Exam (elaborations)
OPHTHALMIC CAREER PROGRESSION PROGRAM VOLUME III
- Course
- Institution
OPHTHALMIC CAREER PROGRESSION PROGRAM VOLUME III
[Show more]
Content preview
OPHTHALMIC CAREERPROGRESSION
PROGRAM VOLUME III
A lens dispersing white light into its component colors is an example of which
aberration? - Answers- Chromatic Aberration
Which aberrations are of the greatest concern to a spectacle wearer? - Answers-
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? - Answers- Spherical aberration
Designers of corrected curve lenses give much consideration to this aberration. -
Answers- Marginal (oblique) astigmatism
The aberration affecting image shape when wearing high plus lenses is called what? -
Answers- Pincushion distortion
The aberration affecting image shape when wearing high minus lenses is called what? -
Answers- Barrel distortion
What aberration is induced with pantoscopic tilt? - Answers- Marginal (oblique)
astigmatism
A wearer complains that the lenses are unequally distant from the eyes. To correct this,
one could - Answers- 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 - Answers- has face form
, Bowing the temples is an expression referring to - Answers- curving the temples around
the head
If the eyewire touch the eyebrows, the adjustment to take care of this condition would
be - Answers- all of the above
When adjusting the frame, the bifocal height can be lowered by using the following
adjustment - Answers- using more pantoscopic tilt
To relieve the pressure causing soreness at the front edge of the nose pads, a good
adjustment would be - Answers- decrease the flare of the pads
If the pads are bent down and the pads are realigned, this adjustment will - Answers-
raise the front
If the left temple is angled down, this adjustment will - Answers- raise the left side of the
front
If the pad arms are shortened, this adjustment will - Answers- bring the front closer in
If the pads are brought closer together this adjustment will - Answers- raise the front
If the left temple is angled out, this adjustment will - Answers- bring left side of front
toward the left eye
To relieve tension on both ears, a good adjustment would be to - Answers- lengthen
both temples
The plier best used for adjustment of endpiece is the - Answers- wide angle end piece
plier
Increasing the pantoscopic angle of a cataract lens would most likely - Answers- induce
plus cylinder and plus sphere power
When a pair of spectacles is tilted so that the top of the lenses are closer to the face
than the bottom, it is called - Answers- retroscopic tilt
When a lens is tilted, sphere power and cylinder power are induced in the 90th meridian
- Answers- False
The aberration that depends on the material the lens is made from is called what? -
Answers- Chromatic aberration
The aberrations which are "narrow beam" aberrations include what? - Answers-
Marginal (oblique) astigmatism and curvature of field
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Greaterheights. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now