What does binocular rivalry refer to?

Binocular rivalry is a phenomenon that occurs when two different images are simultaneously presented to each eye, leading to a competition between the two visual inputs. This competition results in the brain alternately perceiving one image or the other, rather than merging them into a single cohesive image. This occurs because each eye is transmitting distinct information that the visual processing centers of the brain are trying to reconcile.

The nature of this perceptual struggle makes binocular rivalry a critical area of study in understanding how the brain processes visual information and manages conflicting visual signals. It is particularly relevant in fields like vision science and psychology, where insights into visual perception are essential.

The other options pertain to unrelated concepts. For example, the visual clarity achievable through corrective lenses relates to a different aspect of vision, specifically how lenses enhance or restore focus rather than dealing with the competition of visual input. Eye strain from digital screens is a distinct issue concerning prolonged use and fatigue rather than the processing of conflicting images. Lastly, therapeutic methods for correcting vision typically involve techniques or procedures aimed at improving visual acuity or functionality, rather than describing a visual perception phenomenon.