Your Guide to How the Eye Sees
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Signals sent from the photoreceptors travel along nerve fibers to a nerve bundle which exits the back of the eye The bundle is called the optic nerve. The optic nerve sends the signals to the visual center in the back of the brain.
Now light, reflected from an object, has entered the eye, been focused, converted into electro-chemical signals, delivered to the brain and interpreted or "seen" as an image.