ABO PRE-TEST EXAM QUESTIONS WITH 100%
ACCURATE SOLUTIONS
1) If a patient is wearing a +12.00 diopter sphere and the adjustment is made to move
them closer to the eyes, what effect will that have on the effective power of the
lens?
A) Decrease the plus power
B) Increase the plus power
C) Cause base in prism
D) Cause base out prism -- Correct Answer ✔✔ Decrease the plus
power
2) Which RX of the following is the same as the following RX: -3.00 +2.50 x25
A) -3.00 +2.50 x105
B) -0.50 -2.50 x115
C) +0.50 +2.50 x115
D) +3.00 -0.50 x105 -- Correct Answer ✔✔ -0.50 -2.50 x115
,3) Given a material of unknown index and the speed of light within that material as
101,000 miles per second. Compute the index of refraction for that material.
A) 1.53
B) 1.62
C) 1.75
D) 1.84 -- Correct Answer ✔✔ 1.62
4) Which of the following RX lenses should never be put in a Z87 Frame?
A) 2mm dress lenses
B) 3mm non-trademarked lenses
C) 3mm tinted/non-trademarked as special purpose lenses
D) None of the Above -- Correct Answer ✔✔ None of the Above
5) If your lensometer reads +0.25 with no lens, a lens that measures -3.00 -1.50 x180 is
actually
A) -2.75 -1.25 x180
B) -2.75 -1.50 x180
C) -3.25 -1.75 x180
D) -3.25 -1.50 x180 -- Correct Answer ✔✔ -3.25 -1.50 x180
6) When verifying an add on a 1 piece bifocal with a lens clock, a +2.00 add would clock
____ in the distance and ______ in the segment.
A) +6.12/+8.12
B) +4.50/-7.25
C) +4.37/+7.12
D) +3.75/+1.00 -- Correct Answer ✔✔ +6.12/+8.12
7) What should you do when a consumer comes in and complains of severe eye pain?
A) Take a complete history
B) Check the eye with an ophthalmoscope
C) Refer them back to the eye doctor
, D) Check the pupillary response to light. -- Correct Answer ✔✔ Refer
them back to the eye doctor
8) Which wavelengths of light have been indicated as contributors to the onset of
cataracts?
A) 700-800 nm
B) 400-550 nm
C) 300-380 nm
D) 100 - and below nm -- Correct Answer ✔✔ 300-380mm
9) The refractive astigmatism indicated by the RX +1.50 -1.00 x 180 is
A) Compound Hyperopic
B) Mixed
C) Simple Myopic
D) Antimetropic -- Correct Answer ✔✔ Compound Hyperopic
10) The refractive astigmatism indicated by the RX +1.50 -1.75 x 35 is
A) Compound Hyperopic
B) Mixed
C) Simple Myopic
D) Antimetropic -- Correct Answer ✔✔ Mixed
11) The patient's RX is -1.75 -.50 x 120 with a +2.00 add standard trifocal. What is the
power through the intermediate.
A) -1.25 -.50 x 120
B) -.75 -.50 x 120
C) -.75 -.50 x 30
D) -1.00 -.50 x 150 -- Correct Answer ✔✔ -.75 -.50 x 120
12) The Geneva lens measure is designed to measure
A) Path length
ACCURATE SOLUTIONS
1) If a patient is wearing a +12.00 diopter sphere and the adjustment is made to move
them closer to the eyes, what effect will that have on the effective power of the
lens?
A) Decrease the plus power
B) Increase the plus power
C) Cause base in prism
D) Cause base out prism -- Correct Answer ✔✔ Decrease the plus
power
2) Which RX of the following is the same as the following RX: -3.00 +2.50 x25
A) -3.00 +2.50 x105
B) -0.50 -2.50 x115
C) +0.50 +2.50 x115
D) +3.00 -0.50 x105 -- Correct Answer ✔✔ -0.50 -2.50 x115
,3) Given a material of unknown index and the speed of light within that material as
101,000 miles per second. Compute the index of refraction for that material.
A) 1.53
B) 1.62
C) 1.75
D) 1.84 -- Correct Answer ✔✔ 1.62
4) Which of the following RX lenses should never be put in a Z87 Frame?
A) 2mm dress lenses
B) 3mm non-trademarked lenses
C) 3mm tinted/non-trademarked as special purpose lenses
D) None of the Above -- Correct Answer ✔✔ None of the Above
5) If your lensometer reads +0.25 with no lens, a lens that measures -3.00 -1.50 x180 is
actually
A) -2.75 -1.25 x180
B) -2.75 -1.50 x180
C) -3.25 -1.75 x180
D) -3.25 -1.50 x180 -- Correct Answer ✔✔ -3.25 -1.50 x180
6) When verifying an add on a 1 piece bifocal with a lens clock, a +2.00 add would clock
____ in the distance and ______ in the segment.
A) +6.12/+8.12
B) +4.50/-7.25
C) +4.37/+7.12
D) +3.75/+1.00 -- Correct Answer ✔✔ +6.12/+8.12
7) What should you do when a consumer comes in and complains of severe eye pain?
A) Take a complete history
B) Check the eye with an ophthalmoscope
C) Refer them back to the eye doctor
, D) Check the pupillary response to light. -- Correct Answer ✔✔ Refer
them back to the eye doctor
8) Which wavelengths of light have been indicated as contributors to the onset of
cataracts?
A) 700-800 nm
B) 400-550 nm
C) 300-380 nm
D) 100 - and below nm -- Correct Answer ✔✔ 300-380mm
9) The refractive astigmatism indicated by the RX +1.50 -1.00 x 180 is
A) Compound Hyperopic
B) Mixed
C) Simple Myopic
D) Antimetropic -- Correct Answer ✔✔ Compound Hyperopic
10) The refractive astigmatism indicated by the RX +1.50 -1.75 x 35 is
A) Compound Hyperopic
B) Mixed
C) Simple Myopic
D) Antimetropic -- Correct Answer ✔✔ Mixed
11) The patient's RX is -1.75 -.50 x 120 with a +2.00 add standard trifocal. What is the
power through the intermediate.
A) -1.25 -.50 x 120
B) -.75 -.50 x 120
C) -.75 -.50 x 30
D) -1.00 -.50 x 150 -- Correct Answer ✔✔ -.75 -.50 x 120
12) The Geneva lens measure is designed to measure
A) Path length
