THE STRUCTURE OF THE EYE

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Across
  1. 3. protects and supports the eye
  2. 4. center of the retina that processes sharp, clear straight-ahead vision.
  3. 9. clear jelly-like substance that fills the eye from the lens to the back of the eye
  4. 11. what nerves cells allow colour vision in bright light
  5. 12. covers the sclera and cornea and keeps the eye moist
  6. 13. regulates the size of the eye
  7. 14. what nerve cells allow black and white vision in dim light
  8. 16. an area of densely packed cone cells where vision is most acute
  9. 17. what nerve transmits impulses to the brain
Down
  1. 1. the light sensing nerve cells located in the retina
  2. 2. admits light
  3. 5. absorbs stray light
  4. 6. controls the shape of the lens and holds it in place
  5. 7. contains no rod or cone cells
  6. 8. focusing begins here
  7. 10. contains receptors for vision
  8. 15. focuses the light rays