2026 QUESTIONS AND ANSWERS 100% CORRECT
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Terms in this set (100)
When ordering a six inch temple, its corresponding
millimeter value is which of the following?
A. 135 mm
150 mm
B. 140 mm
C. 145 mm
D. 150 mm
What is the focal length of a 2 diopter lens?
A. 500 cm
500 mm B. 39.37 inches
C. 500 mm
D. 2 meters
Wavelengths are measured in
A. Meters
Nanometers B. Decimeters
C. Centimeters
D. Nanometers
, Which of the following has the shortest and therefore
most harmful wavelength?
A. UVC
UVC
B. UVB
C. UVA
D. INFRARED
When two light wavesw are in "in phase" they will
A. Destroy on another
Compound one another B. Reduce each front by half
C. Compound one another
D. None of the above
The cylinder axis tolerance for a 1.00D cylinder
according to ANSI Z80.1 is
A. Plus or minus 7 degrees
Plus or minus 3 degrees
B. Plus or minus 5 degrees
C. Plus or minus 3 degrees
D. Plus or minus 2 degrees
A plus lens decentered "out" will result in a finished
lens which is
A. Balanced
Thicker temporally
B. Thicker temporally
C. Thicker nasally
D. Uniform in edge thickness
A minus lens decentered "out" will result in a finished
lens which is
A. Balanced
Thicker nasally
B. Thicker temporally
C. Thicker nasally
D. Uniform in edge thickness
, An uncoated normal plastic lens will reflect
approximately ______% of light.
A. 2%
8%
B. 4%
C. 8%
D. 12%
A lens having a minus curve on both front and back is
called
A. Toric
Biconcave
B. Meniscus
C. Biconvex
D. Biconcave
Give the RX +1.00 +1.00 x 45, how much of the +1.00
cylinder is in the effect at axis 90?
A. 100%
50%
B. 70%
C. 50%
D. 0
80 degrees from the specified axis, a cylinder will
show
A. 5% of its power
97% if its power
B. 10% of its power
C. 50% of its power
D. 97% of its power
The type of patient often bothered by large
magnified eye look is a
A. Myope
Hyperope
B. Persbyope
C. Hyperope
D. Emmetrope