ABO NOCE Basic Opticianry Ophthalmic Lenses and Materials Questions and Answers

Question 1

A patient who does a significant amount of night driving complains of distracting glare and halos from oncoming headlights.
Which lens treatment would be most effective in addressing this specific complaint?

Accepted Answer

Anti-reflective coating

Answer

Photochromic treatment

Answer

Scratch-resistant coating

Answer

Polarized filter

Question 2

Which of the following lens material properties is most directly associated with the amount of transverse chromatic aberration a patient is likely to experience?

Accepted Answer

Abbe Value

Answer

Specific Gravity

Answer

Index of Refraction

Answer

UV Attenuation

Question 3

A patient has a prescription of R: -1.50 DS and L: -5.00 DS and complains of eye strain and occasional double vision when reading through their new bifocals. This vertical imbalance at the reading level is best corrected by which of the following?

Accepted Answer

Applying a bicentric grind (slab-off)

Answer

Using a high-index material

Answer

Increasing the pantoscopic tilt

Answer

Ordering an aspheric lens design

Question 4

What is the primary optical advantage of an aspheric lens design compared to a standard spherical design, particularly in higher-powered prescriptions?

Accepted Answer

It reduces peripheral distortions and improves aesthetics.

Answer

It increases the specific gravity of the lens.

Answer

It eliminates all chromatic aberration.

Answer

It provides inherent polarization.

Question 5

Which of the following lens designs provides a continuous, seamless progression of power from distance to near vision without any visible lines?

Accepted Answer

Progressive addition lens

Answer

Executive bifocal

Answer

Flat-top 28 bifocal

Answer

Round-segment trifocal

Question 6

According to FDA regulations for standard "dress eyewear," what is the procedure used to test the impact resistance of a lens?

Accepted Answer

A 5/8 inch steel ball is dropped from 50 inches.

Answer

A 1/4 inch steel ball is dropped from 75 inches.

Answer

A high-velocity, low-mass projectile is fired at the lens.

Answer

The lens is subjected to a static load of 25 lbs for one minute.

A patient who does a significant amount of night driving complains of distracting glare and halos from oncoming headlights.Which lens treatment would be most effective in addressing this specific complaint?

A patient who does a significant amount of night driving complains of distracting glare and halos from oncoming headlights.
Which lens treatment would be most effective in addressing this specific complaint?