ABO EXAM PRE-TEST QUESTIONS WITH COMPLETE SOLUTIONS

ABO EXAM PRE-TEST QUESTIONS WITH
COMPLETE SOLUTIONS

When |ordering |a |six |inch |temple, |its |corresponding |millimeter |value |is |which |of |the |following?

A. |135 |mm

B. |140 |mm

C. |145 |mm

D. |150 |mm |- |CORRECT |ANSWER✔✔-150 |mm



What |is |the |focal |length |of |a |2 |diopter |lens?

A. |500 |cm

B. |39.37 |inches

C. |500 |mm

D. |2 |meters |- |CORRECT |ANSWER✔✔-500 |mm



Wavelengths |are |measured |in |

A. |Meters

B. |Decimeters

C. |Centimeters

D. |Nanometers |- |CORRECT |ANSWER✔✔-Nanometers



Which |of |the |following |has |the |shortest |and |therefore |most |harmful |wavelength?

A. |UVC

B. |UVB

C. |UVA

,D. |INFRARED |- |CORRECT |ANSWER✔✔-UVC



When |two |light |wavesw |are |in |"in |phase" |they |will

A. |Destroy |on |another

B. |Reduce |each |front |by |half

C. |Compound |one |another

D. |None |of |the |above |- |CORRECT |ANSWER✔✔-Compound |one |another



The |cylinder |axis |tolerance |for |a |1.00D |cylinder |according |to |ANSI |Z80.1 |is

A. |Plus |or |minus |7 |degrees

B. |Plus |or |minus |5 |degrees

C. |Plus |or |minus |3 |degrees

D. |Plus |or |minus |2 |degrees |- |CORRECT |ANSWER✔✔-Plus |or |minus |3 |degrees



A |plus |lens |decentered |"out" |will |result |in |a |finished |lens |which |is |

A. |Balanced

B. |Thicker |temporally

C. |Thicker |nasally

D. |Uniform |in |edge |thickness |- |CORRECT |ANSWER✔✔-Thicker |temporally



A |minus |lens |decentered |"out" |will |result |in |a |finished |lens |which |is

A. |Balanced

B. |Thicker |temporally

C. |Thicker |nasally

D. |Uniform |in |edge |thickness |- |CORRECT |ANSWER✔✔-Thicker |nasally

, An |uncoated |normal |plastic |lens |will |reflect |approximately |______% |of |light.

A. |2%

B. |4%

C. |8%

D. |12% |- |CORRECT |ANSWER✔✔-8%



A |lens |having |a |minus |curve |on |both |front |and |back |is |called

A. |Toric

B. |Meniscus

C. |Biconvex

D. |Biconcave |- |CORRECT |ANSWER✔✔-Biconcave



Give |the |RX |+1.00 |+1.00 |x |45, |how |much |of |the |+1.00 |cylinder |is |in |the |effect |at |axis |90?

A. |100%

B. |70%

C. |50%

D. |0 |- |CORRECT |ANSWER✔✔-50%



80 |degrees |from |the |specified |axis, |a |cylinder |will |show

A. |5% |of |its |power

B. |10% |of |its |power

C. |50% |of |its |power

D. |97% |of |its |power |- |CORRECT |ANSWER✔✔-97% |if |its |power



The |type |of |patient |often |bothered |by |large |magnified |eye |look |is |a |

A. |Myope