Contact Lens: Types of Vision Correction: References

American Academy of Ophthalmology. 2014-2015 Basic and Clinical Science Course. San Francisco: American Academy of Ophthalmology, 2014; v.1-13.

Boyd K. Proper Care of Contact Lenses. American Academy of Ophthalmology. http://www.aao.org/eye-health/glasses-contacts/contact-lens-care. Accessed October 2016.

Yanoff M, Duker JS. Ophthalmology, 4th edition. Philadelphia: Mosby, 2013.