title: The deeper lesson of Alhazen.
authors.forename: A
authors.initials: A
authors.lastname: Gilchrist
mesh_terms: D004534:Egypt; D005858:Germany; D049691:History, Medieval; D006801:Humans; D055095:Optics and Photonics / Q000266:history*; D011601:Psychophysics / Q000266:history*; D014785:Vision, Ocular