The nerve that communicates vision to the brain from the retina is the

The nerve that communicates vision to the brain from the retina is the

• A. Optic nerve
• B. Lens
• C. Iris
• D. Cornea

Answer: (A)

Transport of visual information from the retina to the brain is carried by the optic nerve. After light is detected by photoreceptors in the retina, the resulting neural signals travel through retinal ganglion cells whose axons bundle together to form the optic nerve. This nerve exits the eye and routes the signals toward the brain, where the visual cortex processes what we see. The other structures—lens, iris, and cornea—play roles in focusing and regulating light but do not transmit visual information to the brain.

Transport of visual information from the retina to the brain is carried by the optic nerve. After light is detected by photoreceptors in the retina, the resulting neural signals travel through retinal ganglion cells whose axons bundle together to form the optic nerve. This nerve exits the eye and routes the signals toward the brain, where the visual cortex processes what we see. The other structures—lens, iris, and cornea—play roles in focusing and regulating light but do not transmit visual information to the brain.