Final answer:
The axons of retinal ganglion cells form the optic nerve.
Step-by-step explanation:
The axons of retinal ganglion cells form the optic nerve. These ganglion cells connect to bipolar cells in the retina, which in turn connect to the photoreceptor cells (rods and cones). The axons of the retinal ganglion cells collect at the optic disc and exit the eye as the optic nerve, carrying visual information from the retina to the brain.