Refresh Optive Lubricant Eye Drops for Dry Eyes Relief - 30 Single-Use Containers (240 Drops Total) - Pack of 8 Boxes - Ideal for Contact Lens Wearers & Computer Users

Optive eye drops provides a lubricating and hydrating protective shield on the surface of the eye, and it then works below the tear film to provide protection to the cornea. In a healthy state, the tear film provides comfort and moisture to the eye. However, with insufficient tear production or excessive evaporation, the tear film becomes hypertonic, developing a high concentration of salt, and does not sufficiently hydrate or protect the surface of the eye.