ABO NCLE | QUESTIONS WITH VERIFIED ACCURATE
ANSWERS | LATEST UPDATED
The refractive astigmatism indicated by the RX
+1.50 -1.75 x 35 is - Answers -Mixed
The patient's RX is -1.75 -.50 x 120 with a +2.00 ADD standard trifocal. What is the
power through the intermediate? - Answers --.75 -.50 x 120
The Geneva lens measure is designed to measure - Answers -Lens curvature
The focal length of a +5.00 diopter lens is - Answers -20 cm
The problem of prismatic imbalance at the reading level is called - Answers -
Anisometropia
Which of the following indicated the most acute distance vision? - Answers -20/15
Which of the following is not a potential correction for vertical balance? - Answers -
Vertex Compensation
The ability of the eye to focus on objects at varying distances is known as - Answers -
Accomodation
Anisekonia is due to - Answers -Unequal size retinal images
The corner of the eye where the upper and lower lids meet is the - Answers -Canthus
A ptosis crutch is used to - Answers -Drooping lid
In neutralizing a lens of unknown power your first reading is +1.00 the next reading that
focuses the cylinder target is -.25. What is the RX? - Answers -+1.00 -1.25
A +2.00 lens decentered in 5 mm beyond the patient's measured pd will create -
Answers -1 diopter base in prism
Which of the following conditions is indicated by the following RX:
O.D. +1.00 -1.00 x 180
O.S. -2.00 -.50 x 45 - Answers -Antimetropia
The loss of vision without any apparent defect to the eye is called - Answers -
Amblyopia
The ANSI cylinder tolerance for a -.25 cylinder is - Answers -Plus or minus 7 degrees
, Which of the following has no power in the 180 degree meridian? - Answers -+2.00 -
2.00 x 90
All specifications being equal which of the following materials will yield the thinnest
lens? - Answers -Polycarbonate
If the right temple is angled up the effect on the frame will be to - Answers -Lower the
right side
If the adjustable pads on a metal frame are re-positioned downwards into the bridge of
the frame the resulting effect on the fit will be to - Answers -Raise the front
Which recreational activity would be best suited with yellow lenses? - Answers -Hunting
Bicentrec grinding is a term synonymous with - Answers -Slab off
If a patient is wearing a +12.00 diopter sphere and the adjustment is made to move
them closer to the eyes, what effect will that have on the effective power of the lens? -
Answers -Decrease the plus power
Which RX of the following is the same as the following RX: -3.00 +2.50 x 25 - Answers
--.50 -2.50 x 115
Given a material of unknown index and the speed of light within that material as 10100
miles per second. Compute the index of refraction for that material. - Answers -1.62
Which of the following materials would make the safest lens in all circumstances? -
Answers -Polycarbonate
This agency is primarily concerned with safety in the workplace. - Answers -OSHA
Which of the following RX lenses should never be put into a Z87 frame? - Answers -
None of the above (not 2 mm nor 3 mm)
If your lensometer reads +.25 with no lens, a lens that measures -3.00 -1.50 x 180 is
actually - Answers --2.75 -1.50 x 180
When verifying an ADD on a 1 piece bifocal with a lens clock, a +2.00 ADD would clock
_____ in the distance and _____ in the segment. - Answers -+6.12, +8.12
What should you do when a consumer comes in and complains of severe eye pain? -
Answers -Refer them back to the eye doctor
The radius of curvature of a six diopter surface is - Answers -88.3 mm
ANSWERS | LATEST UPDATED
The refractive astigmatism indicated by the RX
+1.50 -1.75 x 35 is - Answers -Mixed
The patient's RX is -1.75 -.50 x 120 with a +2.00 ADD standard trifocal. What is the
power through the intermediate? - Answers --.75 -.50 x 120
The Geneva lens measure is designed to measure - Answers -Lens curvature
The focal length of a +5.00 diopter lens is - Answers -20 cm
The problem of prismatic imbalance at the reading level is called - Answers -
Anisometropia
Which of the following indicated the most acute distance vision? - Answers -20/15
Which of the following is not a potential correction for vertical balance? - Answers -
Vertex Compensation
The ability of the eye to focus on objects at varying distances is known as - Answers -
Accomodation
Anisekonia is due to - Answers -Unequal size retinal images
The corner of the eye where the upper and lower lids meet is the - Answers -Canthus
A ptosis crutch is used to - Answers -Drooping lid
In neutralizing a lens of unknown power your first reading is +1.00 the next reading that
focuses the cylinder target is -.25. What is the RX? - Answers -+1.00 -1.25
A +2.00 lens decentered in 5 mm beyond the patient's measured pd will create -
Answers -1 diopter base in prism
Which of the following conditions is indicated by the following RX:
O.D. +1.00 -1.00 x 180
O.S. -2.00 -.50 x 45 - Answers -Antimetropia
The loss of vision without any apparent defect to the eye is called - Answers -
Amblyopia
The ANSI cylinder tolerance for a -.25 cylinder is - Answers -Plus or minus 7 degrees
, Which of the following has no power in the 180 degree meridian? - Answers -+2.00 -
2.00 x 90
All specifications being equal which of the following materials will yield the thinnest
lens? - Answers -Polycarbonate
If the right temple is angled up the effect on the frame will be to - Answers -Lower the
right side
If the adjustable pads on a metal frame are re-positioned downwards into the bridge of
the frame the resulting effect on the fit will be to - Answers -Raise the front
Which recreational activity would be best suited with yellow lenses? - Answers -Hunting
Bicentrec grinding is a term synonymous with - Answers -Slab off
If a patient is wearing a +12.00 diopter sphere and the adjustment is made to move
them closer to the eyes, what effect will that have on the effective power of the lens? -
Answers -Decrease the plus power
Which RX of the following is the same as the following RX: -3.00 +2.50 x 25 - Answers
--.50 -2.50 x 115
Given a material of unknown index and the speed of light within that material as 10100
miles per second. Compute the index of refraction for that material. - Answers -1.62
Which of the following materials would make the safest lens in all circumstances? -
Answers -Polycarbonate
This agency is primarily concerned with safety in the workplace. - Answers -OSHA
Which of the following RX lenses should never be put into a Z87 frame? - Answers -
None of the above (not 2 mm nor 3 mm)
If your lensometer reads +.25 with no lens, a lens that measures -3.00 -1.50 x 180 is
actually - Answers --2.75 -1.50 x 180
When verifying an ADD on a 1 piece bifocal with a lens clock, a +2.00 ADD would clock
_____ in the distance and _____ in the segment. - Answers -+6.12, +8.12
What should you do when a consumer comes in and complains of severe eye pain? -
Answers -Refer them back to the eye doctor
The radius of curvature of a six diopter surface is - Answers -88.3 mm
