Farsightedness NOT nearsightedness
Rods and cones are in the sensory components in the retina of the eye. They are essential to the sense of sight.
Retina
The optic nerve transmits visual date from the retina to the brain.
The optic nerve transmits visual impulses from the retina to the brain.
"The optics of the eye create an image of the visual world on the retina, which serves much the same function as the film in a camera. Light striking the retina initiates a cascade of chemical and electrical events that ultimately trigger nerve impulses. These are sent to various visual centers of the brain through the fibers of the optic nerve." http://en.wikipedia.org/wiki/Retina
smell
The short answer is that the interpretation of what you see occurs in the visual cortex, not in the retina.
The vitreous humor is a gel-like substance that fills the space between the lens and the retina in the eye. It helps maintain the shape of the eye and support the retina by transmitting light to the retina for visual perception.
rods and cones
optic nerve is the one that transmits visual information from the retina to the brain.
It is well known as the pupil - a dark circular opening in the center of the iris of the eye, varying in size to regulate the amount of light reaching the retina, so that you can have a visual at the things you look at.
Visual cortex of occipital lobe