NAO VOLUME IV TEST QUESTIONS & ANSWERS 100% SOLVED CORRECTLY TO PASS
3 views 0 purchase
Course
NAO VOLUME IV
Institution
NAO VOLUME IV
Features and benefits of trivex include_____: - ️️superior optics, impact resistance,
ultra-light weight (all of the above)
Given a high plus or minus RX, which lens material would offer the best choice for
uniform density in a sunlens? - ️️cr-39 plastic and trivex
If a person has expos...
NAO VOLUME IV
Features and benefits of trivex include_____: - ✔️✔️superior optics, impact resistance,
ultra-light weight (all of the above)
Given a high plus or minus RX, which lens material would offer the best choice for
uniform density in a sunlens? - ✔️✔️cr-39 plastic and trivex
If a person has exposure to sunlight at least 2 hours or more during the day, their _____
- ✔️✔️Ability to adapt to night vision is compromised if they don't protect their eyes
from the sun exposure
The amount of reflection of each surface of CR-39 plastic lenses is approximately: -
✔️✔️4%
The absorption of light in lenses is classified by two variables. What are they? -
✔️✔️Tint and lens transmission
The denser the tint in a lens, the _____: - ✔️✔️Less transmission of light through the
lens
Standard transmission in sunlenses should range between: - ✔️✔️15% and 30%
A characteristic of a dark tinted glass lens with an RX of +4.00D sphere would b_____ -
✔️✔️Dark in the center and lighter on the edge
Although this may be the most popular color for sunlenses, it is not recommended for
patients with emerging cataracts: - ✔️✔️gray
_____ added to any color increases contrast: - ✔️✔️yellow
_____ is better than _____ for improving contrast: - ✔️✔️green
Glare is of more concern to which wearer? - ✔️✔️cataract patient
_____ are generally inorganic materials (metals or minerals) that are vacuum deposited
to add color on glass lenses to give a uniform density of color on the lenses: -
✔️✔️vacuum color coatings
Which company introduced CR-39 plastic lenses? - ✔️✔️PPG Industries
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 PatrickKaylian. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.39. You're not tied to anything after your purchase.
