visual system
Technical term in anatomy and neuroscience for the sensory system responsible for vision, including the eyes, optic nerves, and visual cortex. The gloss 'ophthalmencephalon' is an older, rare synonym.
Disorders of the visual system greatly affect daily life.
This research investigates the developmental process of the visual system.
聴覚系 is the auditory system, the parallel sensory system for hearing.
Compound of 視覚 (vision) + 系 (system). A straightforward modern technical term.