Retinal disparity allows for construction of three-dimensional representations of space; two versions of the same scene are generated (one from each eye) and features from each view are matched by fusion of these two images (Menz and Freeman, 2003); the ability to achieve this is refined from infancy up to teenage years and into adulthood (Giaschi, Narasimhan, Solski, Harrison, & Wilcox, 2013).