OpenOptix ABO Study Guide Review Questions - Laramy-K Optical
OpenOptix ABO Study Guide Review Questions - Laramy-K Optical
OpenOptix ABO Study Guide Review Questions - Laramy-K Optical
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19. Plus lenses ________ and minus lenses ________.<br />
a. magnify, minify<br />
b. Minify, magnify<br />
c. Neutralize, verify<br />
d. Myopia, hyperopia<br />
20. The spherical equivalent of the lens +1.00 +2.50 x 90 is:<br />
a. +1.50D<br />
b. +2.25D<br />
c. +2.50D<br />
d. +3.50D<br />
21. If the prescription is O.D. +1.00 +2.50 x 45, what would be the total power at axis<br />
90?<br />
a. +1.00D<br />
b. +2.00D<br />
c. +2.25D<br />
d. +2.SOD<br />
22. Which of the following lenses has no power in the 90° meridian?<br />
a. +2.00 -2.00 x 90<br />
b. +2.00 +2.00 x 180<br />
c. +1.00-2.00 x 45<br />
d. +1.00+1.00x135<br />
23. Given an Rx with all specifications equal but ground in material of different<br />
indices, which set of lenses will be the thinnest?<br />
a. Crown glass<br />
b. Polycarbonate<br />
c. CR-39<br />
d. Photo-Gray Extra<br />
24. A lens having one concave and one convex surface is called a __________ lens.<br />
a. Biconvex<br />
b. Toric<br />
c. Biconcave<br />
d. Meniscus<br />
This document is licensed under the Creative Commons Attribution 3.0 License. 8/11/2009<br />
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