ABO/NAO 3 QUESTIONS AND ANSWERS
WITH VERIFIED SOLUTIONS | LATEST
UPDATE 2025
if the right temple is angled out, this adjustment will: - ANSWER bring the right
side of the front toward the right eye
when aphakic lenses are tilted too much pantoscopically , what can be expected
to occur? - ANSWER a error of refractive power is induced
which instrument would be used to check for strain in a lens? - ANSWER
colmascope it uses polarized light to show strain patterns in glass or plastic
measurement for segment heights on a new pair of glasses should be done using -
ANSWER the actual frame that will be worn
the MRP (major reference point) hieght must be measured for : high index ,
polycarbonate, minus lenses? or all of them? - ANSWER all of them, especially
important to measure PD's monocularly and to consider the vertical position of
the MRP on all rx's
if the seg. seems to low: - ANSWER adjust the pads closer together, move the
pads down and reduce pantoscopic tilt these will all have the effect of raising the
seg
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