CE Test Questions
Adjustable Lenses, A New Lens Category

Exam Questions
1. Two lenses placed back to back composed of a lens form where each is both convex and concave is called an ________________ lens.

    A. Cusco
    B. Alvarez
    C. Galilean
    D. HD
2. All of the following were the findings of the adjustable eyewear children's study, except

    A. Children are the most difficult refractive subjects due to such an active accommodative system
    B. Children saw equally well with their adjustable and their current prescription eyewear and exam
    C. Self adjustment/self refraction achieved excellent acuity for almost all children
    D. Children can effectively use adjustable glasses
3. The first adjustable power lens using water was invented by ______________ in __________.

    A. Dr. Alvarez, 1879
    B. Dr. Cusco, 1897
    C. Dr. Alvarez, 1897
    D. Dr. Cusco, 1879
4. The GfK Roper study reported that as much as __________ of PAL wearers cannot adapt to the eye movement or other conditions of progressive addition lenses.

    A. Less than 1 percent
    B. About 3 percent
    C. About 6 percent
    D. More than 10 percent
5. The oldest adjustable lens system is the

    A. Telescope
    B. Microscope
    C. Binoculars
    D. Magnifier
6. In the Pixel Optics adjustable power 'segment', an electrical charge applied to the liquid crystal caused a change in the

    A. Abbe value
    B. Specific gravity
    C. Refractive index
    D. Density
7. Electro-wetting lenses are most commonly used in

    A. Telescopes
    B. Microscopes
    C. Cell phones
    D. Magnifiers
8. Of the 54 million PAL wearers, about ___________ considered switching to some other kind of eyewear according to the GFK Roper study.

    A. 11%
    B. 27%
    C. 39%
    D. 6%
9. Understanding that __________ percent of the Rx population is between -6 and +3 sphere power and __________ percent have cylinder of 0.50D or less helps to understand the opportunity for variable focus lenses.

    A. 90, 85
    B. 85, 75
    C. 85, 90
    D. 90, 75
10. To see clearly at 40cm (PD 63mm), a wearer must converge ___ prism diopters ________ to satisfy Percival's Criteria.

    A. 5, Base Out
    B. 5, Base In
    C. 15, Base Out
    D. 15, Base In
11. There are at least ____________ children in the developing world that would benefit from vision correction?

    A. 50 million
    B. 130 million
    C. 180 million
    D. 300 million
12. To maintain comfortable vision prismatically, the lens system must deliver vergence demand ___________ (Percival Criteria).

    A. In the lower, mostly base in range
    B. In the middle range
    C. In the higher, mostly base out range
    D. With no prism whatsoever
13. In the patented non-round lens mount ring, pressing the 3 points of the farthest temporal edge, all of the following are true except

    A. Moves the optical center to the geometric center
    B. Maintains the optical center position
    C. Produces a spherical only change in power
    D. Can be made for virtually any shape frame
14. Progressive lenses change eye movement behavior. When compared to SV lenses that change is mostly

    A. Up and down
    B. Side to side
    C. Both side to side and up and down
    D. There is no change
15. The difference between a traditional progressive power lens and one that has a variable power with flexible ring and a conformable membrane

    A. There is no difference in viewing zone size
    B. Creates a full field SV lens for far to near vision
    C. Is available all the same lens materials
    D. Provides a wider mid-range, same size near
16. The reason that fluid filled, adjustable power lenses have been round is because

    A. Surface curvature fits a square mount just as well a round ring mount
    B. They are the most difficult to manufacture
    C. Optical aberrations cannot be controlled
    D. Surface curvature is always in contact with a round ring mount
17. To make a non-round lens mount adjust to a flexible membrane, make the

    A. Lens mount adjust to the membrane
    B. Membrane adjust to a fixed lens mount and ignore the aberrations
    C. Lens mounts a non-round lenticular mount instead
    D. Metal used hard and inflexible
18. The pivot points described

    A. Vary in height depending on the power needed
    B. Are the farthest temporal attachments
    C. Are the intersection of frame and preferred optical circle positioning
    D. Allow for variable astigmatic correction
19. A future opportunity for variable power lenses and eye tracking could be the ability to

    A. Make Rx eye tracking lenses
    B. Alter the power where needed for specific eyewear applications
    C. Deliver photochromic lenses
    D. Alter lens thinness on demand
20. In the survey of children, what percentage of children achieved good acuity with their current glasses?

    A. About 10 percent
    B. Just more than half
    C. About 80 percent
    D. About a third

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: