1. Bennett & Rabbetts’. Clinical Visual Optics, 4th ed.;Rabbetts,2007
2. Introduction to Visual Optics.;Tunnacliffe,1984
3. Physiological Optics [translated by El Hage SG].;Le Grand,1980
4. Treatise on Physiological Optics. Translated by Southall JPC, ed., vol 1.;von Helmholtz,1924
5. Geometric, Physical, and Visual Optics, 2nd ed.;Keating,2002