Stereoscopic vision, also known as stereopsis, is a unique ability of the human eye to see objects in three dimensions. It is the result of the brain's ability to interpret the different images seen by each eye and merge them into a single, three-dimensional image. Synonyms for stereoscopic vision include depth perception, 3D vision, spatial perception, and binocular vision. These terms describe the same ability of the brain to interpret and combine the images from both eyes to give the sensation of depth and distance, which is essential for accurate perception of the physical world around us. Stereoscopic vision is crucial for activities such as driving, playing sports, and judging the distance of objects from us.