Cornea
It is a bundle of nerve fibers that carry electrical impulses to the brain from the retina.
The retina converts light into nerve impulses, which are NOT electrical in nature.
The retina is a very thin layer of cells lining the back of the eye behind the viscous humor. This is where the cells that convert light to neural impulses are; without the retina, you would be blind.
It is called the RETINA
The retina forms the inner-wall layer at the back of the human eye ball that consists of many light-sensitive cells that absorb light rays and convert them into electrical nerve impulses that signals the brain about the image(s) that the eyes detected.
The energy changes into an electrical sign called impulses at the back of your eyeball called the retina.
retina
Cornea: Transmits & focuses light into the eye. Lens: Focuses light rays onto the retina. Retina: Creates impulses to the brain. Thepupil is a hole located in the center of the iris of the eye that allows light to enter the retina.
I am pretty sure it is the retina.The retina not only is used for focusing but also The sides of the ''retina'' are responsible for our peripheral vision. The center area, called the macula, is ''used'' for our fine central vision and color vision. Are you referring to optical nerve impulses?
Retina
Light emitted or reflected by objects in the surroundings causes reactions in the rod and cone cells in the retina. These reactions send electrical impulses to the brain, which interprets them as an image.
"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