The phrase "perceived visually" refers to the act of seeing and interpreting something through the eyes. There are several synonyms that can be used to describe this, such as "viewed", "observed", "witnessed", "seen", and "watched". Each of these words denotes a similar action of looking at something and processing visual information. It is important to note that visual perception can vary greatly from person to person, and factors such as lighting, distance, and perception can all affect how an object or scene is perceived. Therefore, it is helpful to have a variety of synonyms to choose from when describing the act of visually perceiving something.