How does vision work?

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fourth step of processing red light

cones sense the red light and send the message along the optic nerve to the brain

accommodation

focusing on objects at varying distances

third step of processing red light

lens bends (refracts) light so it focuses on the retina

first step of processing red light

light passes through cornea and aqueous humor

second step of processing red light

light passes through the pupil and hits the lens

bincocular vision

provides depth perception by combining images from both eyes

how is your eye able to focus on images from varying distances?

the ciliary body adjusts the shape of the lens so it focuses the image on the retina

fifth step of processing red light

the input is processed in the occipital lobe

refraction

when light rays bend moving between substances of different densities

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