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
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
6. A lens has a front surface power of +2.00D and a back surface power of -8.25D.<br />
The corrective power is<br />
a. -8.25D<br />
b. -5.75D<br />
c. +2.00D<br />
d. -6.25D<br />
7. What is the best base curve for a -3.75D lens?<br />
a. +4.00<br />
b. +2.00<br />
c. -4.00<br />
d. -2.00<br />
8. Using the prescription +2.00 -1.50 X 45, what is the power of the lens at the 90th<br />
meridian?<br />
a. +0.50<br />
b. +2.00<br />
c. +1.25<br />
d. -0.50<br />
9. How much cylinder power is in effect at the specified axis?<br />
a. 0%<br />
b. 25%<br />
c. 50%<br />
d. 100%<br />
10. How much cylinder power is in effect 90 degrees away from the specified axis?<br />
a. 0%<br />
b. 50%<br />
c. 25%<br />
d. 100%<br />
11. A plus lens<br />
a. diverges light<br />
b. converges light<br />
c. is two prisms placed apex to apex<br />
d. is concave<br />
This document is licensed under the Creative Commons Attribution 3.0 License. 8/11/2009<br />
12
Change language