How does the eye focus light?!
Question:
How does the eye focus light?
the question ^.
Answers:
LIGHT AND SIGHT
You see things when light is reflected from them into your eyes. When there is no light, you cannot see. Your eyes enable you to see things in color and in focus. They also help you to judge distances. Your eyes receive images, and these are sent as impulses along nerves to your brain, which interprets them.
EYEBALLS
Your eyes are designed to receive reflected light, focus it, and send messages to your brain. Covering the front of your eye is a transparent protective coating called the cornea. Behind this is a circle of muscle called the iris. The iris has a hole in its center known as the pupil. Light enters the eye cornea through the pupil and then passes through the lens. The lens is convex and focuses the light on a sort of screen at the back of the eye called the retina. You will see in the diagram that the image is upside down. Details of the image are sent along the optic nerve to the brain where the image is turned around.