ABO NOCE Basic Opticianry Trivia 4 — Questions and Answers
Question 1: Which federal law in the US requires that patients be given a copy of their eyeglass prescription after an eye exam?
- HIPAA
- The Eyeglass Rule (FTC) (Correct answer)
- The Americans with Disabilities Act
- The Contact Lens Rule
Correct answer: The Eyeglass Rule (FTC)
The FTC's Eyeglass Rule mandates that prescribers give patients a copy of their eyeglass prescription at no charge upon completion of the exam.
Question 2: What is the term for the horizontal distance between the patient's pupils, used for lens alignment?
- Vertex distance
- Pupillary distance (PD) (Correct answer)
- Optical center height
- Seg height
Correct answer: Pupillary distance (PD)
Pupillary distance (PD) is the measurement in millimeters between the centers of the two pupils, used to align lens optical centers.
Question 3: Which lens treatment is specifically designed to block high-energy visible (HEV) blue light?
- Photochromic coating
- Blue light blocking coating (Correct answer)
- Polarized coating
- Mirror coating
Correct answer: Blue light blocking coating
Blue light blocking coatings are designed to filter or absorb high-energy visible (HEV) blue light, commonly emitted by digital screens.
Question 4: What does 'transposition' mean in opticianry?
- Converting a prescription from one frame to another
- Rewriting a prescription in a different but equivalent cylinder form (Correct answer)
- Moving the optical center to a new position
- Adjusting progressive corridor length
Correct answer: Rewriting a prescription in a different but equivalent cylinder form
Transposition is the mathematical process of converting a prescription between plus and minus cylinder notation while keeping the optical effect identical.
Question 5: What is the index of refraction of standard CR-39 plastic lens material?
- 1.50 (Correct answer)
- 1.53
- 1.59
- 1.67
Correct answer: 1.50
CR-39 (Columbia Resin #39) has a refractive index of approximately 1.50, making it the standard reference for plastic ophthalmic lenses.
Question 6: A patient needs reading glasses and asks for the strongest magnification available OTC. What is the maximum power typically found in OTC readers?
- +1.00 D
- +2.00 D
- +3.00 D (Correct answer)
- +4.00 D
Correct answer: +3.00 D
OTC reading glasses are typically available up to +3.00 D; powers above this generally require a custom prescription.
Question 7: What is the primary purpose of frame adjustments at the pantoscopic tilt?
- To improve the cosmetic appearance of the frame
- To align the optical axis of the lens with the patient's visual axis (Correct answer)
- To reduce the frame weight on the nose
- To prevent the frame from sliding
Correct answer: To align the optical axis of the lens with the patient's visual axis
Pantoscopic tilt angles the bottom of the frame forward to align the lens optical axis with the patient's line of sight during normal reading posture.
ABO NOCE Basic Opticianry Trivia 4
Which federal law in the US requires that patients be given a copy of their eyeglass prescription after an eye exam?