Unilateral Sluggish Pupillary Response
One pupil constricts significantly slower than the other when exposed to light, suggesting nerve compression potentially caused by a growing tumor.
Description
The examiner shines a small light into the patient's eyes to observe the speed and symmetry of pupillary constriction. Originating from early neurological physical exams, it tests the integrity of the optic and oculomotor cranial nerves. It provides immediate clues about increased intracranial pressure or localized brain lesions.