ACTUAL CORRECT QUESTIONS AND
VERIFIED DETAILED ANSWERS
|CURRENTLY TESTING QUESTIONS AND
SOLUTIONS|ALREADY GRADED
A+|NEWEST|BRAND NEW VERSION
!!|GUARANTEED PASS
What is the term used to refer to a minus cylinder axis located near 90°?
A. "With Motion"
B. "Against the Rule"
C. "Against Motion"
D. "With the Rule"
B. "Against the Rule"
The radius of curvature of a 0.50 D lens is:
A. 530 mm
B. 2120 mm
C. 265 mm
D. 1060 mm
D. 1060 mm
Use the lens cross to determine the power at 059 in this example: +5.75-0.50x149.
A. +0.62D
B. +5.75D
C. +5.25D
D. -0.62D
C. +5.25D
The total power of a lens having a front surface curve of +3.00 and a back surface curve of -6.50
is:
A. -3.50 D
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,B. +3.00 D
C. +3.50 D
D. -6.50 D
A. -3.50 D
What percentage of the total cylinder power is located 45° from the axis?
A. 100%
B. 45%
C. 0%
D. 50%
D. 50%
At what axis must the power be determined to measure prismatic effect relative to PD?
A. 180
B. 90
C. 45
D. specified axis
A. 180
At what axis must the power be determined to measure prismatic effect relative to reading
imbalance?
A. 45
B. specified axis
C. 180
D. 90
D. 90
The index of refraction of the cornea is:
1.37
Myopia means the eye
A. is nearsighted
B. has distance blur
C. requires a (-) minus lens
D. all of the above
D. all of the above
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,The Retina contains
A. lab tools
B. lens information
C. light receptors
D. understock of frames
C. light receptors
Hyperopic people have difficulty seeing
A. distance objects
B. near objects
C. everything
D. nothing
B. near objects
How many ranges of vision do bifocals provide?
A. one
B. Three
C. Two
D. Infinite
C. Two
The top portion of a bifocal allows wearers to see:
A. objects in the distance
B. a & c
C. objects beyond arm's length
D. objects up to 18 inches
B. a & c
Characteristics of a plus (+) lens include:
A. thin center
B. minifies objects
C. converges light rays
D. corrects myopia
C. converges light rays
Polycarbonate lens material is:
A. heavy
B. tintable
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, C. most impact resistant material
D. totally scratch resistant
C. most impact resistant material
Which of the following would be considered a lens enhancement?
A. polycarbonate
B. anti-reflective coating
C. progressive
D. thin center
B. anti-reflective coating
Ultraviolet protection (UV) is not important to
A. children
B. women
C. elderly patients
D. none of the above
D. none of the above
The following information is required on a written prescription:
A. doctor's name
B. doctor's signature
C. date
D. all of the above
D. all of the above
Wavelengths that are "in phase" produce:
A. destructive interference
B. high frequencies
C. a big reflection
D. no reflection
C. a big reflection
Anti-reflective coating causes an ______________ situation.
out of phase (destructive interference)
Minus lenses combine prisms:
A. base to base
B. apex to apex
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