ABO NOCE Basic Opticianry Frame Adjustment Techniques by Material 3

Question 1

A patient's monel frame develops a green discoloration where it contacts the skin after adjustment. This is most likely caused by:

Accepted Answer

The frame's nickel content reacting with skin perspiration

Answer

Monel contains nickel which reacts with skin acids and perspiration, producing a greenish oxidation; some patients also experience nickel allergy symptoms.

Question 2

When adjusting a rimless (drill mount) frame, extra caution is required because:

Accepted Answer

The lenses are more susceptible to cracking at the drill holes when stressed

Answer

Drill-mounted rimless lenses bear stress directly at the drill holes, so aggressive or improper adjustments can crack the lens at those points.

Question 3

An optician is adjusting the pantoscopic tilt of a zyl frame. Which tool is most commonly used to make this adjustment?

Accepted Answer

Angling pliers after softening the frame in a frame warmer

Answer

Pantoscopic tilt on a plastic frame is set by warming the frame in a frame warmer and then using angling pliers to rotate the lens/eye wire relative to the temple.

Question 4

Which frame material is most at risk for becoming brittle and cracking if adjusted repeatedly without adequate heat?

Accepted Answer

Zyl (cellulose acetate)

Answer

Zyl (cellulose acetate) loses plasticizers over time and can become brittle; repeated cold bending accelerates stress fractures, making proper heating essential for each adjustment.

Question 5

A patient complains that their plastic frame feels tight across the temples after a proper adjustment session. The BEST next step is to:

Accepted Answer

Re-warm the temples and use temple-spreading pliers to open them slightly

Answer

Re-warming acetate or plastic temples allows them to be spread slightly with temple-spreading pliers to reduce lateral pressure on the patient's head.

ABO NOCE Basic Opticianry Practice Test

ABO NOCE Basic Opticianry Practice Test

ABO NOCE Basic Opticianry Frame Adjustment Techniques by Material 3