• P. Adamson, “Vision, Light and Color in al-Kindī, Ptolemy and the Ancient Commentators,” Arabic Sciences and Philosophy 16 (2006), 207-36.

• D.C. Lindberg, Theories of Vision from al-Kindi to Kepler (Chicago: 1976).

• D.C. Lindberg, Studies in the History of Medieval Optics (Aldershot: 1983).

• M. Meyerhof, The Book of Ten Treatises on the Eye Ascribed to Hunain Ibn Is-Hāq (Cairo: 1928).

• E. Kheirandish, “The Many Aspects of ‘Appearances’: Arabic Optics to 950 AD,” in The Enterprise of Science in Islam, ed. J.P. Hogendijk and A.I. Sabra (Cambridge, MA: 2003), 55-83.

• A.I. Sabra, The Optics of Ibn Al-Haytham Books I-III: On Direct Vision, 2 vols (London: 1989).

• A.M. Smith, “The Alhacenian Account of Spatial Perception and its Epistemological Implications,” Arabic Sciences and Philosophy 15 (2005), 219-40.