optic nerve

Eye-to-brain pathway

The optic nerve is the bundle of nerve fibers that carries visual information from the retina to the brain.

Each eye has its own optic nerve, and damage to it can cause partial or complete blindness in that eye.

The tumor was pressing on her optic nerve.

anatomy

retina

Light-sensing tissue layer

  • ganglionPeripheral nerve cell cluster
  • axonNeuron's signal-sending projection
  • myelinNerve fiber insulation

chiasm · tract · papilla · disc · head · sheath · fiber · bundle · pathway · cranial

function

signal

Message-conveying cue

relay · processing · encoding · photoreceptor · rod · cone · brightness · contrast · color · depth

pathology

neuritis

Inflamed neural tissue disorder

inflammation · damage · compression · degeneration · glaucoma · ischemia · demyelination · lesion · hypoplasia · glioma

clinical

ophthalmology

Medical specialty for eyes

examination · pupil response · cupping · pallor · edema · screening

Categories
Opposites
sensory nerve type

optic nerveauditory nerve

Neural pathway for hearing

olfactory nerve · vagus nerve

visual pathway components

optic nervevisual cortex

Brain's sight-processing region

retina · occipital lobe · superior colliculus · photoreceptors

nerve function direction

optic nervemotor nerve

Neuron controlling muscle action

facial nerve

Family

nerve, optical, optic, optics, optician, optometrist, optometry, opticians, optically

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