Marcus Gunn pupillary sign
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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
Gunn pupillary sign — Marcus Gunn pupillary phenomenon … 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
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
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
Gunn sign — 1. Gunn crossing s. 2. Marcus Gunn pupillary phenomenon. 3. see under syndrome … Medical dictionary
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
swinging flashlight sign — Marcus Gunn pupillary phenomenon … Medical dictionary
syndrome — The aggregate of symptoms and signs associated with any morbid process, and constituting together the picture of the disease. SEE ALSO: disease. [G. s., a running together, tumultuous concourse; (in med.) a concurrence of symptoms, fr. syn,… … Medical dictionary
phenomenon — 1. A symptom; an occurrence of any sort, whether ordinary or extraordinary, in relation to a disease. 2. Any unusual fact or occurrence. [G. phainomenon, fr. phaino, to cause to appear] adhesion p. a p. manifested by the adherence of antigen… … Medical dictionary
