The refractive astigmatism indicated by the RX
+1.50 -1.75 x 35 is - ANSWER-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? - ANSWER--.75 -.50 x 120
The Geneva lens measure is designed to measure - ANSWER-Lens curvat...
ABO NCLE Exam Questions & Answers 100% Accurate
The refractive astigmatism indicated by the RX +1.50 -1.75 x 35 is - ANSWER-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? - ANSWER--.75 -.50 x 120
The Geneva lens measure is designed to measure - ANSWER-Lens curvature
The focal length of a +5.00 diopter lens is - ANSWER-20 cm
The problem of prismatic imbalance at the reading level is called - ANSWER-
Anisometropia
Which of the following indicated the most acute distance vision? - ANSWER-20/15
Which of the following is not a potential correction for vertical balance? - ANSWER-
Vertex Compensation
The ability of the eye to focus on objects at varying distances is known as - ANSWER-
Accomodation
Anisekonia is due to - ANSWER-Unequal size retinal images
The corner of the eye where the upper and lower lids meet is the - ANSWER-Canthus
A ptosis crutch is used to - ANSWER-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? - ANSWER-+1.00 -1.25
A +2.00 lens decentered in 5 mm beyond the patient's measured pd will create - ANSWER-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 - ANSWER-Antimetropia The loss of vision without any apparent defect to the eye is called - ANSWER-
Amblyopia
The ANSI cylinder tolerance for a -.25 cylinder is - ANSWER-Plus or minus 7 degrees
Which of the following has no power in the 180 degree meridian? - ANSWER-+2.00 -
2.00 x 90
All specifications being equal which of the following materials will yield the thinnest lens? - ANSWER-Polycarbonate
If the right temple is angled up the effect on the frame will be to - ANSWER-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 - ANSWER-Raise the front
Which recreational activity would be best suited with yellow lenses? - ANSWER-Hunting
Bicentrec grinding is a term synonymous with - ANSWER-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? - ANSWER-Decrease the plus power
Which RX of the following is the same as the following RX: -3.00 +2.50 x 25 - ANSWER--.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. - ANSWER-1.62
Which of the following materials would make the safest lens in all circumstances? - ANSWER-Polycarbonate
This agency is primarily concerned with safety in the workplace. - ANSWER-OSHA
Which of the following RX lenses should never be put into a Z87 frame? - ANSWER-
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 - ANSWER--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. - ANSWER-+6.12, +8.12
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