ABO NCLE EXAM QUESTIONS WITH COMPLETE
SOLUTIONS
80 degrees from specified axis, a cylinder will show Correct
Answers 97% of its power
A -3.00 powered lens has a base curve of +4.25. What is the
ocular curve? Correct Answers -7.25
A +2.00 lens decentered in 5 mm beyond the patient's measured
pd will create Correct Answers 1 diopter base in prism
A +3.00 lens has the following prismatic effect at 10 mm below
the distance optical center: Correct Answers 3 diopters base up
A 10.00 diapter surface measured with a lens clock has a radius
of curvature equaling Correct Answers 53 mm
A Box-o-graph is used to measure lenses for Correct Answers
Size
A condition that describes an inflammation of the eyelid
margins is Correct Answers Blepharitis
A lens having a minus curve on both front and back is called
Correct Answers Biconcave
A lens that is crescent shaped with one of the sides measuring a
six diopter radius is known as a Correct Answers Meniscus lens
, A lens which reads +3.00 -2.00 x 180 is decented in 6 mm too
much. How much horizontal prism is created by this error?
Correct Answers 1.8 diapters base in
A minimum center thickness for a minus industrial lens
according to Z87 Standards is Correct Answers 3.0 mm
A minus 5 diapter lens decentered in 2 mm beyond what is
called for 1/10 achieve the correct PD creates Correct Answers
1 diopter of base out prism
A minus lens decentered "out" will result in a finished lens
which is Correct Answers Thicker nasally
A minus lens moved downward from the primary position will
result in Correct Answers Base up prismatic effect
A patient refracted at 15 mm is prescribed a -10.00 sphere. The
dispense finds that the actual fitting distance will be at 10 mm.
What should the compensated lens power be? Correct Answers
-9.50
A patient that complains that the floor seems to be concave is
possibly experiencing excessive Correct Answers Base down
prism
A patient that complains the floor seems to be convex is
possibly experiencing excessive Correct Answers Base up
prism
SOLUTIONS
80 degrees from specified axis, a cylinder will show Correct
Answers 97% of its power
A -3.00 powered lens has a base curve of +4.25. What is the
ocular curve? Correct Answers -7.25
A +2.00 lens decentered in 5 mm beyond the patient's measured
pd will create Correct Answers 1 diopter base in prism
A +3.00 lens has the following prismatic effect at 10 mm below
the distance optical center: Correct Answers 3 diopters base up
A 10.00 diapter surface measured with a lens clock has a radius
of curvature equaling Correct Answers 53 mm
A Box-o-graph is used to measure lenses for Correct Answers
Size
A condition that describes an inflammation of the eyelid
margins is Correct Answers Blepharitis
A lens having a minus curve on both front and back is called
Correct Answers Biconcave
A lens that is crescent shaped with one of the sides measuring a
six diopter radius is known as a Correct Answers Meniscus lens
, A lens which reads +3.00 -2.00 x 180 is decented in 6 mm too
much. How much horizontal prism is created by this error?
Correct Answers 1.8 diapters base in
A minimum center thickness for a minus industrial lens
according to Z87 Standards is Correct Answers 3.0 mm
A minus 5 diapter lens decentered in 2 mm beyond what is
called for 1/10 achieve the correct PD creates Correct Answers
1 diopter of base out prism
A minus lens decentered "out" will result in a finished lens
which is Correct Answers Thicker nasally
A minus lens moved downward from the primary position will
result in Correct Answers Base up prismatic effect
A patient refracted at 15 mm is prescribed a -10.00 sphere. The
dispense finds that the actual fitting distance will be at 10 mm.
What should the compensated lens power be? Correct Answers
-9.50
A patient that complains that the floor seems to be concave is
possibly experiencing excessive Correct Answers Base down
prism
A patient that complains the floor seems to be convex is
possibly experiencing excessive Correct Answers Base up
prism
