optic nerves
Sight signal pathways
Optic nerves are the paired bundles of nerve fibers that carry visual information from the eyes to the brain.
Each eye has one optic nerve connecting the retina to the visual processing centers.
Damage to the optic nerve—from glaucoma, injury, or disease—can cause partial or complete vision loss: The tumor was pressing on her optic nerve.
- quadrantanopiaBlindness in visual quarter
- retinaLight-sensing tissue layer
- axonsNeuron output extensions
- visionAbility to see
- sightVisual perception faculty
seeing double · scotoma · iris · demyelination · visual field testing · eye exam · visual cortex · cornea · ophthalmoscope · photoreceptors · macula · blind spot · impulses · pupil · disc · retinal detachment · brain · signals