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NAO VOLUME IV (QUESTIONS & ANSWERS) GRADED A+
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NAO VOLUME IV (QUESTIONS & ANSWERS) GRADED A+
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NAO VOLUME IV(QUESTIONS &
ANSWERS) GRADED
A+
NAO
OCTOBER 13, 2024
EVATEE
, NAO VOLUME IV (QUESTIONS & ANSWERS)
GRADED A+
The amount of reflection of each surface of CR-39 plastic lenses is
approximately: Answer - 4%
The absorption of light in lenses is classified by two variables. What are they?
Answer - Tint and lens transmission
The denser the tint in a lens, the _____: Answer - Less transmission of light
through the lens
Standard transmission in sunlenses should range between: Answer - 15% and
30%
If a person has exposure to sunlight at least 2 hours or more during the day,
their _____ Answer - Ability to adapt to night vision is compromised if they
don't protect their eyes from the sun exposure
A characteristic of a dark tinted glass lens with an RX of +4.00D sphere would
b_____ Answer - Dark in the center and lighter on the edge
Given a high plus or minus RX, which lens material would offer the best choice
for uniform density in a sunlens? Answer - cr-39 plastic and trivex
Although this may be the most popular color for sunlenses, it is not
recommended for patients with emerging cataracts: Answer - gray
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