20 20 April 2012 : Page 111
SELF-ASSESSMENT EXAMINA TION 1. All of the following help make wrap sunwear best for an athlete except: a. Better wind protection b. Unobstructed field of view c. Takes any standard lens d. Projects style and attitude 2. The problem with prescription wrap sunwear has been: a. Every Rx requires a steep base curve b. Lenses are wrapped at extreme angles c. Standard edging creates loose lenses d. All of the above 3. Authentic wrap sunwear programs can better address: a. Actual frame measurements b. Frame tilt and wrap angle c. Edging precision d. All of the above 4. All of the following are part of the wrap Rx checklist except: a. The flattest lens base possible b. Close fit c. Monocular PD d. Reconstructed central Rx 5. Having a cyclist bring their bike for lens fitting: a. Ensures the best lens color b. Determines lens base curve c. Ensures the best fitting height for either PALs or SV d. Determines the correct PD 6. A 2 base, -4.00D lens, glazed in an 8 base frame: a. Distorts the frame front b. Widens temple fit c. No longer looks like the original with planos d. All of the above 7. Using lenses at wrap angles more than stan-dard flat frames typically induces prism base out: a. In planos b. In prescription lenses c. In both plano and Rx d. None of the above 8. Excess, unwanted horizontal prism at the distance PD: a. Causes double vision b. Makes glasses unwearable c. Make patients return unhappy d. All of the above 9. The compensating prism that is added to lenses by the laboratory: a. Is equal but opposite to the prism induced by the wrap angle b. Is twice but opposite to the prism induced by the wrap angle c. Is equal but in the same direction as prism induced by the wrap angle d. Is half but in the same direction as prism induced by the wrap angle 10. When reconstructing the Rx: a. The lab is changing the Rx b. The doctor must be called to approve the result c. There is no change to the Rx d. Both A and B are correct 11. The addition of a compensating Base In prism: a. Ensures binocularity b. Reduces the PD by half c. Makes the PD verified on the lenses correct d. Both A and C are correct 12. Which of the following is optimized in an Oakley True Digital Rx lens? a. Central Rx b. Peripheral design c. Edge thickness top and bottom d. All of the above 13. Oakley Dual Peripheral Technology is: a. Peripheral design based on Rx, wrap angle and base curve b. Considers mid and far periphery differently c. Provides a clearer periphery over traditional lenses d. All of the above 14. Reduced prism imbalance, off center: a. Requires vertical prism b. Ensures wider, clear fields of view c. Changes the monocular PD d. All of the above 15. Clearer vision in the far periphery: a. Aids in motion detection b. Is the result of optimizing peripheral design c. Is different by Rx, frame and fit d. All of the above 16. The benefit of an optimized, free-form wrap sunglass lens over an ordinary compen-sated toric lens is: a. A correct PD b. A clearer lens periphery c. Lenses edged easier d. All of the above 17. Edging for wrap frames: a. Requires steeper bevels b. Must ensure that any lens thickness misses nose pad or temporal edge c. May require specialty step bevels d. All of the above 18. All of the following are correct about a rear positioned bevel except: a. Reproduces the look of the original plano sunglass lens b. Changes the wrap angle of the lens c. The lens protrudes out the front of the frame d. The Rx and frame looks different than the original plano and frame 19. Verify the lens power: a. Using the reconstructed Rx supplied by the laboratory b. At the position of prism identified c. Using the doctor’s prescription d. Both A and B are correct 20. Wrap prescription sunwear: a. Can be made in a much wider range of prescriptions b. Should be a solution for all athletes c. If it meets the demands of athletes, it can work for all patients d. All of the above April 2012 20/20 • 111
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