In ABV terms, which statement best differentiates strabismus from amblyopia?

In ABV terms, which statement best differentiates strabismus from amblyopia?

• A. Strabismus is an ocular misalignment.
• B. Amblyopia is reduced visual acuity and function in one eye often due to suppression or anisometropia, affecting binocular vision.
• C. Strabismus involves reduced stereoacuity but not misalignment.
• D. Amblyopia is an ocular misalignment.

Answer: (B)

The main idea here is that amblyopia is a functional impairment of one eye’s visual processing that reduces acuity and compromises binocular vision, often because the brain suppresses input from the weaker eye or because of unequal refractive input (anisometropia). Strabismus, on the other hand, is a real misalignment of the eyes that can disrupt binocular fusion and stereo vision but is a motor issue, not the sensory processing deficit seen in amblyopia. So the best statement describes amblyopia as reduced visual acuity and function in one eye often due to suppression or anisometropia, affecting binocular vision. That captures the essence of amblyopia’s sensory consequence, distinct from the eye misalignment itself. The other choices either describe strabismus (the misalignment) or incorrectly imply amblyopia is a misalignment.

The main idea here is that amblyopia is a functional impairment of one eye’s visual processing that reduces acuity and compromises binocular vision, often because the brain suppresses input from the weaker eye or because of unequal refractive input (anisometropia). Strabismus, on the other hand, is a real misalignment of the eyes that can disrupt binocular fusion and stereo vision but is a motor issue, not the sensory processing deficit seen in amblyopia.

So the best statement describes amblyopia as reduced visual acuity and function in one eye often due to suppression or anisometropia, affecting binocular vision. That captures the essence of amblyopia’s sensory consequence, distinct from the eye misalignment itself. The other choices either describe strabismus (the misalignment) or incorrectly imply amblyopia is a misalignment.