ABO Advanced Questions With Solutions guaranteed to Pass GRADED A+

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ABO Advanced
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Questions With Solutions
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guaranteed to Pass
GRADED A+

, The amount of reflection of each surface of CR-39 lenses is approximately - ANS 4%

The absorption of light in lenses is classified by two variables. What are they?

A. base curve and thickness
B. index of refraction and thickness
C. thickness and lens transmission
D. tint and lens transmission - ANS D. tint and lens transmission




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The denser the tint in a lens




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A. the greater the transmission of light through the lens
B. the greater internal reflections in the lens
C. the less transmission of light through the lens




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D. the fewer internal reflections in the lens - ANS C. the less transmission of light
through the lens

Standard transmissions in sunlenses should range between - ANS 15% and 30%
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If a person has exposure to sunlight at least 2 hours or more during the day, - ANS
their ability to adapt to night vision is compromised if they don't protect their eyes from
the sun exposure
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A characteristic of dark tinted glass lens with an Rx of +4.00D sphere would be - ANS
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dark in the center and lighter on the edge

Given a high plus or high minus Rx, which lens material would offer the best choice for
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uniform density in a sunlens?
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A. Pigmented glass
B. CR-39
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C. Trivex
D. B & C - ANS D. B & C

Although this may be the most popular color for sunlenses, it is not recommended for
patients with emerging cataracts - ANS Gray

_ added to any color increases contrast - ANS Yellow

_ is better than _ for improving contrast.