ABO practice exams
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
If the wearer complains that the glasses feel snug but still slip down the nose, one likely cause is that:...
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
Ans: False
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.
Ans: Pressure is being applied by the temple shafts anterior to the ear
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
Ans: Temple spread is not even
4). 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
Ans: Place a strip of lens liner at a point exactly opposite the gap
5).
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, The larger the frame difference --------- the lens shape
a. rounder
b. more squared off
c. narrower
d. wider
Ans: Narrower
(Frame Difference=A-B)
6). 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
Ans: 48/20
(would want bridge to stay the same)
7). 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
Ans: Has face form
8). 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
Ans: Skewing
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, 9). 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
Ans: Changing the pantoscopic angle
10). 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
Ans: -1.50, +2.00
11). 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
Ans: Adjusting the temples
12). 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
Ans: The pantoscopic tilt of the right side needs to be increased
13). The main reason for the use of lenticular lenses for high powers would be:
a. cosmetic reasons
b. they have more plus power
c. they have more minus power
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