ABO NOCE Basic Opticianry Frame Adjustment Techniques by Material 4

Question 1

A beta-titanium (memory metal) temple springs back after every attempt to adjust it. The BEST course of action is to:

Accepted Answer

Over-bend the temple slightly beyond the desired angle to compensate for spring-back

Answer

Beta-titanium's superelastic memory requires over-correction beyond the target position because the material will spring partway back to its original shape.

Question 2

Which of the following describes the correct technique for adjusting the end piece angle on an acetate frame to correct facial asymmetry?

Accepted Answer

Heat only the end piece area in a frame warmer, then carefully bend the temple at the hinge junction

Answer

Localized heating of the end piece softens only that area, allowing the temple angle to be changed at the hinge junction without distorting the rest of the frame.

Question 3

A patient's nylon (polyamide) frame is adjusted in the office, but by the next day the adjustment has partially relaxed. The optician should explain that:

Accepted Answer

Nylon has inherent flexibility and may require follow-up adjustment, and results are often less stable than with acetate

Answer

Nylon (polyamide) frames have high elasticity and may gradually creep back toward their original shape, making durable adjustments more challenging than with acetate.

Question 4

When should a frame warmer be used instead of hot water for softening an acetate frame?

Accepted Answer

A frame warmer should be used when the frame has embedded rhinestones or heat-sensitive decorations that water could damage

Answer

Hot water can loosen or damage decorative embellishments and certain adhesives; a frame warmer with controlled dry heat is safer for decorated or embellished frames.

Question 5

An optician is adjusting the vertex distance on a patient's high-plus lens frame by bringing the frame closer to the face. This adjustment is most commonly accomplished by:

Accepted Answer

Closing or narrowing the nose pad arms to move the frame forward on the nose

Answer

Closing the nose pad arms brings the frame closer to the face, reducing vertex distance, which is particularly important for high-plus lenses where vertex distance significantly affects effective power.

ABO NOCE Basic Opticianry Practice Test

ABO NOCE Basic Opticianry Practice Test

ABO NOCE Basic Opticianry Frame Adjustment Techniques by Material 4