ABO ABO Quality & Compliance 3 — Questions and Answers
Question 1: Under ANSI Z80.1, what is the maximum allowable optical center vertical imbalance for a single vision lens pair with a power of -3.00 D sphere?
- 0.33 prism diopters
- 0.67 prism diopters (Correct answer)
- 1.00 prism diopters
- 1.50 prism diopters
Correct answer: 0.67 prism diopters
ANSI Z80.1 allows a maximum vertical imbalance of 0.67 prism diopters for lenses up to ±3.375 D sphere equivalent.
Question 2: Which of the following is a requirement of the FTC Contact Lens Rule enacted in 2004 and updated in 2020?
- Prescribers must verify contact lens prescriptions within 8 business hours
- Sellers must obtain a verified prescription before selling contact lenses (Correct answer)
- Contact lens prescriptions expire after 6 months in all states
- Prescribers must dispense a trial pair before issuing a prescription
Correct answer: Sellers must obtain a verified prescription before selling contact lenses
The FTC Contact Lens Rule requires that sellers obtain a verified prescription before dispensing contact lenses to consumers.
Question 3: A lab returns spectacles with a base curve of 4.00 D when a 6.00 D base curve was ordered. This primarily affects:
- Lens weight and thickness only
- Optical performance due to off-axis aberrations (Correct answer)
- The UV protection level of the lens
- Antireflective coating adhesion
Correct answer: Optical performance due to off-axis aberrations
Incorrect base curve causes off-axis aberrations and can affect the effective power, particularly for higher prescriptions.
Question 4: HIPAA's Privacy Rule applies to optical dispensaries that transmit health information electronically because they are considered:
- Business associates
- Covered entities (Correct answer)
- Clearinghouses
- Hybrid entities
Correct answer: Covered entities
Optical dispensaries that transmit health information (e.g., prescription data, billing) electronically are classified as covered entities under HIPAA.
Question 5: According to ANSI Z80.1, the minimum clear aperture for a finished single vision spectacle lens is:
- 20 mm diameter
- The entire lens area must be optically clear
- The area within 5 mm of the optical center
- Sufficient to pass a 28 mm diameter circle centered on the optical center (Correct answer)
Correct answer: Sufficient to pass a 28 mm diameter circle centered on the optical center
ANSI Z80.1 requires that a finished lens pass a 28 mm diameter circle centered on the optical center with no defects.
Question 6: An optician discovers that a patient's bifocal seg height was cut 4 mm lower than prescribed. The best course of action is to:
- Adjust the frame to raise the seg position
- Reorder the lenses to the correct seg height specification (Correct answer)
- Dispense and instruct the patient to lower their chin when reading
- Add a reading add to the existing lenses
Correct answer: Reorder the lenses to the correct seg height specification
A 4 mm error in seg height exceeds acceptable tolerances and the lenses must be remade to the correct specification for proper optical function.
Question 7: The purpose of a verification log in an optical dispensary is primarily to:
- Record patient complaints for insurance purposes
- Document that finished eyewear meets ANSI standards before dispensing (Correct answer)
- Track inventory shrinkage and breakage
- Satisfy FTC Eyeglass Rule requirements
Correct answer: Document that finished eyewear meets ANSI standards before dispensing
A verification log documents that each pair of eyewear was checked against ANSI Z80.1 standards before being dispensed to the patient.
ABO ABO Quality & Compliance 3
Under ANSI Z80.1, what is the maximum allowable optical center vertical imbalance for a single vision lens pair with a power of -3.00 D sphere?