Which of the following lenses has the lowest index of refraction?
A) Polycarbonate
B) Trivex
C) CR-39
D) Crown glass
E) Hi index 1.60
Correct Answer:
Verified
Q40: When measuring the patient's PD for a
Q41: What is the vision range in the
Q42: Which of the following is not a
Q43: What is the ABBE value of Crown
Q44: Which is not a factor in non-adaptation
Q46: Which lens is recommended for drill mounted
Q47: Which lens has the least UV absorption?
A)CR-39
B)Polycarb
C)Crown
Q48: A polarized lens always protects against 100%
Q49: What is the "bullet proof" lens of
Q50: Prentices rule for prism: Diopters (?) are
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents