ABO Quality & Compliance Flashcards
7 cards from real ABO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 ABO Quality & Compliance flashcards as text
Under ANSI Z80.1 standards, the maximum allowable cylinder power tolerance for a lens with a prescribed cylinder of -2.00 D is:
Answer: ±0.09 D
ANSI Z80.1 allows ±0.09 D cylinder power tolerance for cylinders between -2.00 D and -4.50 D.
Which federal law requires that all prescription eyeglass lenses dispensed in the United States must be impact resistant unless the prescriber specifies otherwise?
Answer: FDA 21 CFR Part 886
FDA 21 CFR Part 886 requires all dress eyeglass lenses to be impact resistant (e.g., polycarbonate or heat-treated glass).
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?
Answer: 0.40 prism diopters OU
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.
The FTC Eyeglass Rule primarily protects consumers by requiring:
Answer: Prescribers to provide a copy of the prescription at no charge after an eye exam
The FTC Eyeglass Rule requires prescribers to give patients a copy of their eyeglass prescription automatically after an exam at no additional charge.
OSHA's requirement for occupational eye protection (29 CFR 1910.133) mandates that protective eyewear must meet standards set by:
Answer: ANSI Z87.1
OSHA references ANSI Z87.1 as the accepted standard for occupational eye and face protection devices.
When verifying a finished spectacle lens, the lensometer reading shows +2.25 -0.50 × 090. The prescription is +2.00 -0.75 × 090. Which ANSI Z80.1 tolerance is exceeded?
Answer: Both sphere and cylinder tolerances
The sphere is off by +0.25 D (tolerance ±0.13 D for this power) and the cylinder is off by +0.25 D (tolerance ±0.09 D), so both are exceeded.
A dispensary receives lenses with an unacceptable number of surface scratches. Under quality compliance best practices, the FIRST action should be:
Answer: Return all affected lenses to the lab and document the issue
Lenses with surface defects exceeding ANSI standards must be returned to the lab; the issue should be documented for quality tracking and corrective action.