ABO PRACTICAL EXAM WITH CORRECT
ACTUAL QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY GRADED
A+ 2026
Save
Practice questions for this set
Learn 1 /7 Study with Learn
Progressive lens- distance
Single vision- near
Single vision- distance
Single vision- intermediate
Choose an answer
Cancelling effect- subtract prism Black numbers on lensometer
1 2
amounts power drum
3 To read HORIZONTAL prism 4 Take monocular PD for
Don't know?
, Terms in this set (37)
Cancelling effect- subtract prism BU/BU
amounts BD/BD
BI/BO
Powers between 0.00 & +/- 3.00 Read in 1/8 diopters
.12
.37
.62
.87
Lensometer is also referred to as Lensmeter, focimeter, vertometer
To focus eyepiece 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 Axis must be @ 180°, if not, transpose rx.
ACTUAL QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY GRADED
A+ 2026
Save
Practice questions for this set
Learn 1 /7 Study with Learn
Progressive lens- distance
Single vision- near
Single vision- distance
Single vision- intermediate
Choose an answer
Cancelling effect- subtract prism Black numbers on lensometer
1 2
amounts power drum
3 To read HORIZONTAL prism 4 Take monocular PD for
Don't know?
, Terms in this set (37)
Cancelling effect- subtract prism BU/BU
amounts BD/BD
BI/BO
Powers between 0.00 & +/- 3.00 Read in 1/8 diopters
.12
.37
.62
.87
Lensometer is also referred to as Lensmeter, focimeter, vertometer
To focus eyepiece 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 Axis must be @ 180°, if not, transpose rx.
