Fun fact: we (and other vertebrates) have an "inverted" retina design, where light must travel the entire length of the eye to hit the photoreceptors at the outer edge of the retina. Then, the signal gets transmitted back "inwards" until it is passed to the retinal ganglion cells and along the optic nerve.
Fun fact: we (and other vertebrates) have an "inverted" retina design, where light must travel the entire length of the eye to hit the photoreceptors at the outer edge of the retina. Then, the signal gets transmitted back "inwards" until it is passed to the retinal ganglion cells and along the optic nerve.