ABO ABO Quality & Compliance 2

Question 1

Under ANSI Z80.1 standards, the maximum allowable cylinder power tolerance for a lens with a prescribed cylinder of -2.00 D is:

Accepted Answer

±0.09 D

Answer

ANSI Z80.1 allows ±0.09 D cylinder power tolerance for cylinders between -2.00 D and -4.50 D.

Question 2

Which federal law requires that all prescription eyeglass lenses dispensed in the United States must be impact resistant unless the prescriber specifies otherwise?

Accepted Answer

FDA 21 CFR Part 886

Answer

FDA 21 CFR Part 886 requires all dress eyeglass lenses to be impact resistant (e.g., polycarbonate or heat-treated glass).

Question 3

A patient's frame PD is 64 mm and the ordered monocular PDs are 33 OD / 29 OS. What is the total induced horizontal prism if the lens power is -4.00 D OU?

Accepted Answer

0.40 prism diopters OU

Answer

Each eye decenters 2 mm (64/2=32 vs 33 OD, 32 vs 29 OS gives 1 mm OD and 3 mm OS), with Prentice's rule yielding 0.4Δ OD and 1.2Δ OS—but checking: OD decenters 1 mm out → 0.4Δ BI; OS decenters 3 mm in → 1.2Δ BI; however standard tolerance applies per eye.

Question 4

The FTC Eyeglass Rule primarily protects consumers by requiring:

Accepted Answer

Prescribers to provide a copy of the prescription at no charge after an eye exam

Answer

The FTC Eyeglass Rule requires prescribers to give patients a copy of their eyeglass prescription automatically after an exam at no additional charge.

Question 5

OSHA's requirement for occupational eye protection (29 CFR 1910.133) mandates that protective eyewear must meet standards set by:

Accepted Answer

ANSI Z87.1

Answer

OSHA references ANSI Z87.1 as the accepted standard for occupational eye and face protection devices.

ABO - American Board of Optometry Practice Test

ABO - American Board of Optometry Practice Test

ABO ABO Quality & Compliance 2