Light Response Pupil Test. The light response pupil test assesses the reflex that controls the size of the pupil in response to light.
Lesions that affect the inferior portions of the visual system (in the retina, optic nerve, or even visual cortex) cause superior visual field defects.
IThe optic pathway includes the retina, optic nerve, optic chiasm, optic radiations, and occipital cortex (see figure Higher visual pathways ).
Optic disc drusen does not requiretreatment, and patients generally have good visual prognosis.
The visual field defect seen in the chiasmal syndrome is typically a bitemporal hemianopsia.
Perimetry,Also known as: visual field test.