ABO NOCE Basic Opticianry Spectacle Dispensing Procedures Questions and Answers 3

Question 1

A patient's spectacles show a lateral tilt (one side higher than the other when placed on a flat surface). This is corrected by:

Accepted Answer

Aligning the X-ing of the frame

Answer

X-ing (twisting) the frame front corrects lateral tilt by counteracting the warp causing one side to sit higher.

Question 2

Which material requires a warm water bath or frame heater before adjustment to prevent breakage?

Accepted Answer

Zyl (cellulose acetate)

Answer

Zyl (cellulose acetate) must be heated before adjustment because it becomes brittle when cold and will crack if bent without warming.

Question 3

When measuring a patient's PD for single vision lenses, the corneal reflex method uses a penlight held at which position?

Accepted Answer

Directly in front of the examiner's dominant eye

Answer

Holding the penlight in front of the examiner's dominant eye ensures the light reflection aligns with the examiner's line of sight for accurate PD measurement.

Question 4

A wrap-style frame has a face form angle of 20°. If no compensatory adjustments are made to the prescription, what effect will this have?

Accepted Answer

Induced base-in prism

Answer

Excessive face form (wrap) without compensation induces unwanted base-in prism as the lens nasal edge tilts away from the eye.

Question 5

What is the purpose of the 'four-point touch' test when dispensing spectacles?

Accepted Answer

To ensure the frame contacts the face at four even points

Answer

The four-point touch test verifies the frame rests evenly at both nose pads and both temples, ensuring proper fit and stability.

ABO NOCE Basic Opticianry Practice Test

ABO NOCE Basic Opticianry Practice Test

ABO NOCE Basic Opticianry Spectacle Dispensing Procedures Questions and Answers 3