Book Definition: The thin, light-sensitive layer at the back of the eyeball. The retina contains millions of photoreceptors, and other nerve cells.

In Your Own Words

  • Layer in the eye that reflects light and transfers waves into color and images.

  • The retina is the "film" in the back of the "camera," except the cam is your eye and the film is constantly moving.


  • response to light.
  • forms the origins of the optic nerve.
  • different layers are marked for clarity.

Additional Resources