ABO VIEW AHEAD TEST Questions with Correct Answers (Grade
A+)
Question 1: What is the focal length of a 2 diopter lens?
A. 500 cm
B. 39.37 inches
C. 500 mm
D. 2 meters
Answer: 500 mm.
Question 2: Wavelengths are measured in
A. Meters
B. Decimeters
C. Centimeters
D. Nanometers
Answer: Nanometers.
Question 3: Which of the following has the shortest and therefore most harmful wavelength?
A. UVC
B. UVB
C. UVA
D. INFRARED
Answer: UVC.
Question 4: 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
Answer: Compound one another.
Question 5: 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
Answer: Plus or minus 3 degrees.
Page 1
,Question 6: 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
Answer: Thicker temporally.
Question 7: 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
Answer: Thicker nasally.
Question 8: An uncoated normal plastic lens will reflect approximately ______% of light.
A. 2%
B. 4%
C. 8%
D. 12%
Answer: 8%.
Question 9: A lens having a minus curve on both front and back is called
A. Toric
B. Meniscus
C. Biconvex
D. Biconcave
Answer: Biconcave.
Question 10: 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
Answer: 50%.
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, Question 11: 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
Answer: 97% if its power.
Question 12: The type of patient often bothered by large magnified eye look is a
A. Myope
B. Persbyope
C. Hyperope
D. Emmetrope
Answer: Hyperope.
Question 13: A Box O graph is used to measure lenses for
A. Axis
B. Power
C. Thickness
D. Size
Answer: Size.
Question 14: A presbyopic electrician that works on overhead wiring would benefit most from
A. Executive bifocal
B. Near only readers
C. Double D
D. Round Segment
Answer: Double D.
Question 15: A presbyopic golfer, when addressing the ball, is troubled by the placement of this normal
bifocal. Which of the following would pose the best solution as a recreational golf glasses?
A. Executive bifocal fit 1mm lower than standard
B. Double D
C. Quadrifocal
D. Round segment rotated to the temporal side of the lens
Answer: Round segment rotated to the temporal side of the lens.
Page 3
A+)
Question 1: What is the focal length of a 2 diopter lens?
A. 500 cm
B. 39.37 inches
C. 500 mm
D. 2 meters
Answer: 500 mm.
Question 2: Wavelengths are measured in
A. Meters
B. Decimeters
C. Centimeters
D. Nanometers
Answer: Nanometers.
Question 3: Which of the following has the shortest and therefore most harmful wavelength?
A. UVC
B. UVB
C. UVA
D. INFRARED
Answer: UVC.
Question 4: 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
Answer: Compound one another.
Question 5: 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
Answer: Plus or minus 3 degrees.
Page 1
,Question 6: 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
Answer: Thicker temporally.
Question 7: 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
Answer: Thicker nasally.
Question 8: An uncoated normal plastic lens will reflect approximately ______% of light.
A. 2%
B. 4%
C. 8%
D. 12%
Answer: 8%.
Question 9: A lens having a minus curve on both front and back is called
A. Toric
B. Meniscus
C. Biconvex
D. Biconcave
Answer: Biconcave.
Question 10: 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
Answer: 50%.
Page 2
, Question 11: 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
Answer: 97% if its power.
Question 12: The type of patient often bothered by large magnified eye look is a
A. Myope
B. Persbyope
C. Hyperope
D. Emmetrope
Answer: Hyperope.
Question 13: A Box O graph is used to measure lenses for
A. Axis
B. Power
C. Thickness
D. Size
Answer: Size.
Question 14: A presbyopic electrician that works on overhead wiring would benefit most from
A. Executive bifocal
B. Near only readers
C. Double D
D. Round Segment
Answer: Double D.
Question 15: A presbyopic golfer, when addressing the ball, is troubled by the placement of this normal
bifocal. Which of the following would pose the best solution as a recreational golf glasses?
A. Executive bifocal fit 1mm lower than standard
B. Double D
C. Quadrifocal
D. Round segment rotated to the temporal side of the lens
Answer: Round segment rotated to the temporal side of the lens.
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