The pinnacle of depth perception; subtle discrimination of depth based on the slightly different view each eye obtains A high level of stereopsis cannot be achieved without accurate binocular alignment and fusion
When both eyes work together well and good binocularity is achieved, the end result is 3D vision, or stereopsis This happens when the perceived image of one eye and the perceived image of another eye are combined in the brain and produce one image with more information Each image separately are similar, but not exactly the same The mind takes the small differences between the two images and adds them up into a richer, final picture The combined image is more than the two parts it was created from It is this added perception of the depth dimension that makes stereopsis so important
The ability to perceive three-dimensional depth due to the distance between a person's two eyes
Perception of depth, depending on the differences in the images projected on the retinas of the two eyes