pupilreaktion
Pupil reaction, sometimes written as pupilreaktion in some contexts, describes the changes in pupil size in response to light and focusing tasks. The most studied aspect is the pupillary light reflex, which adjusts the amount of light entering the eye to optimize vision and protect retinal cells. Pupil size also varies with accommodation, arousal, and autonomic tone.
The neural circuit for the pupillary light reflex begins with retinal photoreceptors that send signals via
Clinically, pupillary reactions are assessed by directing a light into one eye and observing the direct constriction
Pupillary reactivity is a core part of neurological examination and reflects brainstem integrity, cranial nerve function,