The term hallucinatory polyopia is indebted to the Greek words polus (much, many) and opsis (seeing). It was introduced in or shortly before 1928 by the German-American biological psychologist and philosopher Heinrich Klüver (1897-1979) to designate a type of *polyopia characterized by the perception of multiple identical hallucinatory images. Klüver uses the term hallucinatory polyopia in opposition to *'objective' polyopia and *imaginal polyopia.
References
Klüver, H. (1966). Mescal and Mechanisms ofhallucinations. Chicago, IL: University of Chicago Press.
Dictionary of Hallucinations. J.D. Blom. 2010.