POST TEST FOR MODULE 20:  Handling Glasses Complaints              Catalog

                                                                   

Including:
Section 1:  The Systematic Evaluation
Section 2:  Solving Specific Problems

Section 3:  An Ounce of Prevention

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Section 1

1. The optical center of the glasses lenses are marked so that:

A. pupil alignment can be checked

B. the OCD can be measured 

C. induced prism can be evaluated

D. all of the above                       

2. If old and new prescriptions are close in power, the old and new base curves should be:

A. exactly the same

B. within one diopter

C. within two diopters

D. within three diopters    

3. We can assume lenses are are within tolerance if, for a 2 D lens, the OCD is within ___ mm of the PD.

A. 3

B. 4

C. 5

D. 6          

Section 2

4. Which is not a common cause of blurry distance vision with new glasses?

A. glasses not made to Rx

B. refraction error

C. change in base curve

D. vertex distance change     

5. Which is not characteristic of progressive lenses?

A. narrow viewing corridor

B. distortion in lens periphery

C. add power is strongest at bottom of lens

D. all are characteristics                  

6. What is maximum add power a patient with 20/20 vision should need to see small print at 16 inches?

A. +1.50

B. +2.00

C. +2.50

D. +3.00         

7. Increasing the plus distance power and bifocal add power at the same time may elicit a complaint of:

A. not enough magnification

B. not able to see small print

C. having to hold reading too close

D. having to hold reading too far away      

8. Which is the least desirable solution for computer screen viewing?

A. single vision glasses with intermediate correction

B. bifocals with intermediate/near correction

C. bifocals with distance/near correction

D. trifocals                                            

9. The older patient who closes one eye to read at near may have:

A. too little add power

B. a muscle balance problem at near

C. bifocal segs that are too low

D. bifocal segs that are too high                

10. If the eyes don't focus at the same distance at near:

A. the refraction should be balanced

B. the add should be made stronger for the eye that focuses closest

C. the add should be made weaker for the eye that focuses closest

D. the eye that focuses closest should be patched                 

11. Which is not a common cause of distortion and slanting lines with a glasses Rx?

A. base curve change

B. major Rx change

C. change in lens thickness

D. change in bifocal power       

12. When reading glasses, a prism correction can be missed if the ____ is not checked on each lens.

A. base curve

B. optical center

C. add power

D. cylinder axis       

13. Double vision only when looking through a bifocal is usually caused by:

A. anisometropia

B. progressive lenses

C. cylinder powers over 3 D

D. small bifocal segs        

14. A cyclo refraction is often helpful with:

A. children under age 18

B. a hyperope not seeing 20/20 with a manifest refraction

C. the patient with very small pupils

D. all of the above                   

15. If you have doubts about the amount of cylinder power a patient needs, _____ is helpful.

A. a cyclo refraction

B. keratometry

C. a pinhole

D. waiting a week