Gunn phenomenon

Gunn phenomenon
see under syndrome.

Medical dictionary. 2011.

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  • 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

  • Marcus Gunn phenomenon — Gunn syndrome …   Medical dictionary

  • Gunn syndrome — unilateral ptosis of the eyelid, with the association of movements of the affected upper eyelid with those of the jaw; called also Gunn phenomenon, Marcus Gunn s. or phenomenon, and jaw winking s. or 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

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

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

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

  • Gunn effect — /ˈgʌn əfɛkt/ (say gun uhfekt) noun a phenomenon observable in some semiconductor devices in which a field of magnitude greater than a threshold value generates electrical oscillation with microwave frequencies. {named after John Battiscombe… …   Australian-English dictionary

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

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