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Your eyes are very delicate. You
can think of them as the color television cameras for your brain. Like
a camera, your eyes include:
- A lens that focuses
light;
- An iris that controls
the amount of light that enters the eye;
- Receptors that
"pick up" the image of what you see, and;
- An optic nerve
that serves as a "cable" to transmit information from the receptors
in your eye to your brain.
Unlike a television camera that is made of
plastic and metal, your eye is made of soft tissues and blood vessels.
Damage your eyes, and you have big trouble. Trouble that is often permanent. |
