ABO Practical Exam Question and Answer
(2026/2027) | Ultimate Revision Guide |
Updated Edition
• If the wearer complains that the glasses feel snug but still slip down the nose,
one likely cause is that:
A. The frame is too small
B. The bridge fit is tight
C. Pressure is being applied by the temple shafts anterior to the ear.
D. Pressure is being applied on the very tips of the temples. . CORRECT ANSWER:
Pressure is being applied by the temple shafts anterior to the ear
• If both nosepads press the nose or indent too much, what is probably not a
possible cause?
A. Pads too small for frame weight
B. Temple spread is not even
C. Pads too close together
D. Temple tension too great . CORRECT ANSWER: Temple spread is not even
• To eliminate a gap between the lens and a metal eyewire, the best alternative is
to:
A. Place a strip of lens liner at a point exactly opposite the gap
B. Place a strip of lens liner in the gap area
,C. Heat the lens in the frame and allow it to cool at room temperature
D. None of the above methods are satisfactory
E. All of the above methods are satisfactory . CORRECT ANSWER: Place a strip of
lens liner at a point exactly opposite the gap
• The larger the frame difference --------- the lens shape
A. Rounder
B. More squared off
C. Narrower
D. Wider . CORRECT ANSWER: Narrower
(Frame Difference=A-B)
• Which is the most favorable alternative to a 50/20 frame for measuring bifocal
height when that particular size is not available?
A. 52/18
B. 50/18
C. 48/20
D. 50/22 . CORRECT ANSWER: 48/20
(would want bridge to stay the same)
, • When the frame front is tested for four point tough, but only touches on the
two temporal sides, the frame --------
A. is skewed
B. has face form
C. is out of coplanar alignment
D. has X ing
E. none of the above . CORRECT ANSWER: Has face form
• Which of the following errors will not be detected by a four point touch test?
A. X-ing
B. Excess face form
C. Skewing
D. All of the above can be detected using a four point touch . CORRECT ANSWER:
Skewing
• It is unnecessary to use heat in adjusting a zyl frame when:
A. Bending the endpieces
B. Changing the bridge area
C. Bending the temple earpiece
D. Changing the pantoscopic angle . CORRECT ANSWER: Changing the
pantoscopic angle
(2026/2027) | Ultimate Revision Guide |
Updated Edition
• If the wearer complains that the glasses feel snug but still slip down the nose,
one likely cause is that:
A. The frame is too small
B. The bridge fit is tight
C. Pressure is being applied by the temple shafts anterior to the ear.
D. Pressure is being applied on the very tips of the temples. . CORRECT ANSWER:
Pressure is being applied by the temple shafts anterior to the ear
• If both nosepads press the nose or indent too much, what is probably not a
possible cause?
A. Pads too small for frame weight
B. Temple spread is not even
C. Pads too close together
D. Temple tension too great . CORRECT ANSWER: Temple spread is not even
• To eliminate a gap between the lens and a metal eyewire, the best alternative is
to:
A. Place a strip of lens liner at a point exactly opposite the gap
B. Place a strip of lens liner in the gap area
,C. Heat the lens in the frame and allow it to cool at room temperature
D. None of the above methods are satisfactory
E. All of the above methods are satisfactory . CORRECT ANSWER: Place a strip of
lens liner at a point exactly opposite the gap
• The larger the frame difference --------- the lens shape
A. Rounder
B. More squared off
C. Narrower
D. Wider . CORRECT ANSWER: Narrower
(Frame Difference=A-B)
• Which is the most favorable alternative to a 50/20 frame for measuring bifocal
height when that particular size is not available?
A. 52/18
B. 50/18
C. 48/20
D. 50/22 . CORRECT ANSWER: 48/20
(would want bridge to stay the same)
, • When the frame front is tested for four point tough, but only touches on the
two temporal sides, the frame --------
A. is skewed
B. has face form
C. is out of coplanar alignment
D. has X ing
E. none of the above . CORRECT ANSWER: Has face form
• Which of the following errors will not be detected by a four point touch test?
A. X-ing
B. Excess face form
C. Skewing
D. All of the above can be detected using a four point touch . CORRECT ANSWER:
Skewing
• It is unnecessary to use heat in adjusting a zyl frame when:
A. Bending the endpieces
B. Changing the bridge area
C. Bending the temple earpiece
D. Changing the pantoscopic angle . CORRECT ANSWER: Changing the
pantoscopic angle
