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ABO / NAO QUESTIONS AND ANSWERS WITH VERIFIED SOLUTIONS | LATEST UPDATE 2025
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ABO / NAO QUESTIONS AND ANSWERS WITH VERIFIED SOLUTIONS | LATEST UPDATE 2025
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ABO / NAO QUESTIONS AND ANSWERS WITHVERIFIED SOLUTIONS | LATEST UPDATE 2025
what is the conversion from inches to meters? - ANSWER one meter equals
approximate 40 inches
20 feet is equivalent to how many meters - ANSWER 6
what measuring device is used to accurately measure A and B measurements of a
finished lens or pattern - ANSWER box - o -graph
what is the lens power in the 90th meridian for this lens prescription?
+3.00+1.00x180 - ANSWER +4.00
a lens prescription of -2.25 D is made on a +6.00 base curve. the curve ground into
the ocular surface would be what? - ANSWER the nominal power of a lens is
the sum of its front and back surfaces -8.2
what should you do when a customer complains of severe eye pain? - ANSWER
tell them to call a dr.
60 degrees from the axis a cylinder will show what percent of its power? -
ANSWER 75%
if your lensmeter reads -.25 with no lens, a lens that measures -3.00 -1.50 x 180 is
actually: - ANSWER -2.75 -1.50 x 180
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