New Lumecare Singles Carmellose Eye Drops preservative free formulation eliminates the risk of preservative reactions such as toxic events, allergic reactions and disruption of the tear film. Soothing and lubricating: relieves ocular discomfort and irritation associated with dry eyes and environmental factors such as wind, salt-water, smoke or computer work. Suitable for use with all contact lenses: can be placed directly on the lenses to make insertion much more comfortable.