery over a vein in the fundus of the eye, indicative of essential hypertension …   Medical dictionary

  • Marcus Gunn pupil — Classification and external resources The left optic nerve and the optic tracts. A Marcus Gunn pupil indicates an afferent defect, usually at the level of the retina or optic nerve. Moving a bright light from the unaffected eye to the affect …   Wikipedia

  • James Gunn (filmmaker) — Infobox Writer name = James Gunn imagesize = 225px caption = James Gunn (in green), with Jenna Fischer, and actor Nathan Fillion, sign autographs at Fangoria s Weekend of Horrors Convention, 2006 pseudonym = birthdate = birth date and… …   Wikipedia

  • Marcus Gunn phenomenon — For the pupillary defect, see Marcus Gunn pupil. Marcus Gunn phenomenon Classification and external resources Nerves of the orbit, and the ciliary ganglion. Side view. (Trigeminal nerve and oculomotor nerve both …   Wikipedia

  • Robert Marcus Gunn — (1850, Dunnet – 29 November 1909, Hindhead) was a Scottish ophthalmologist remembered for Gunn s sign and the Marcus Gunn pupil. Contents 1 Biography 2 See Also 3 External links …   Wikipedia

  • Marcus Gunn pupillary phenomenon — 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 …   Medical dictionary

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