The Human Eye
How does it work?
A brief breakdown
Light enters the human eye through the cornea, which refracts the light that enters in so it focuses to a point at the retina. Because the lens of the eye is convex, the image that is focused on the retina is upside down. These light signals are received by rods and cones, converting them into electrical impulses along the bipolar cells and ganglion cells. It then gets passed from the ganglion cell into the optic nerve, and then to the brain, where the information is corrected so that the image is the right way up.
And that's how you see what you see right now!
Looking into the human eye
Representation of the retina
