Nova Scotia College of Optometrists The Nova Scotia College of Optometrists (NSCO) is the self-regulating authority accountable for registering (licensing) and governing optometrists in Nova Scotia. The NSCO establishes the criteria for member's registration and ensures optometrists practice their profession in the best interest of the public.The NSCO was proclaimed on April 1st 2006 and governs itself according to the Nova Scotia Optometry Act, Chapter 43, Acts of 2005. more... See more text