John E. Crews, DPA

Centers for Disease Control and Prevention
National Center for Chronic Disease Prevention and Health Promotion
4770 Buford Highway, K-10
Atlanta, GA
USA 30331
Email: jcrews@cdc.gov

Disclosure statement:

Qualified on the content I am responsible for because: I have worked in vision for 35 years, and produced 100 papers and book chapters.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.