Eyeglasses: Choosing Lenses: References

Eyeglasses for Vision Correction. American Academy of Ophthalmology. http://www.aao.org/eye-health/glasses-contacts/glasses. Dec. 1, 2015. Accessed September 2017.

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