Hycosan Dual is a lubricating eye drop with a dual action formulation to combat dry eye at its root cause. Contact lens compatible 6 months sterility after opening. Preservative free Using Hycosan Eye Drops can help relieve your dry, irritated eyes. They are ideal for contact lens wearers who experience dryness and fatigue in their eyes during the day. These eye drops would provide the relief you've been looking for if you have dry, itchy eyes.