AOC Amblyopia Management and Treatment 1

Question 1

Which best defines amblyopia?

Accepted Answer

Reduced best-corrected visual acuity in one or both eyes without identifiable structural or pathological cause

Answer

Amblyopia is a developmental visual disorder defined as reduced best-corrected visual acuity without a structural or pathological cause, arising from abnormal visual experience during the critical period.

Question 2

Which type of amblyopia results from a significant difference in refractive error between the two eyes?

Accepted Answer

Anisometropic amblyopia

Answer

Anisometropic amblyopia develops when unequal refractive error causes one eye's retinal image to be chronically defocused, leading to suppression and reduced acuity in the more ametropic eye.

Question 3

What is the generally accepted critical period during which amblyopia treatment is most effective?

Accepted Answer

Birth to approximately 7–9 years of age

Answer

The critical period for visual development extends from birth to roughly 7–9 years; the visual cortex is most plastic during this window, making amblyopia treatment most effective at these ages.

Question 4

What is the recommended first step in managing most forms of amblyopia?

Accepted Answer

Prescribing and ensuring consistent wear of full optical correction

Answer

Full optical correction of any refractive error must be prescribed and consistently worn before initiating occlusion or penalization therapy, as refractive correction alone can significantly improve acuity.

Question 5

What degree of hyperopic anisometropia is generally considered sufficient to induce anisometropic amblyopia?

Accepted Answer

≥1.00 D

Answer

A hyperopic anisometropia of ≥1.00 D is broadly accepted as the threshold above which chronic defocus of the more hyperopic eye can lead to anisometropic amblyopia.

(AOC) American Orthoptic Council Practice Test

(AOC) American Orthoptic Council Practice Test

AOC Amblyopia Management and Treatment 1