Exam (elaborations)
ODP Contact Lens Pre-Final Assessment 1 Exam Questions and Answers
- Course
- Institution
ODP Contact Lens Pre-Final Assessment 1 Exam Questions and Answers
[Show more]
Content preview
ODP: Contact Lens Pre-FinalAssessment 1 Exam Questions and
Answers
What staining pattern will have a large break or area of erosion? - Answer -Abrasion
What is the index of refraction of the cornea? - Answer -1.376
What is the typical optical zone diameter of a corneal alignment fit? - Answer -8.0 mm
What are the layers of the corneal from inside out? - Answer -Endothelium, Descemet's
membrane, Stroma, Bowman's Layer, Epithelium
Who Will Likely need corrective lenses at a younger age? - Answer -A myope
Where can the chemical make-up of a hydrogel lens be found? - Answer -Package
insert
How long should a soft lens be allowed to settle on the eye before evaluation the fit? -
Answer -At lest 20 minutes
Scleral lenses should be inserted: - Answer -Directly on the cornea
What type of astigmatism may be revealed when a rigid contact lens is applied? -
Answer -Lenticular
At what power do you make adjustments for vertex distance? - Answer -+ or - 4.00
How can a flat cornea, even down to 31.00 diopters, be measured? - Answer -With the
use of a -1.00 trial lens
What instrument is used to determine the power of a rigid contact? - Answer -
Lensometer
What is the primary funtion of the digital corneal topographer? - Answer -Measure the
curvature of the cornea
, A special lens with a soft holder lens and a rigid center used to treat keratoconus is
called: - Answer -The piggyback
What is a reason to choose a higher DK fluorocarbon material over soft hydrogel? -
Answer -They are durable and require less requent replacement
F.E. Muller provided a lens or "glass shell" to Dr. Theodor Samisch to treat what
condition? - Answer -Loss of the upper lid
The first company to market soft contacts is the US: - Answer -Bausch and Lomb
What are the layers of the tear film from outside in? - Answer -Lipid, Aqueous, Mucin
What is the index of refraction of glass if light travels through the glass at a speed of
133,000 mi/sec: - Answer -1.398
Before 1930 what material was used for contact lenses? - Answer -Glass
What is the process of removing plastic from the bottom of a contact to produce a flat
edge to control rotation is called: - Answer -Truncation
What should lens edge thickness for rigid gas permeable lenses be? - Answer -0.8 -
0.12
What is a collection of white blood cells that occur subepithelial? - Answer -Infiltrates
Silicone is a key ingredient in this lens: - Answer -SA
There are ______________ extrinsic muscles attached to each eye? - Answer -6
The keratometer is calibrated to what index of refraction? - Answer -1.3375
Leonardo DeVinci's concept of neutralizing the cornea with a contract like divide
included: - Answer -The use of water
When a patient presents with a spectacle Rx of -10.00, what power of contact lens
would likely be ordered? - Answer --9.00
Which is an example of against-the-rule astigmatism? - Answer -44.00@180/43.00@90
What is the most common removal method for a soft contact lens? - Answer -Pinch
When compared to a normal image size, an aphakic person will view the same image
as ____________ larger through contacts. - Answer -7%
What abnormal growth can invade the cornea? - Answer -Pterygium
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 millyphilip. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
71498 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now