AOA Vision Therapy and Rehabilitation 2

Question 1

Low vision rehabilitation is indicated when a patient's best-corrected visual acuity is:

Accepted Answer

20/70 or worse in the better eye with reduced functional ability

Answer

Low vision rehabilitation is appropriate for patients with best-corrected VA of 20/70 or worse that limits daily functioning and cannot be further improved by optical correction or treatment.

Question 2

Vergence therapy typically uses which primary instrument to improve fusional vergence ranges?

Accepted Answer

Prism bar or Brock string

Answer

Prism bars and the Brock string are foundational tools for training vergence demand and improving the amplitude and facility of fusional vergence responses.

Question 3

Binasal occlusion in prism glasses is used to treat which binocular vision condition?

Accepted Answer

Exophoria with convergence insufficiency

Answer

Binasal occlusion reduces peripheral fusion disruption and enhances accommodative convergence in patients with exophoric tendencies and convergence insufficiency.

Question 4

The critical period for amblyopia treatment is generally considered to close around:

Accepted Answer

7–9 years of age

Answer

The visual cortex retains neuroplasticity for amblyopia treatment most effectively up to age 7–9, though some response is possible into adolescence with intensive treatment.

Question 5

Eccentric viewing training in low vision rehabilitation teaches a patient to:

Accepted Answer

Use a preferred retinal locus outside the damaged macula

Answer

Eccentric viewing trains patients with central scotomas to consistently fixate using a healthy para-central preferred retinal locus (PRL) to maximize functional vision.

AOA - American Optometric Association Practice Test

AOA - American Optometric Association Practice Test

AOA Vision Therapy and Rehabilitation 2