Normal visions can also be referred to as typical, standard or customary visions. Alternatively, they can be described as average, regular or expected visual perceptions. Another synonym for normal visions is conventional, which implies that these are widely accepted and established forms of visual experience. In medical contexts, the term normative may be used to describe typical visual functions. It is important to note, however, that what is considered "normal" in terms of visual perception can vary between individuals, cultures and contexts. Therefore, it is also helpful to understand different variations of normality, such as typical variations, adaptive variations and pathological variations in visual perception.