AOC Evaluation & Continuing Education 2

Question 1

Which prism test is most commonly used to quantify the magnitude of a horizontal strabismus deviation?

Accepted Answer

Prism and alternate cover test

Answer

The prism and alternate cover test dissociates fusion and measures the full manifest plus latent deviation.

Question 2

What is the primary purpose of the Worth 4-dot test in orthoptic evaluation?

Accepted Answer

Evaluate sensory fusion and suppression

Answer

The Worth 4-dot test assesses whether a patient has binocular fusion, suppression, or diplopia under dissociated conditions.

Question 3

AOC Continuing Education Units (CEUs) must be completed within what time frame to maintain certification?

Accepted Answer

Every 3 years

Answer

AOC certified orthoptists must accumulate the required CEUs within each 3-year recertification cycle.

Question 4

During an orthoptic evaluation for accommodative esotropia, which test best determines the AC/A ratio?

Accepted Answer

Gradient method using lenses

Answer

The gradient method measures deviation at distance with and without added lenses to calculate the accommodative convergence to accommodation ratio.

Question 5

A patient demonstrates 20 prism diopters of esotropia at distance and 35 prism diopters at near. This pattern suggests:

Accepted Answer

High AC/A ratio esotropia

Answer

A significantly larger near deviation compared to distance deviation indicates a high AC/A ratio, characteristic of accommodative esotropia.

(AOC) American Orthoptic Council Practice Test