PRESERVATIVE-FREE LUBRICANT EYE DROPS, these Lubricant eye drops are artificial tears that replace the moisture that is lost on your eyes surface. The viciousness of artificial tears such as Oasis TEARS® PLUS and Oasis TEARS® lubricate the eyes to relieve the gritty dry sensations that cause irritation. Doctors often recommend preservative-free artificial tears such as these. Oasis TEARS® can be used as needed to relieve dry eye symptoms.