At CAO, we work to serve members through a number of initiatives, from advocacy and communications work to policy, research and guideline development. CAO promotes and supports our membersÃ?Â¢?? relationships with patients, other health professions, industry partners, government and stakeholders. Membership in CAO, available through your provincial association allows optometrists from across the country to contribute and connect through events, education, conferences, publications, research and networking. CAO offers complimentary membership to students. If you are enrolled in a recognized school of optometry in Canada or the United States, contact the CAO for an application form. If you are a doctor of optometry in Canada and not currently a member of CAO, please contact your provincial association for more information.