Origin:
•Function:
–Purely sensory
–Impulse for vision
•Clinical testing:
–Vision & visual field
–Pupillary light reflex
–Opthalmoscope: Papilledema (swelling of optic disc), blood vessels
•Clinical ccorrelation:
–Ipsilateral blindness & loss of direct pupillary light reflex
–Increased intracranial pressure (e.g. tumor)