which nerve carries visual information from the retina to the brain?

The nerve that carries visual information from the retina to the brain is the optic nerve, also known as the second cranial nerve (CN II). It is responsible for transmitting the signals generated by photoreceptor cells in the retina to the brain, where the information is processed into visual images. The optic nerve starts at the retina and extends to the brain, where it passes through structures such as the optic chiasm and the lateral geniculate nucleus before reaching the visual cortex for interpretation.