ABO EXAM PRE-TEST E XAM QUESTIONS WITH
CORRECT VERIFIED ANSWERS LATEST UPDATE
(2024/2025) GUARANTEED PASS
Which of the following is NOT one of the 6 muscles responsible for the
movement of the eye?
A. Superior Rectus
B. Inferior Rectus
C. Internal Rotator
D. Inferior Oblique - ANS ✅Internal Rotator
The index of refraction of spectacle crown glass is
A. 1.49
B. 1.523
C. 1.53
D. 1.59 - ANS ✅1.523
Which of the following glass lenses is a fused bifocal?
A. Executive
B. Progressive
C. Straight Top
D. Ultex - ANS ✅Straight Top
The P.D. written on the order is mistakenly noted as 70mm, when the actual
measurement should be 66mm. What unwanted prism would be found if
the distance prescription is O.U. +5.00 sphere.
A. 1 diapter base out/each eye
1
ABO EXAM PRE-TEST
,ABO
B. 1 diapter base in/each eye
C. 2 diapters out/each eye
D. 2 diapters in/each eye - ANS ✅1 diapter base out/each eye
If the RX is +2.00 -4.00 x45, it would be necessary to decenter the lens ______
to create 1 diapter of base out prism.
A. 2mm
B. 4mm
C. 6mm
D. Not possible - ANS ✅Not possible
The element in photogray lenses that is responsible for the lightening and
darkening reaction is
A. Silver nitrade
B. Ferrous oxide
C. Silver halide
D. Flint - ANS ✅Silver halide
Which of the following would provide the greatest benefit to a night driver?
A. Polaroid
B. Blue Blocker
C. Anti-reflective coating
D. Polycarbonate - ANS ✅Anti-reflective coating
A minus lens moved downward from the primary position will result in
A. Base up prismatic effect
B. Base down prismatic effect
C. Base in prismatic effect
D. Base out prismatic effect - ANS ✅Base up prismatic effect
2
ABO EXAM PRE-TEST
, ABO
A patient refracted at 15mm is prescribed a -10.00 shpere. The dispenser
finds that the actual fitting distance will be at 10mm. What should the
compensated lens power be?
A. -9.50
B. -9.75
C. -10.75
D. -10.50 - ANS ✅-9.50
A lens which reads +3.00 -2.00 x180 is decentered in 6mm too much. How
much horizontal prism is created by this error.
A. 1.8 diapters base in
B. 1.8 diapters base out
C. .6 diapters base in
D. .6 diapters base out - ANS ✅1.8 diapters base in
If a pair of lenses are gound with diapters of base in prism in each lens, the
patient will experience
A. 4 diapters of prism base in
B. 2 diapters of prism base out
C. No prism
D. None of the above - ANS ✅4 diapters of prism base in
Given a lens with a focal length of 1000mm / determine the power of the
lens.
A. One diapter
B. Five diapters
C. Ten diapters
D. One hundred diapters - ANS ✅One diapter
3
ABO EXAM PRE-TEST
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