NAO VOLUME 3 Practice Test/Quiz Questions and correct solutions
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Course
NAO
Institution
NAO
NAO VOLUME 3 Practice Test/Quiz Questions and correct solutions
The correct transposed RX for -1.00-.50x37 is? - ANSWER -1.50 + 0.50 x 127
The correct transposition for +2.00 -2.00 x 060 is? - ANSWER Plano +2.00 x 150
An uncut lens must be at least _______ mm in diameter to all...
NAO VOLUME 3 Practice
Test/Quiz Questions and
correct solutions
, The correct transposed RX for -1.00-.50x37 is? - ANSWER -1.50 + 0.50 x 127
The correct transposition for +2.00 -2.00 x 060 is? - ANSWER Plano +2.00 x 150
An uncut lens must be at least _______ mm in diameter to allow the edging of a 54 mm
round lens decentered 3 mm in: - ANSWER 60 mm
A +3.00 sphere lens has a front base curve of +6.25. What is the back surface curve? -
ANSWER -3.25
A -2.00 -1.00 x 045 lens has a front base curve of +6.25. What are the back surface
curves? - ANSWER -8.25 -1.00
Moving the optical center of a plus lens inward from the correct PD results in _____ -
ANSWER Base in prism
Where will the optical center appear in a lensometer when neutralizing a left lens for
base in prism? - ANSWER To the left of the target center
Glazing is a term used to indicate _____ - ANSWER A defect that occurs when an
anti-reflective lens is tinted
Frequently, bicentric grinding (slab-off) is used as a means of obtaining prism in the
reading field to correct induced prism imbalance. The usual correction during the
fabrication process is achieved by grinding prism in the following direction: - ANSWER
up
A patient stops in to see you for adjustment of his glasses. After careful inspection you
find the only thing wrong that there is too much pantoscopic tilt. To make the necessary
adjustment you will: - ANSWER Angle the temples upward from the end pieces
If the RX is +2.00 -4.00 x 135, it would be necessary to decenter the lens _____to
create 1.00 prism base in : - ANSWER not possible
Rewrite the RX below, which is prescribed for a patient afflicted with double vision, so
as to make better balanced lenses:
OD -1.00 -0.50 x 090 5.00 BU
OS -1.25 - 0.50 x 090 1.00 BD - ANSWER OD -1.00 -0.50 x 090 3.00 prism BU
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