Geometrical optics Category page Create Classic editor Talk0 This page needs content. You can help by adding a sentence or a photo. Add to this page!orSearch for "Geometrical optics" Lens (optics) Circle of confusion “ Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual... Entrance pupil Pages in category "Geometrical optics" The following 3 pages are in this category, out of 3 total. C Circle of confusionE Entrance pupilL Lens (optics) Retrieved from "http://psychology.wikia.com/wiki/Category:Geometrical_optics"