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Medical Term:

Argyll Robertson pupil

Pronunciation: ar′gīl rob′ĕrt-sŏn

Definition: A form of reflex iridoplegia characterized by miosis, irregular shape, and a loss of the direct and consensual pupillary reflex to light, with normal pupillary constriction to a near vision effort (light-near dissociation); often present in tabetic neurosyphilis.

Synonym(s): Robertson pupil