The process of detecting and classifying simple sinusoidal patterns is known as spatial vision. Our contrast sensitivity function describes our spatial vision capacity. Various factors influence this sensitivity, including the observer's optical, retinal, neurological, and adaptive condition. Details are best perceived when they are imaged on the foveal (i.e., centre) parts of the retina in human spatial vision. Peripheral vision, on the other hand, provides a wealth of useful visual information. This data is utilised to direct eye movements and attention, improve depth and motion perception, and maintain balance and postural stability.