ABO ABO Quality & Compliance 4 — Questions and Answers
Question 1: When inspecting a progressive addition lens (PAL) for quality compliance, which tool is essential for verifying the add power location?
- Geneva lens clock
- Distortion chart
- Lensometer with a cross-hair target (Correct answer)
- Polariscope
Correct answer: Lensometer with a cross-hair target
A lensometer with a cross-hair (or ring) target is used to locate the distance and near reference points on a PAL to verify add power and placement.
Question 2: Under the FDA's impact resistance requirements, which finishing process must glass lenses undergo to be dispensed as dress eyewear?
- Hardening through chemical tempering or heat treatment (Correct answer)
- Application of a polycarbonate laminate
- Coating with an impact-resistant UV film
- Compression molding at the lab
Correct answer: Hardening through chemical tempering or heat treatment
Glass dress lenses must be heat treated (thermally tempered) or chemically tempered to meet FDA impact resistance requirements for dress eyewear.
Question 3: A dispensary employee accesses a patient's prescription records out of curiosity without a treatment, payment, or operations reason. This violates:
- FTC Eyeglass Rule
- ANSI Z80.1 standards
- HIPAA minimum necessary standard (Correct answer)
- OSHA recordkeeping requirements
Correct answer: HIPAA minimum necessary standard
HIPAA's minimum necessary standard requires that access to protected health information be limited to what is needed for a legitimate purpose.
Question 4: For a frame with a 54-18-140 measurement, what does the '18' represent?
- Lens height in millimeters
- Bridge size in millimeters (Correct answer)
- Temple length in millimeters
- Total frame width in millimeters
Correct answer: Bridge size in millimeters
In standard frame sizing (lens-bridge-temple), the middle number '18' represents the bridge size (distance between lenses) in millimeters.
Question 5: Which of the following lens defects is most likely to cause a patient to report 'ghost images' or 'shadows' after spectacle dispensing?
- Incorrect base curve
- Excessive surface scratches on the back surface
- Unwanted prismatic effect from decentration (Correct answer)
- Incorrect vertex distance
Correct answer: Unwanted prismatic effect from decentration
Unwanted prism from optical center decentration displaces images, causing ghost images or diplopia that the patient may perceive as shadows.
Question 6: According to ANSI Z80.1, the axis tolerance for a lens with a cylinder power of -0.50 D is:
- ±3 degrees
- ±5 degrees
- ±7 degrees
- ±14 degrees (Correct answer)
Correct answer: ±14 degrees
ANSI Z80.1 allows ±14 degrees of axis tolerance for cylinders between 0.00 and -0.75 D because small cylinders have minimal clinical impact at slight axis deviations.
Question 7: A patient requests their prescription be released to purchase lenses online. Under the FTC Eyeglass Rule, the prescriber must:
- Refuse the request to ensure patient safety
- Provide the prescription only after the patient pays a release fee
- Provide the prescription at no charge without requiring a reason (Correct answer)
- Require the patient to sign a liability waiver first
Correct answer: Provide the prescription at no charge without requiring a reason
The FTC Eyeglass Rule requires prescribers to automatically provide the prescription after an exam at no charge, and cannot condition release on payment or a reason.
ABO ABO Quality & Compliance 4
When inspecting a progressive addition lens (PAL) for quality compliance, which tool is essential for verifying the add power location?