How Do Eyes See?
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The story of sight begins with light
Bouncing off an object
Entering the eye and makin' its way on through
First, it's focused, then rearranged
Into electrical signals that reach the brain and
Voila!
Sit back and enjoy the view
When light from an object meets your eye
The first layer that is greeted by is the cornea
Which protects the eyes and focuses the light
Then it passes through the pupil
All surrounded by this ring of color called the iris
It controls the pupil size
So the right amount of light goes in the eyes
And then hits the lens
Which is sorta like a window, except it bends
And exactly how it bends depends, are you lookin' near or far?
Then the light hits the retina
Which is lined with zones of special cells
Called rods and cones
And when the light hits those, it gets transformed into signals
That go climb aboard your little optic nerve
Which sends 'em toward the brain
Which does the rest (Yeah, yeah)
The story of sight begins with light
Bouncing off an object
Entering the eye and makin' it's way on through
First, it's focused and then rearranged
Into electrical signals that reach the brain and
Then, voila, sit back and enjoy the view