The group's principal activities are development and commercialization of proprietary pharmaceutical products. the products of the group are used in the treatment of ocular, oncology, immunological and other diseases. the group offers photodynamic therapy, a field of medicine that uses photosensitizers, which are light-activated drugs, in the treatment of disease. the commercial products of the group include photosensitizers used in the treatment of vision loss and other ocular conditions in people over the age of 50. the products of the group are sold in canada, the united states, europe and other countries.