Disdude 22
The human eye is a camera with the same features some even the same name for example lens. Cornea and pupil both guide in pinpointing focused details while iris guards amount of light permitted
Big difference being the retina with over 125 million photoreceptors separated by 23 red, blue and green receptors allows our brain extreme details. None of these databytes mean anything just being codes in shapes check out disdude 21 for that info. Important from this is these geometric shapes correlate on the retina with exact region of visual cortex to be interpreted.
Ganglion photoreceptor cells gather in middle of retina called fovea where the axons or tail-ends form into optic nerve. The brain has interpreted nothing at this point until optic nerve transmitting the light impulses turns them into nerve impulses for processing in visual cortex of occipital lobe. In Disdude 23 is explanation of another unique occurrence in optic nerve before reaching brain.