The term "fisheye" refers to the distortion of an image that occurs when it is captured with a wide-angle lens. Synonyms for "fisheye" might include terms such as "ultra-wide," "wide-angle," "fishbowl," or "barrel," depending on the context in which the term is being used. Each of these terms describes a lens or an effect that results in a similar type of distortion, though some may be more pronounced or have different characteristics than others. While the term "fisheye" is often associated with photography, similar effects can also be seen in other types of media, such as video or virtual reality.