Across
- 5. correction for two distances
- 7. _________ distance (pd)
- 8. inside of a bowl
- 10. cylinder corrects for this
- 12. mirror
- 14. light is not deviated
- 18. smallest amount of light
Down
- 1. loss of ability to see things at near
- 2. light changes direction
- 3. bubble
- 4. 1.586
- 6. contains no cylinder power
- 9. away
- 11. farsighted
- 13. nearsighted
- 15. coming together
- 16. corrects for astigmatims
- 17. correction for three distances
- 19. 1.53