ABO PRACTICAL EXAM QUESTIONS WITH
VERIFIED ANSWERS [GUARANTEED PASS
100%]
Cancelling effect- subtract prism amounts - Correct Answers -BU/BU
BD/BD
BI/BO
Powers between 0.00 & +/- 3.00 - Correct Answers -Read in 1/8 diopters
.12
.37
.62
.87
Lensometer is also referred to as - Correct Answers -Lensmeter, focimeter, vertometer
To focus eyepiece - Correct Answers -1) while turned off. Place white sheet of paper against lens
stop.
2) turn focus ring all the way counter clockwise,and then back clockwise until sharp.
3) remove paper and turn lensometer on
4) move power drum to high plus, then turn away from you until sharp- should land at 0.00.
To read HORIZONTAL prism - Correct Answers -Axis must be @ 180°, if not, transpose rx.
P=hcmxd - Correct Answers -Prentice rule
P(prism)
Hcm(amount moved)
, D(diopter)
BO/BO - Correct Answers -Compounds- add
BI/BIF-FCorrectFAnswersF-Compounds-Fadd
BU/BDF-FCorrectFAnswersF-Compounds-Fadd
BU/BUF-FCorrectFAnswersF-Cancels-Fsubtract
BD/BDF-FCorrectFAnswersF-Cancels-Fsubtract
BI/BOF-FCorrectFAnswersF-Cancels-Fsubtract
BlackFnumbersFonFlensometerFpowerFdrumF-FCorrectFAnswersF-(+)
RedFnumbersFonFlensometerFpowerFdrumF-FCorrectFAnswersF-(-)
WhenFneutralizing,FifFyouFhaveFaFpowerFthatFisFinF1/8FdioptersFandFneedFtoFsubtractF-
FCorrectFAnswersF-AddF1FtoF1/8Famount
Ex.F.12,FyouFwouldFneedFtoFsubtractF.13
FocusFsphereFlinesFfirst,FifFcylinderFlinesFfocusFfirstF-FCorrectFAnswersF-RotateFaxisFdrumFbyF90°
WhenFyouFhaveFcylinderFpower,FturnFtheFpowerFdrumFtoF-FCorrectFAnswersF-
TheFhighFplus,FthenFgraduallyFreduceFpowerFuntilFoneFofFtheFmeridiansFcomesFintoFfocus.
VERIFIED ANSWERS [GUARANTEED PASS
100%]
Cancelling effect- subtract prism amounts - Correct Answers -BU/BU
BD/BD
BI/BO
Powers between 0.00 & +/- 3.00 - Correct Answers -Read in 1/8 diopters
.12
.37
.62
.87
Lensometer is also referred to as - Correct Answers -Lensmeter, focimeter, vertometer
To focus eyepiece - Correct Answers -1) while turned off. Place white sheet of paper against lens
stop.
2) turn focus ring all the way counter clockwise,and then back clockwise until sharp.
3) remove paper and turn lensometer on
4) move power drum to high plus, then turn away from you until sharp- should land at 0.00.
To read HORIZONTAL prism - Correct Answers -Axis must be @ 180°, if not, transpose rx.
P=hcmxd - Correct Answers -Prentice rule
P(prism)
Hcm(amount moved)
, D(diopter)
BO/BO - Correct Answers -Compounds- add
BI/BIF-FCorrectFAnswersF-Compounds-Fadd
BU/BDF-FCorrectFAnswersF-Compounds-Fadd
BU/BUF-FCorrectFAnswersF-Cancels-Fsubtract
BD/BDF-FCorrectFAnswersF-Cancels-Fsubtract
BI/BOF-FCorrectFAnswersF-Cancels-Fsubtract
BlackFnumbersFonFlensometerFpowerFdrumF-FCorrectFAnswersF-(+)
RedFnumbersFonFlensometerFpowerFdrumF-FCorrectFAnswersF-(-)
WhenFneutralizing,FifFyouFhaveFaFpowerFthatFisFinF1/8FdioptersFandFneedFtoFsubtractF-
FCorrectFAnswersF-AddF1FtoF1/8Famount
Ex.F.12,FyouFwouldFneedFtoFsubtractF.13
FocusFsphereFlinesFfirst,FifFcylinderFlinesFfocusFfirstF-FCorrectFAnswersF-RotateFaxisFdrumFbyF90°
WhenFyouFhaveFcylinderFpower,FturnFtheFpowerFdrumFtoF-FCorrectFAnswersF-
TheFhighFplus,FthenFgraduallyFreduceFpowerFuntilFoneFofFtheFmeridiansFcomesFintoFfocus.