Final answer:
The optic nerve fibers transmit visual information to the brain from the retina, where light is converted into electrical signals by the rods and cones.
Step-by-step explanation:
Optic nerve fibers transmit visual information to the brain from the retina. The retina, located at the back of the eye, is a light-sensitive layer where photoreceptor cells called rods and cones are situated. These cells convert light into electrical signals. The signals from rods and cones are processed by other retinal neurons and then transmitted via axons of the retinal ganglion cells to form the optic nerve. The optic nerve is responsible for carrying these signals to the brain for visual perception. Light first passes through the cornea and the lens, which focus it onto the retina. The iris, containing the pupil, regulates the amount of light entering the eye. However, it is the retina that is responsible for the initial conversion of light into neural signals that the optic nerve will transmit to the brain.