ABO NOCE Basic Opticianry Spectacle Dispensing Procedures 3

Question 1

Pantoscopic tilt refers to the angle formed between the lens plane and:

Accepted Answer

A vertical plane perpendicular to the line of sight

Answer

Pantoscopic tilt is the forward tilt of the lens plane measured from a vertical reference, typically 8–12° for most prescriptions.

Question 2

A patient's glasses slide down constantly despite proper nose pad adjustment. The most effective additional correction is:

Accepted Answer

Add retaining cable temples

Answer

Cable temples wrap around the ear, providing secure retention and preventing the frame from sliding on the face.

Question 3

When verifying a finished lens using a lensometer, the sphere power is read when:

Accepted Answer

The target is centered and the sphere lines are clear

Answer

In a manual lensometer, sphere power is confirmed when the sphere lines (one set) are brought into sharp focus with the target centered in the reticle.

Question 4

For a patient with a high minus prescription, which frame characteristic minimizes edge thickness?

Accepted Answer

Small eye size with centered PD

Answer

A small eye size minimizes the distance from the optical center to the edge, directly reducing edge thickness for minus lenses.

Question 5

When checking the fit of a newly dispensed frame, the optician observes the temples are diverging (spreading apart) behind the ears. This is corrected by:

Accepted Answer

Bending the temples inward at the bend

Answer

Bending the temple tips inward at the bend point creates inward tension, preventing the frame from spreading and improving retention.

ABO NOCE Basic Opticianry Practice Test

ABO NOCE Basic Opticianry Practice Test

ABO NOCE Basic Opticianry Spectacle Dispensing Procedures 3