ACTUAL CORRECT QUESTIONS AND
VERIFIED DETAILED ANSWERS
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Which of the following aberrations is produced when a narrow beam of light passes obliquely
through a lens?
A. Chromatic aberration
B. Marginal astigmatism
C. Coma
D. Spherical
B. Marginal astigmatism
Which of the following is used to check for lateral and vertical phorias?
A. Maddox rod
B. Jackson cross cylinder
C. Vector chart
D. Lester pole
Maddox rod
A patient will experience photophobia and poor near vision after______
A. Tonometry
B. Visual training
C. Duochrome test
D. Cycloplegic refraction
D. Cycloplegic refraction
When measuring a patient with a horizontal deviation, the Maddox rod should be positioned so
that the line forms a____
A. Square
B. Horizontal line
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,C. Vertical line
D. Oblique line
C vertical line
The instrument that provides information on the patients refractive status by reflecting light off
of the retina is_____
A. Ophthalmoscope
B. Tonometer
C. Phoropter
D. Retinoscope
D. Retinoscope
If the patient sees the red side clearer during a monocular duochrome test, the focal point is
A. In back of the retina
B. In front of the retina
C. On the retina
D. On the cornea
B. In front of the retina
If a patient is accommodating during a refraction, it may result in prescription with too
much____ power
A. Plus
B. Cylinder
C. Prism
D. Minus
D. Minus
The cross cylinder is used to refine:
A. Sphere abd cylinder power
B. Sphere and cylinder axis
C. Cylinder axis and power
D. Sphere power
C. Cylinder axis and power
Pseudomyopia can be relieved with___
A. Plus lenses
B. Minus lenses
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,C. Tinted lenses
D. Prism lenses
A. Plus lenses
To check accommodative facility, you would use which of the following?
A. +2.00/-2.00 flipper
B. Duochrome
C. Worth 4 for
D. Cross cylinder
A. 2.00/-2.00 flipper
Which of the following is a common mydriatic
A. Tropicamide
B. Phenylephrine
C. Cortisone
D. Betsxolol
A. Tropicmide
After reaching neutrality with a Retinoscope, if the examiner moves closer to the patient they
should observe_____ motion in all meridians
A. No
B. With
C. Against
B. With
When performing the Near Point Convergence Test, an object is moved toward the eye until the
patient reports it doubles or one eye loses fixation. This is known as the _____ point.
A. Break
B. Stop
C. Fusion
D. Fresnel
A. Break point
A patients visual acuity is recorded as 20/200 SC this would indicate
A. Their acuity without correction
B. Their acuity with correction
C. Their acuity is only slightly corrected
D. Their acuity was measured in South Carolina
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, A. Without correction
Sc-without correction
Cc- with correction
PH- pinhole
J- jaeger notation
When checking the near power of a front surface progressive the______ side of the lens should
face the operator
A. Convex
B. Concave
C. Convex for plus and concave for minus lenses
D. Concave for plus and convex for minus lenses
B concave
When fitting a frame to a progressive lens patient _____ degrees of panto tilt is recommended
A. 2-6
B. 6-8
C. 12-15
D. 15-20
C. 12-15
The amount of prism used for prism thinning a progressive lens should equal _____ of the add
power
A. 1/4
B. 1/2
C. 2/3
D. 3/4
C. 2/3
The engraved markings on a progressive lens are located ____ mm from the lens center
A. 14
B. 22
C. 34
D. 17
D. 17
The Ansi z80.1 distance refractive power tolerance for powers above 6.50d is ___
A. +-0.13
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