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
If the wearer complains that the glasses feel snug but still slip down the nose, one likely cause is that:
...
ABO practice exams 2024 LATEST UPDATE
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
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
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
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
The larger the frame difference --------- the lens shape
A. Rounder
B. More squared off
C. Narrower
D. Wider - 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 - 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 - ANSWER Has face form
, 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
D. They are lighter in weight
E. They are less expensive - ANSWER They are lighter in weight
A patient comes back to the optician complaining of pain behind the ears, possible cause are:
A. Temple tension too great
B. Uneven pressure
C. Temple endpieces angled in too much
D. All of the above - ANSWER All of the above
What type of frame may be heated until it bends under its own weight?
A. Zyle
B. Optyl
C. Nylon
D. None of the above - ANSWER Optyl
The steps for "finishing" a lens (in correct order) are:
A. Centeration, Spotting, Calculation, Blocking, Edging
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