American Board of Opticianry (ABO) Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the ABO exam with confidence. Our comprehensive resources, including quizzes and study materials, will help you master essential opticianry concepts and pass the American Board of Opticianry exam with ease. Get started today!

Practice this question and more.

Which lens material is the most commonly used plastic material in optical frames?

CR-39
Polycarbonate
Trivex
Cellulose Acetate

The correct answer is: Cellulose Acetate

Cellulose Acetate is the correct answer because it is the most commonly used plastic material in optical frames. Cellulose Acetate is valued for its durability, flexibility, and wide range of color possibilities, making it a popular choice for eyeglass frames. Among the other options: - CR-39 is a type of plastic lens material known for its optical clarity, but it is not commonly used for the frames themselves. - Polycarbonate is a lightweight and impact-resistant lens material, but similar to CR-39, it is not typically used for the frames. - Trivex is another lens material known for its impact resistance and clarity, but like the previous options, it is not the most commonly used plastic material for optical frames.