Les membres des ECO sont:

• Alberta College of Optometrists
• British Columbia Board of Examiners in Optometry
• Manitoba Association of Optometrist
• Association des Optométristes du Nouveau-Brunswick
• Newfoundland Optometric Board
• Nova Scotia Association of Optometrists
• College of Optometrists of Ontario
• Prince Edward Island College of Optometrists
• Ordre des Optométristes du Québec
• Saskatchewan Association of Optometrists