Eyes Point in Different Directions (Strabismus): References

What Is Strabismus? American Academy of Ophthalmology. http://www.aao.org/eye-health/diseases/what-is-strabismus. Apr 14, 2014. Accessed September 2017.

American Academy of Ophthalmology. 2016-2017 Basic and Clinical Science Course. San Francisco: American Academy of Ophthalmology, 2016; v.1-13 .