Taking the Measure of Digital Centration Systems - Part 1: What Does "Better" Mean?
1. What percentage of practices have some kind of digital measurement system?
2. To take both standard and position-of-wear measurements, most systems use:
3. The oldest preserved measuring stick dates back roughly:
4. One “intangible” benefit of a digital measurement system is:
5. Most digital measurement devices include features that help:
6. Measurement errors when fitting eyeglasses are:
7. Why would monocular PD measurements be different when the patient is wearing glasses?
8. Which measurement approach generally shows the most variation among different operators?
9. Hand-taken measurements are less consistent than those of a digital device because:
10. Who said “to measure is to know?”
11. Some systems use a clip placed around the lens to:
12. Some prefer to determine PD based on corneal reflection rather than pupil because:
13. Which one of these is not a position of wear measurement?
14. Lenses that are not compensated for position of wear measurements:
15. In case the patient's head is slightly turned during measurement, many digital systems:
16. Which of these is not a reason why accurate measurements are more important than ever today?
17. After the photos needed for measurement have been taken, some devices require you to:
18. In one study, a 2-mm binocular measurement was shown to cause up to how much reduction in the patient's field of view?
19. Why weren't position of wear measurements used in the past?
20. Torticollis is:
21. In questions 21-25 please rate the effectiveness of how well each course met the stated learning objectives: Met the stated learning objectives?
22. Avoided commercial bias/influence?
23. How would you rate the overall quality of the material presented?
24. How were you directed to this course?
25. Please describe the office in which you work.