ABO NCLE 2026/2027 QUESTIONS AND SOLUTIONS RATED
A+
✔✔The ability of the eye to focus on objects at varying distances is known as -
✔✔Accomodation
✔✔Anisekonia is due to - ✔✔Unequal size retinal images
✔✔The corner of the eye where the upper and lower lids meet is the - ✔✔Canthus
✔✔A ptosis crutch is used to - ✔✔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? - ✔✔+1.00 -1.25
✔✔A +2.00 lens decentered in 5 mm beyond the patient's measured pd will create -
✔✔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 - ✔✔Antimetropia
✔✔The loss of vision without any apparent defect to the eye is called - ✔✔Amblyopia
✔✔The ANSI cylinder tolerance for a -.25 cylinder is - ✔✔Plus or minus 7 degrees
✔✔Which of the following has no power in the 180 degree meridian? - ✔✔+2.00 -2.00 x
90
✔✔All specifications being equal which of the following materials will yield the thinnest
lens? - ✔✔Polycarbonate
✔✔If the right temple is angled up the effect on the frame will be to - ✔✔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 - ✔✔Raise the front
✔✔Which recreational activity would be best suited with yellow lenses? - ✔✔Hunting
✔✔Bicentrec grinding is a term synonymous with - ✔✔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? -
✔✔Decrease the plus power
✔✔Which RX of the following is the same as the following RX: -3.00 +2.50 x 25 - ✔✔-
.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. - ✔✔1.62
✔✔Which of the following materials would make the safest lens in all circumstances? -
✔✔Polycarbonate
✔✔This agency is primarily concerned with safety in the workplace. - ✔✔OSHA
✔✔Which of the following RX lenses should never be put into a Z87 frame? - ✔✔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 - ✔✔-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. - ✔✔+6.12, +8.12
✔✔What should you do when a consumer comes in and complains of severe eye pain?
- ✔✔Refer them back to the eye doctor
✔✔The radius of curvature of a six diopter surface is - ✔✔88.3 mm
✔✔The effect to the patient of a diopters of base up prism in each eye is - ✔✔No
perceived vision
✔✔A condition that describes an inflammation of the eyelid margins is - ✔✔Blepharitis
✔✔A Reverse slab off should be applied to the lens with the most - ✔✔Plus
✔✔Which of the following is not generally a factor in determining vertical imbalance? -
✔✔Sphere power in the 90 degree meridian
✔✔The best absorber of infrared radiation is a - ✔✔Green Glass lens
✔✔The spherical equivalent of the lens +1.00 -3.00 x 90 is - ✔✔-.50
A+
✔✔The ability of the eye to focus on objects at varying distances is known as -
✔✔Accomodation
✔✔Anisekonia is due to - ✔✔Unequal size retinal images
✔✔The corner of the eye where the upper and lower lids meet is the - ✔✔Canthus
✔✔A ptosis crutch is used to - ✔✔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? - ✔✔+1.00 -1.25
✔✔A +2.00 lens decentered in 5 mm beyond the patient's measured pd will create -
✔✔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 - ✔✔Antimetropia
✔✔The loss of vision without any apparent defect to the eye is called - ✔✔Amblyopia
✔✔The ANSI cylinder tolerance for a -.25 cylinder is - ✔✔Plus or minus 7 degrees
✔✔Which of the following has no power in the 180 degree meridian? - ✔✔+2.00 -2.00 x
90
✔✔All specifications being equal which of the following materials will yield the thinnest
lens? - ✔✔Polycarbonate
✔✔If the right temple is angled up the effect on the frame will be to - ✔✔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 - ✔✔Raise the front
✔✔Which recreational activity would be best suited with yellow lenses? - ✔✔Hunting
✔✔Bicentrec grinding is a term synonymous with - ✔✔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? -
✔✔Decrease the plus power
✔✔Which RX of the following is the same as the following RX: -3.00 +2.50 x 25 - ✔✔-
.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. - ✔✔1.62
✔✔Which of the following materials would make the safest lens in all circumstances? -
✔✔Polycarbonate
✔✔This agency is primarily concerned with safety in the workplace. - ✔✔OSHA
✔✔Which of the following RX lenses should never be put into a Z87 frame? - ✔✔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 - ✔✔-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. - ✔✔+6.12, +8.12
✔✔What should you do when a consumer comes in and complains of severe eye pain?
- ✔✔Refer them back to the eye doctor
✔✔The radius of curvature of a six diopter surface is - ✔✔88.3 mm
✔✔The effect to the patient of a diopters of base up prism in each eye is - ✔✔No
perceived vision
✔✔A condition that describes an inflammation of the eyelid margins is - ✔✔Blepharitis
✔✔A Reverse slab off should be applied to the lens with the most - ✔✔Plus
✔✔Which of the following is not generally a factor in determining vertical imbalance? -
✔✔Sphere power in the 90 degree meridian
✔✔The best absorber of infrared radiation is a - ✔✔Green Glass lens
✔✔The spherical equivalent of the lens +1.00 -3.00 x 90 is - ✔✔-.50
