ABO NOCE Basic Opticianry Spectacle Dispensing and Fitting Questions and Answers 2

Question 1

A patient complains their new progressive lenses cause the floor to appear to sway when walking. Which adjustment is most likely to reduce this effect?

Accepted Answer

Ensure proper monocular PD measurement was used

Answer

Incorrect monocular PD causes the wearer to view through off-center portions of the progressive corridor, causing spatial distortion and swim.

Question 2

When measuring the distance PD with a pupillometer, the instrument should be set to:

Accepted Answer

Infinity or far vision mode

Answer

For distance PD measurement, the pupillometer must be set to infinity (far vision mode) so the patient's eyes are parallel.

Question 3

A frame with a 52-18-140 size marking has a bridge size of:

Accepted Answer

18 mm

Answer

In the boxing system notation A-B-C, the middle number (18) represents the bridge (DBL) size in millimeters.

Question 4

Which fitting consideration is MOST important when dispensing high minus lenses to minimize edge thickness?

Accepted Answer

Select a frame with a small eye size

Answer

Smaller frames reduce the peripheral edge diameter of minus lenses, significantly decreasing edge thickness.

Question 5

Pantoscopic tilt is the angle formed between the lens plane and:

Accepted Answer

The horizontal plane

Answer

Pantoscopic tilt is measured as the angle the lens plane makes with the vertical — equivalently, the deviation from perpendicular to the horizontal plane.

ABO NOCE Basic Opticianry Practice Test

ABO NOCE Basic Opticianry Practice Test

ABO NOCE Basic Opticianry Spectacle Dispensing and Fitting Questions and Answers 2