1. From Neurons to Neighborhoods: The Science of Early Childhood Development;Shonkoff,2000
2. Visual Development in normal and low vision children;Ferrell,2010
3. Visual development in students with visual and additional impairments;Mamer;J. Vis. Impair. Blind.,1999
4. EyeCanLearn, Eye Can Learn: Eye exercises for visual health and school success, http://www.eyecanlearn.com, [Online; accessed 18 March 2016], 2015.
5. Light Box: Activity Guide, Levels I, II, III, American Printing House for the Blind;Frere,1984