ABO PRE-TEST FINAL TEST Questions with Correct Answers
(Grade A+)
Question 1: If the wearer complains of the bifocal line being somewhat in his way when driving, the
problem may be alleviated by decreasing the distance between pads.True or False.
Answer: False
Question 2: 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.
Answer: Pressure is being applied by the temple shafts anterior to the ear
Question 3: 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.
Answer: Temple spread is not even
Question 4: ABO Blood Group System.
Answer: The only blood group system where individuals have antibodies to antigens absent from their
RBCs.
Question 5: 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.
Answer: Place a strip of lens liner at a point exactly opposite the gap
Page 1
,Question 6: The larger the frame difference --------- the lens shape
A. Rounder
B. More squared off
C. Narrower
D. Wider.
Answer: Narrower(Frame Difference=A-B)
Question 7: Karl Landsteiner.
Answer: First to perform forward and reverse grouping in blood typing.
Question 8: 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.
Answer: 48/20(would want bridge to stay the same)
Question 9: Forward Grouping.
Answer: Using antisera to detect antigens on an individual's RBCs.
Question 10: 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.
Answer: Has face form
Question 11: 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.
Answer: Skewing
Page 2
, Question 12: 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.
Answer: Changing the pantoscopic angle
Question 13: Reverse Grouping.
Answer: Detecting ABO antibodies in the patient's serum using known reagent RBCs.
Question 14: If you didn't adjust the eye piece on the lensometer and the power drum reads +0.25 when
the target lines are clear and focused. What do you expect the true readings for this pair of glasses be?
O. D. -1.75 OS +1.75
A. -1.50, +2.00
B. -1.75, +1.75
C. -1.75, +2.00
D. -1.50, +1.75.
Answer: -1.50, +2.00
Question 15: Antisera.
Answer: Monoclonal antibodies that are highly specific.
Question 16: What is the final step in fitting a frame to a patient?
A. Aligning the frame vertically
B. Aligning the frame horizontally
C. Adjusting the pantoscopic tilt
D. Adjusting the temples.
Answer: Adjusting the temples
Question 17: Anti-B Sera.
Answer: Sera with a yellow color due to acriflavine dye.
Question 18: If the frame is crooked with the right side higher than the left, which is not a possible
cause?
A. The left ear is lower than the right
B. The right temple is too short
C. The pantoscopic tilt of the right side needs to be decreased.
D. The pantoscopic tilt of the right side needs to be increased.
Answer: The pantoscopic tilt of the right side needs to be increased
Page 3
(Grade A+)
Question 1: If the wearer complains of the bifocal line being somewhat in his way when driving, the
problem may be alleviated by decreasing the distance between pads.True or False.
Answer: False
Question 2: 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.
Answer: Pressure is being applied by the temple shafts anterior to the ear
Question 3: 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.
Answer: Temple spread is not even
Question 4: ABO Blood Group System.
Answer: The only blood group system where individuals have antibodies to antigens absent from their
RBCs.
Question 5: 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.
Answer: Place a strip of lens liner at a point exactly opposite the gap
Page 1
,Question 6: The larger the frame difference --------- the lens shape
A. Rounder
B. More squared off
C. Narrower
D. Wider.
Answer: Narrower(Frame Difference=A-B)
Question 7: Karl Landsteiner.
Answer: First to perform forward and reverse grouping in blood typing.
Question 8: 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.
Answer: 48/20(would want bridge to stay the same)
Question 9: Forward Grouping.
Answer: Using antisera to detect antigens on an individual's RBCs.
Question 10: 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.
Answer: Has face form
Question 11: 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.
Answer: Skewing
Page 2
, Question 12: 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.
Answer: Changing the pantoscopic angle
Question 13: Reverse Grouping.
Answer: Detecting ABO antibodies in the patient's serum using known reagent RBCs.
Question 14: If you didn't adjust the eye piece on the lensometer and the power drum reads +0.25 when
the target lines are clear and focused. What do you expect the true readings for this pair of glasses be?
O. D. -1.75 OS +1.75
A. -1.50, +2.00
B. -1.75, +1.75
C. -1.75, +2.00
D. -1.50, +1.75.
Answer: -1.50, +2.00
Question 15: Antisera.
Answer: Monoclonal antibodies that are highly specific.
Question 16: What is the final step in fitting a frame to a patient?
A. Aligning the frame vertically
B. Aligning the frame horizontally
C. Adjusting the pantoscopic tilt
D. Adjusting the temples.
Answer: Adjusting the temples
Question 17: Anti-B Sera.
Answer: Sera with a yellow color due to acriflavine dye.
Question 18: If the frame is crooked with the right side higher than the left, which is not a possible
cause?
A. The left ear is lower than the right
B. The right temple is too short
C. The pantoscopic tilt of the right side needs to be decreased.
D. The pantoscopic tilt of the right side needs to be increased.
Answer: The pantoscopic tilt of the right side needs to be increased
Page 3
