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ABO Advanced Actual Exam Test Bank 2 Newest /
ABO Advanced Exam Preparation /ABO Advanced
Practice Exam With 500 Complete Questions And
Correct Detailed Answers With Rationales|Already
Graded A+||Newest Version!!
The amount of reflection of each surface of CR-39 lenses
is approximately - Answer-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 - Answer-D. tint and lens
transmission
The denser the tint in a lens
A. the greater the transmission of light through the lens
B. the greater internal reflections in the lens
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C. the less transmission of light through the lens
D. the fewer internal reflections in the lens - Answer-C. the
less transmission of light through the lens
Standard transmissions 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, - Answer-their ability to adapt to night
vision is compromised if they don't protect their eyes from
the sun exposure
A characteristic of dark tinted glass lens with an Rx of
+4.00D sphere would be - Answer-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 uniform density in a
sunlens?
A. Pigmented glass
B. CR-39
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C. Trivex
D. B & C - Answer-D. B & C
Although this may be the most popular color for
sunlenses, it is not recommended for patients with
emerging cataracts - Answer-Gray
_ added to any color increases contrast - Answer-Yellow
_ is better than _ for improving contrast.
A. Violet/Gray
B. Green/Gray
C. Gray/Green
D. Gray/Violet - Answer-B. Green/Gray
Glare is of more concern to which wearer?
A. Red haired patient
B. Computer user
C. Cataract patient
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D. Presbyope - Answer-C. 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 - Answer-
Vacuum color coatings
What company introduced CR-39 lenses? - Answer-PPG
Industries
What is the index of refraction of polycarbonate? - Answer-
1.586 or 1.59
The quality of today's polycarbonate lenses has been
improved due to the demand of what product? - Answer-
Compact discs
Birefringence is also referred to as _ and can result in
distortion reducing the visual performance to the wearer? -
Answer-Double refraction
What is the index of refraction of Trivex? - Answer-1.53
ABO Advanced Actual Exam Test Bank 2 Newest /
ABO Advanced Exam Preparation /ABO Advanced
Practice Exam With 500 Complete Questions And
Correct Detailed Answers With Rationales|Already
Graded A+||Newest Version!!
The amount of reflection of each surface of CR-39 lenses
is approximately - Answer-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 - Answer-D. tint and lens
transmission
The denser the tint in a lens
A. the greater the transmission of light through the lens
B. the greater internal reflections in the lens
,2|Page
C. the less transmission of light through the lens
D. the fewer internal reflections in the lens - Answer-C. the
less transmission of light through the lens
Standard transmissions 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, - Answer-their ability to adapt to night
vision is compromised if they don't protect their eyes from
the sun exposure
A characteristic of dark tinted glass lens with an Rx of
+4.00D sphere would be - Answer-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 uniform density in a
sunlens?
A. Pigmented glass
B. CR-39
,3|Page
C. Trivex
D. B & C - Answer-D. B & C
Although this may be the most popular color for
sunlenses, it is not recommended for patients with
emerging cataracts - Answer-Gray
_ added to any color increases contrast - Answer-Yellow
_ is better than _ for improving contrast.
A. Violet/Gray
B. Green/Gray
C. Gray/Green
D. Gray/Violet - Answer-B. Green/Gray
Glare is of more concern to which wearer?
A. Red haired patient
B. Computer user
C. Cataract patient
, 4|Page
D. Presbyope - Answer-C. 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 - Answer-
Vacuum color coatings
What company introduced CR-39 lenses? - Answer-PPG
Industries
What is the index of refraction of polycarbonate? - Answer-
1.586 or 1.59
The quality of today's polycarbonate lenses has been
improved due to the demand of what product? - Answer-
Compact discs
Birefringence is also referred to as _ and can result in
distortion reducing the visual performance to the wearer? -
Answer-Double refraction
What is the index of refraction of Trivex? - Answer-1.53
