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How The Human Eye and Brain Work Together To See Color
Light next enters the transparent lens. The lens is right behind the pupil and focuses light onto the retina. Like the auto focus on a camera, the lens changes its shape to make sure that the ‘picture’ on the retina is as clear as possible The lens's concaved- shape is flexible and controlled by muscles attached to the eye's interior sclera. The lens automatically adjusts its width depending on whether the light reflecting off the object you are looking at is close to you or if the object you are looking at is far away.
The interior chamber of the eyeball is filled with a transparent jelly-like tissue called the vitreous humor. It is in the vitreous humor where light waves passing through the lens are refracted (bent) and converge at a central location called the focal point. Once light passes the focal point, the image projected on the retina is inverted (upside down). By inverting the image the eyes allow us to see images
that are way bigger than the size of the pupil. So why doesn’t the world look upside down to us? Also, most people have two eyes, and therefore two retinas. Why, then, don't you also see two distinct images? For the same reason that you don't see everything upside- down. God created one of the most complexed organs of our bodies, our brain, to make everything appear right-side up.
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