pupil response
Iris opening change
Pupil response is the automatic change in pupil size reacting to stimuli—most commonly light.
In bright conditions, pupils constrict; in darkness, they dilate.
Medical professionals check pupil response to assess neurological function: The paramedic shone a light to test pupil response.
Pupils also respond to emotional arousal, cognitive effort, and certain drugs.
- dilationWidening of an opening
- constrictionTightening or narrowing action
- irisEye's pigmented disc
- reflexInvoluntary stimulus response
- lightVisible electromagnetic radiation
direct light · darkness · eye · optic nerve · neurological · flashlight · accommodation · reactive · fixed · pinpoint · blown · brain · head injury · concussion · drug · opiate · drug test · adrenaline
- medical examsphysical exam, annual physical, annual checkup, checkup, wellness visit
- medical signsmurmur, edema, jaundice, cyanosis, pallor
- physical exampalpation, auscultation, percussion, vital signs, vitals
- clinical assessmentsvital signs, blood pressure, heart rate, pulse, respiration
- ICU Monitoringheart rate, blood pressure, respiratory rate, oxygen saturation, pulse
- Neuro Examsneurological exam, reflex test, CT scan, brain scan, cognitive test