How do members experience Swanson Proteolytic Enzyme? Top 5 reported purposes & perceived effectiveness Purpose Patients Evaluations Perceived Effectiveness This item is relevant to you: Central retinal vein occlusion 1 0 0% 0% 0% 0% 0% This item is relevant to you: Prevent blood clotting 1 0 0% 0% 0% 0% 0%