CE Test Questions
Taming the Wild Wavefront

Exam Questions
1. The combination of rays from a point on an object:

    A. Converges at a point in space
    B. Forms an ever-expanding spherical wavefront
    C. Forms an astigmatic object point
    D. Begin as parallel at the source
2. The key to excellence, differentiation and a higher average sell price is all of the following except:

    A. Addressing the eye's aberrations
    B. The subtle effects of aberrations on vision
    C. Average fitting measurements
    D. Lens design aberrations
3. The aberration that easily makes eyewear un-wearable is:

    A. Spherical aberration
    B. Astigmatism
    C. Defocus
    D. Prism
4. Which of the following is a high-order aberration?

    A. Defocus
    B. Astigmatism
    C. Spherical aberration
    D. Prism
5. In an ideal optical system, a spherical wavefront ideally:

    A. Converges light to a single point focus
    B. Produces a spread of focus
    C. Creates astigmatism, two single but different points of focus
    D. A combination of A and C
6. As ECPs, managing wavefronts is:

    A. The bulk of what we do
    B. Makes eyewear unwearable
    C. The purpose of eyewear
    D. A and C
7. Aberrated wavefronts:

    A. Converge to a single point focus
    B. Create a smeared image pattern
    C. Create actual un-aberrated wavefronts
    D. Clear image focus
8. Defocus can be defined as:

    A. Circular patch of blur on the retina
    B. Blur corrected by a sphere lens
    C. Blur corrected by a cylinder lens
    D. A and B
9. A -2.50 cylinder SV lens, using spherical base curves, does all of the following except:

    A. Produces excess off-center blur
    B. Creates a single point focus
    C. Usually produces adequate vision
    D. An elliptical clear field of view
10. Traditional progressives:

    A. Have the same peripheral blur in all Rxs
    B. Provide inadequate vision
    C. Have variable peripheral blur depending on pupil size and the Rx
    D. Are better in high cylinder Rxs
11. As the prescription deviates from a base curve's ideal power, in traditional progressives, optical performance:

    A. Improves
    B. Stays the same
    C. Deteriorates
    D. Combination of A and B
12. By calculating and predicting low order lens errors, optimized and digitally enhanced lenses:

    A. Can reduce or eliminate their effects
    B. Always make the errors worse
    C. Increase the total add power
    D. Always shorten the corridor
13. A lens whose sphere and cylinder powers are corrected using a different amount of asphericity for each power is most accurately called:

    A. Aspheric
    B. Alvarez
    C. Asymmetric
    D. Atoric
14. All of the following are true about digitally optimized progressives except:

    A. Correct for off-axis errors
    B. Use actual vertex, tilt and wrap measurements
    C. Use the average vertex, tilt and wrap fitting values
    D. Combine some/all progressive design with prescription on the same surface
15. All of the following are true about digitally customized progressives except:

    A. Correct for off-axis errors
    B. Use actual vertex, tilt and wrap measurements
    C. Use the average vertex, tilt and wrap fitting values
    D. Combine some/all progressive design with prescription on the same surface
16. High order aberrations (HOAs) create:

    A. Irregular wavefronts
    B. Regular wavefronts
    C. Prism only in cylinder lenses
    D. Uniform cylinder errors
17. Larger pupil diameter:

    A. Has no effect on vision
    B. Increases myopia
    C. Decreases HOA effects
    D. Increases any HOA effects
18. In the previous sphero-cylinder world of choices:

    A. Good optics required too many base curves
    B. So many base curves were cost prohibitive
    C. A and B
    D. Peripheral vision was excellent
19. In customized lenses, pre-adjusting the frame for measurements are:

    A. More important than ever before
    B. Less important than before
    C. Not needed
    D. Only required for prescriptions with cylinder power
20. Digitally enhanced single vision lenses:

    A. Can produce better overall lens clarity than progressives
    B. Are always slightly worse than standard lenses
    C. Are always worse than digital progressives
    D. Always magnify more

Evaluation Questions

21. In questions 21-25 please rate the effectiveness of how well each course met the stated learning objectives: Met the stated learning objectives?

    A. Excellent
    B. Very Good
    C. Good
    D. Fair
    E. Poor
22. Avoided commercial bias/influence?

    A. Excellent
    B. Very Good
    C. Good
    D. Fair
    E. Poor
23. How would you rate the overall quality of the material presented?

    A. Excellent
    B. Very Good
    C. Good
    D. Fair
    E. Poor
24. How were you directed to this course?

    A. 2020mag.com
    B. OAA Website
    C. NYSSO Website
    D. Ohio Opticians Website
    E. Other
25. Please describe the office in which you work.

    A. Independent Optician
    B. Independent Optometry
    C. Chain retail
    D. HMO/Military/Other
26. Comments on this program: