What is retinal disparity?

Retinal disparity refers to the difference in the images projected onto each eye due to their horizontal separation. Each eye captures a slightly different view of the world, which allows the brain to compare these two images. This comparison is crucial for depth perception; it enables individuals to gauge the distance of objects relative to themselves and the environment. The larger the disparity between the images perceived by the two eyes, the closer an object is perceived to be. This phenomenon is a key aspect of binocular vision and is integral to how we perceive three-dimensional space. Understanding retinal disparity helps illustrate the complex processes involved in visual perception and how depth cues are utilized in everyday life.