The Museum of Vision provides educational material for physicians, teachers and parents interested in teaching children about the eye, vision and ophthalmology.  The museum’s materials are suitable for ages 11 and up, but can be adapted for other age groups. Choose from Eye Openers: Exploring Optical Illusions, Art and Vision: Seeing in 3-D, and Animal Eyes.
http://www.aaofoundation.org/what/heritage/learn.cfm