ABO NOCE Basic Opticianry Spectacle Dispensing Procedures Questions and Answers 4

Question 1

Which adjustment increases the pantoscopic tilt of a metal frame?

Accepted Answer

Bending the endpiece to angle the frame bottom away from the face

Answer

Bending the endpiece so the bottom of the frame tilts away from the face increases pantoscopic tilt, angling the top of the frame closer to the brow.

Question 2

When ordering lenses for a rimless mounting, which measurement is MOST critical to provide accurately?

Accepted Answer

Exact lens shape and drill hole placement

Answer

In rimless mountings, the precise lens shape and drill hole placement are critical because errors cannot be corrected by the frame rim as in full-rim designs.

Question 3

A patient's progressive lenses show 'swim' (image movement) during lateral gaze. This symptom is MOST commonly associated with:

Accepted Answer

Incorrect PD causing improper fitting point alignment

Answer

Swim in progressive lenses is frequently caused by incorrect PD, which misaligns the fitting cross and distortion zones relative to the patient's pupils.

Question 4

What does 'effective diameter' (ED) represent in lens ordering?

Accepted Answer

The diameter of the smallest circle enclosing the entire lens shape

Answer

Effective diameter is the diameter of the smallest circle that can fully enclose the lens shape, used to determine minimum blank size needed.

Question 5

A patient with a monocular PD of 35 mm OD and 33 mm OS has their segments decentered. Which eye's segment should be positioned further nasally?

Accepted Answer

OS, because the PD is smaller

Answer

A smaller monocular PD (OS = 33 mm) means the pupil is closer to the nose, so the segment must be placed further nasally to align with the pupil.

ABO NOCE Basic Opticianry Practice Test

ABO NOCE Basic Opticianry Practice Test

ABO NOCE Basic Opticianry Spectacle Dispensing Procedures Questions and Answers 4