The Coimbra Ophthalmology Reading Centre (CORC) is dedicated to grading retinal images in digital format as well as the certification of the technicians responsible for taking these images.  It is crucial for multicentric clinical trials in ophthalmology to have a Central Reading Centre involved.

CORC has all the necessary equipment for grading retinal images and has, at the moment, eight ophthalmologists, four technicians, and two secretaries. It has already certified technicians in other European countries for specific clinical trial studies.