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ABO Advanced Actual Exam Newest 2025-2026/
ABO Advanced Exam Preparation /ABO
Advanced Practice Exam With 600 Complete
Questions And Correct Detailed Answers
|Already Graded A+|Brand New Version!!
The amount of reflection of each surface of CR-39 lenses is
approximately - ..........ANSWER.......B. 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
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B. the greater internal reflections in the lens
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.......C. Trivex
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
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B. Computer user
C. Cataract patient
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
ABO Advanced Actual Exam Newest 2025-2026/
ABO Advanced Exam Preparation /ABO
Advanced Practice Exam With 600 Complete
Questions And Correct Detailed Answers
|Already Graded A+|Brand New Version!!
The amount of reflection of each surface of CR-39 lenses is
approximately - ..........ANSWER.......B. 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
,2|Page
B. the greater internal reflections in the lens
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.......C. Trivex
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
, 4|Page
B. Computer user
C. Cataract patient
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
