Light Reflex

nounverified·updated May 18, 2026

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

Framework senses

1 sense across 1 framework

Wordset Dictionary1 senseview framework →

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