Optical Calculations Crossword Puzzle

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Across
  1. 3. If the FPD s smaller than the PPD we decenter the lens ____
  2. 7. Refers to the conversion of prescription from plus cylinder to minus cylinder form
Down
  1. 1. Greater the amount of decentration in a minus lens, ____ the lens edge
  2. 2. ____ inset is how far the segment has to be decentered in the frame, so it's properly placed for the wearer
  3. 4. Refers to the amount and direction in which the optical center of the lens needs to be moved to be in front of the patient's eye when in the frame
  4. 5. ____ decentration helps us determine where the segment will be placed compared to the datum line of a frame
  5. 6. The smallest lens blank that can be used to cut the lens shape
  6. 8. ___ inset is the difference between the patient's distance and near pupillary distance