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

Question 1

What is the pantoscopic tilt and what is the standard recommended angle?

Accepted Answer

The vertical angle of the frame front; typically 8–12°

Answer

Pantoscopic tilt is the angle of the frame front in the vertical plane (bottom tilted toward the face). The standard is approximately 8–12 degrees.

Question 2

When measuring monocular pupillary distance (PD), what is the correct procedure?

Accepted Answer

Measure from the center of the pupil to the center of the nose bridge for each eye separately

Answer

Monocular PD is measured from the center of each pupil to the center of the nose bridge, giving separate right and left measurements.

Question 3

What is the vertex distance and why does it matter for prescriptions over ±4.00 D?

Accepted Answer

The distance from the back lens surface to the cornea; it affects effective lens power at the eye

Answer

Vertex distance is the distance from the back surface of the lens to the cornea. For powers over ±4.00 D, this distance significantly affects the effective power at the eye.

Question 4

The facial measurement 'DBL' (distance between lenses) refers to:

Accepted Answer

The horizontal distance between the inner edges of the two lenses

Answer

DBL is the distance between lenses — the clear horizontal gap between the inner (nasal) edges of the two lenses in the frame.

Question 5

Which frame adjustment is used to correct a frame that sits too high on the patient's nose?

Accepted Answer

Increase the splay angle of the nose pads to widen the pad spread

Answer

Splaying the nose pads outward (increasing pad splay) lowers the frame by widening the support base, dropping the frame to the correct position.

ABO NOCE Basic Opticianry Practice Test

ABO NOCE Basic Opticianry Practice Test

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