Mixed Deck — All NOCE Topics Flashcards

A patient returns with a frame that is riding low, causing the bifocal to be too high. The nose pads are at their lowest adjustment. The best next step is:

Answer: Order a frame with a deeper bridge

If nose pad adjustment is exhausted, selecting a frame with a smaller or deeper bridge saddle will raise the frame's resting position on the nose.

The Humphrey lensmeter (automated lensometer) expresses cylinder in which form by default?

Answer: Both plus and minus, selectable

Most automated lensometers allow the user to select either plus or minus cylinder notation for the displayed prescription.

An optician in a licensed state dispenses eyeglasses using a prescription that expired 2 years ago without the patient's knowledge. This action primarily violates:

Answer: State opticianry licensure law and the FTC Eyeglass Rule

Using an expired prescription without the patient's awareness violates both state licensure laws governing scope of practice and the FTC Eyeglass Rule's requirements for valid prescriptions.

The Fairness to Contact Lens Consumers Act (FCLCA) requires contact lens prescribers to do which of the following?

Answer: Verify or deny third-party seller requests within 8 business hours

The FCLCA requires prescribers to verify or deny a contact lens seller's verification request within 8 business hours, after which passive verification (no response = confirmed) applies.

When transposing -2.00 -1.50 × 090, the result is:

Answer: -3.50 +1.50 × 180

To transpose: new sphere = sum of sphere and cylinder (-2.00 + -1.50 = -3.50), new cylinder = opposite sign (+1.50), new axis = 90° away (180).

A patient experiences swim and distortion when wearing new progressive lenses. Which adjustment is MOST likely to help?

Answer: Adjust pantoscopic tilt to match the prescribed value

Correcting pantoscopic tilt aligns the progressive lens zones to the patient's line of sight, reducing peripheral swim and distortion.

A dispensing optician verifies a finished lens using a lensometer. If the mires appear broken or distorted, this most likely indicates:

Answer: Scratched or defective lens surface

Broken or distorted mires in the lensometer indicate surface irregularities such as scratches, warpage, or coating defects.

What name is given to the propensity of the eye to turn from its natural position?

Answer: Phoria

When binocular seeing is disrupted, an eye alignment problem is known as a phoria. When the eyes are tired and only seldom noticeable, the person is unable to correct for the deviation. A tropia is when the eye never straightens out and is constantly turned in, out, up, or down, in contrast to a phoria. Exophoria is a transitory condition in which the eyes migrate outward. It is typically brought on by eye fatigue, stress, or occupations requiring close vision. Even when both eyes are open and attempting to cooperate, exotropia—an outward turning of the eyes—is more common and apparent. Exophoria is a transitory condition in which the eyes migrate outward. It is typically brought on by eye fatigue, stress, or occupations requiring close vision. Exotropia is another condition in which the eyes move outward, but it is more common and obvious, even when both eyes are open and attempting to function simultaneously.

When adjusting temples for a patient with asymmetrical ears, which measurement is most critical?

Answer: Temple length to bend

The temple length to bend must be individually set for each ear to ensure the frame sits level on an asymmetrical face.

A lens has a front surface power of +8.00 D and a back surface power of -4.00 D. What is its approximate total power?

Answer: +4.00 D

Approximate total power = +8.00 + (−4.00) = +4.00 D (thin lens approximation).

A patient's bifocal segment consistently drops below the lower lid margin after dispensing. The dispenser should:

Answer: Raise the segment height by adjusting the nose pads

Raising the nose pads lifts the frame and moves the segment upward to the proper position at or just below the lower lid.

A prismatic effect found at the optical center of a lens during lensometry most likely indicates:

Answer: A manufacturing defect or incorrect prism in the prescription

Prism measured at the optical center of the lens indicates either intentional prescribed prism or a manufacturing error, since a properly made non-prism lens should have zero prism at its optical center.

According to the FTC Eyeglass Rule, what is the maximum period an ophthalmic prescription can be considered valid if no expiration date is specified by the prescriber?

Answer: The FTC does not set a default; state law governs

The FTC Eyeglass Rule does not establish a default prescription expiration; expiration periods are governed by individual state laws.

A patient asks about the difference between a gradient tint and a solid tint. The key difference is:

Answer: Gradient tints transition from darker at the top to lighter at the bottom

A gradient tint fades from a darker concentration at the top of the lens (blocking overhead glare) to a lighter or clear area at the bottom (for reading or near tasks).

Which coating property of a modern top coat reduces fingerprint smudging and water spotting on AR-coated lenses by lowering surface energy?

Answer: Oleophobic (oil-repelling) properties of the hydrophobic top coat

Oleophobic coatings repel oils (including skin oils from fingerprints) by lowering the surface energy of the lens, causing oils and water to bead up rather than spread across the surface.

Which lens treatment is MOST effective at reducing glare from wet roads for a driver?

Answer: Polarized lenses

Polarized lenses eliminate horizontally polarized light that creates glare from flat reflective surfaces like wet roads, water, and snow.

Which document governs the professional conduct expectations that the American Board of Opticianry holds certified opticians to?

Answer: The ABO Code of Ethics

The ABO Code of Ethics outlines the professional conduct standards that ABO-certified opticians are expected to uphold.

A patient is looking 5 mm below the optical center of a lens with the prescription -4.00 -2.00 x 180. According to Prentice's Rule, what is the amount and direction of the vertical prism induced?

Answer: 2.0 Δ Base Up

Prentice's Rule states that Prism (Δ) = Power (D) x Decentration (cm). First, determine the power of the lens in the vertical (90°) meridian. Since the axis is 180°, the full cylinder power is felt at 90°. The power at 90° is the sphere power plus the cylinder power: -4.00 D + (-2.00 D) = -6.00 D. The decentration is 5 mm, which is 0.5 cm. Now apply Prentice's Rule: Δ = |-6.00| x 0.5 = 3.0 Δ. For a minus lens, the base of the prism is in the opposite direction of the decentration. Since the patient is looking down, the prism induced is Base Up.

Under HIPAA's Minimum Necessary Standard, an optical office employee should share a patient's PHI:

Answer: Only to the extent needed to accomplish the intended purpose

The Minimum Necessary Standard requires that only the least amount of protected health information needed to accomplish a specific task be accessed or disclosed.

Which lens material has the highest Abbe value, indicating the least chromatic aberration?

Answer: Crown glass

Crown glass has an Abbe value of approximately 59, the highest among common ophthalmic materials, meaning it produces the least chromatic aberration.