Ocular Physiology

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Across
  1. 2. area where is no light sensitive cells
  2. 3. used to perceive color
  3. 5. muscle that controls light entrance; various color
  4. 9. keeps the cornea's shape
  5. 12. term used for the ability to see 3 colors
  6. 13. dark circle that lets light in
  7. 14. gives the eyeball its shape
  8. 15. starts the visual process; tough covering; allows light to bend
  9. 16. term used for the ability to see 2 colors
  10. 19. inner eyelid in some species
  11. 20. keeps the eyes moist
Down
  1. 1. pink inner protective membrane of the eye
  2. 4. a bony cavity that protects the eye
  3. 6. carries info from the eye to the brain
  4. 7. allows cats night vision capabilities
  5. 8. flexible structure that can change shape
  6. 10. night vision;low light
  7. 11. the eye's white outer covering
  8. 17. guards against dust
  9. 18. contains layers of light sensitive cell