Cationorm is the first artificial tear to use positive-attraction for long-lasting relief. Treatment with the right eye drop can make a big difference in how your eyes feel and look. Cationorm is different from eye drops you might have tried before. It is known as a 'positively charged cationic emulsion'. This helps hydration stay on your eye surface, making it the first artificial tear to use positive-attraction for long-lasting relief. Cationorm is contained in a bottle known as a 'preservative-free multi-dose bottle'. This means you can keep using Cationorm without preservatives impacting your ocular surface health. Once open, Cationorm should be stored for no more than three months. For best results, apply 1 drop in each eye 1 to 4 times daily, at the first signs of discomfort. Wash your hands thoroughly. Tilt your head back and gently pull down your lower eyelid and look up. Hold the bottle above your eye, gently squeeze one drop and blink several times. Do not touch your eye or eyelashes with the tip of the bottle. Cationorm is also suitable for contact lens wearers.