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Ophthalmic Career Progression Program Volume III: Questions With Correct Answers (A+)
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Ophthalmic Career Progression Program Volume III: Questions With Correct Answers (A+)
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Ophthalmic Career Progression Program Volume III:Questions With Correct Answers (A+)
A lens dispersing white light into its component colors is an example of which
aberration? Right Ans - Chromatic Aberration
Which aberrations are of the greatest concern to a spectacle wearer? Right
Ans - Marginal (oblique) astigmatism and curvature of field.
The lens aberration that produces a shorter focal length for rays near the edge
of the lens than rays near the optical axis is called what? Right Ans -
Spherical aberration
Designers of corrected curve lenses give much consideration to this
aberration. Right Ans - Marginal (oblique) astigmatism
The aberration affecting image shape when wearing high plus lenses is called
what? Right Ans - Pincushion distortion
The aberration affecting image shape when wearing high minus lenses is
called what? Right Ans - Barrel distortion
What aberration is induced with pantoscopic tilt? Right Ans - Marginal
(oblique) astigmatism
The aberration that depends on the material the lens is made from is called
what? Right Ans - Chromatic aberration
The aberrations which are "narrow beam" aberrations include what? Right
Ans - Marginal (oblique) astigmatism and curvature of field
The aberration that can induce cylinder power in a spherical lens is called
what? Right Ans - Marginal (oblique) astigmatism
If the eyelashes rub the lenses, the fitter should...? Right Ans - Increase the
vertex distance
, If the wearer complains that the glasses feel snug but still slip down the nose,
one likely cause is that...? Right Ans - Pressure is being applied by the
temple shafts anterior to the ear
A wearer complains that the lenses are unequally distant from the eyes. To
correct this, one could Right Ans - Increase the temple spread on the side
farthest from the face
When the frame front is tested for four-point touch but only touches on the
two temporal eyewires, the frame Right Ans - has face form
Bowing the temples is an expression referring to Right Ans - curving the
temples around the head
If the eyewire touch the eyebrows, the adjustment to take care of this
condition would be Right Ans - all of the above
When adjusting the frame, the bifocal height can be lowered by using the
following adjustment Right Ans - using more pantoscopic tilt
To relieve the pressure causing soreness at the front edge of the nose pads, a
good adjustment would be Right Ans - decrease the flare of the pads
If the pads are bent down and the pads are realigned, this adjustment will
Right Ans - raise the front
If the left temple is angled down, this adjustment will Right Ans - raise the
left side of the front
If the pad arms are shortened, this adjustment will Right Ans - bring the
front closer in
If the pads are brought closer together this adjustment will Right Ans -
raise the front
If the left temple is angled out, this adjustment will Right Ans - bring left
side of front toward the left eye
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