What is the practical consequence of ARC in long-standing strabismus?

What is the practical consequence of ARC in long-standing strabismus?

• A. Total suppression of vision in the affected eye.
• B. Diplopia becomes severe.
• C. No diplopia occurs in any position.
• D. Maintains some fusion by reorganizing retinal correspondence.

Answer: (D)

Anomalous retinal correspondence is the brain’s adaptation in long-standing strabismus that changes how retinal points are matched between the two eyes. Instead of keeping the fovea of one eye aligned with the fovea of the other, the visual system reassigns a non-foveal retinal point in one eye to correspond with the fovea of the other eye. This rearrangement allows the images from the two eyes to be fused across many gaze positions, so the patient can maintain some single vision rather than experience persistent diplopia. That’s why the practical consequence is preserved fusion through reorganization of retinal correspondence. The idea that there would be total suppression or that diplopia would be severe in all positions isn’t accurate, and claiming no diplopia in any position is too absolute—ARC reduces but doesn’t guarantee perfection of single vision in every gaze.

Anomalous retinal correspondence is the brain’s adaptation in long-standing strabismus that changes how retinal points are matched between the two eyes. Instead of keeping the fovea of one eye aligned with the fovea of the other, the visual system reassigns a non-foveal retinal point in one eye to correspond with the fovea of the other eye. This rearrangement allows the images from the two eyes to be fused across many gaze positions, so the patient can maintain some single vision rather than experience persistent diplopia. That’s why the practical consequence is preserved fusion through reorganization of retinal correspondence. The idea that there would be total suppression or that diplopia would be severe in all positions isn’t accurate, and claiming no diplopia in any position is too absolute—ARC reduces but doesn’t guarantee perfection of single vision in every gaze.