Oculus (a term from Latin oculus, meaning 'eye'), may refer to the following. Architecture. Oculus (architecture), a circular opening in the centre of a dome or in a wall. Arts, entertainment, and media. Oculus (film), a 2013 American supernatural psychological horror film directed by Mike Flanagan. Oculus (perspective), the point in space where a viewer sees a scene to be depicted in a picture plane. Oculus, art installation by Kristin Jones and Andrew Ginzel at the Chambers Street–World Trade Center/Park Place subway station in Lower Manhattan, New York City.
https://en.wikipedia.org/wiki/Oculus