Synonyms of light reflex

Noun

1. light reflex, pupillary reflex, miosis, myosis, reflex, reflex response, reflex action, instinctive reflex, innate reflex, inborn reflex, unconditioned reflex, physiological reaction

usage: reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller