Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
[Jan Piltz, Polish neurologist, 1870–1931]
Change in the size of the pupil on sudden fixation of attention. Synonym: pupillary reflex
Piltz,Jan, Polish neurologist, 1870-1931.
Piltz reflex - a pupil's attention reflex.
Piltz sign - constriction of both pupils when an effort is made to close eyelids forcibly held apart. Synonym(s): eye-closure pupil reaction; Westphal-Piltz phenomenon; Westphal pupillary reflex
Westphal-Piltz phenomenon - Synonym(s): Piltz sign