Major Funding The Laura Moore Cunningham Foundation


Eyes: Seeing is Believing

Light: Let There Be Light

Eyes: Eye Care 101

Eyes: Where are Your Eyes?

Eyes: Animal Eyes

Eyes: Colorful Eyes

  • Seeing is Believing
  • |
  • Let There Be Light
  • |
  • Eye Care 101
  • |
  • Where are Your Eyes?
  • |
  • Animal Eyes
  • |
  • Colorful Eyes
Eyes [īz]
Globular organs in the head through which people and animals see.

Our eyes are our windows to the world. The eye gives us the sense of sight, the most precious of our five senses. We rely on this sense more than any other. The eyeball is a sphere, about 2.5 cm (1 inch) in diameter, set in a protective cone-shaped cavity in the skull called the orbit or socket. Our eyes change light rays into electrical signals that are sent to a special part of the brain, which interprets these electrical signals as visual images.

Find out more about this topic by clicking on the buttons on this page. You can watch our video shorts and other programs by clicking on the links above or by going to Video. Facts will tell you more about the topic. Links will expand your learning beyond our site. Glossary gives you a list of specialized words. Books offer reading suggestions. Games give you a chance to play. Teachers provides materials for educators. Contact us by clicking on the link in the masthead to email us questions or comments. Click for the current season's schedule of programs, and be sure to check out my blog and our 360° videos.

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