Science crossword puzzle

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Across
  1. 1. rays that have the most energy
  2. 3. are the same as glasses
  3. 5. cause far-sightedness
  4. 6. converts light to electrical signals
  5. 7. causes loss of ganglion cells
  6. 9. has the longest wavelength out of the visible colors
  7. 11. flows through everything
  8. 13. causes blurred vision
  9. 14. lenses that are large on the outside thin in the middle
  10. 16. colored part of your eye
  11. 19. has the highest frequency out of all the visible light colors
  12. 20. white skin that covers the hole eye except the cornea
Down
  1. 2. have the second lowest energy
  2. 4. waves that ca give u skin cancer
  3. 8. caused by age
  4. 10. cause short-sidedness
  5. 12. waves that have the longest wavelength
  6. 15. functions as a fixed lense
  7. 17. lenses that are thin on the outside and thick in the middle
  8. 18. where light enters your eye