Allergan Optive Advanced Preservative-Free Lubricant Eye Drops are for the temporary relief of burning, irritation and discomfort due to dry eyes or exposure to wind or sun. May be used as a protectant against further irritation. Unique dual-action formula that lubricates and hydrates eyes to provide long-lasting relief from dry eye symptoms. Works in two ways to relieve the symptoms of dry eye by moisturising the surface of the eye while also hydrating the eye at the cellular level. Can be used as often as needed to relieve and treat intermittent dry eye symptoms. Comes in 30 vials (0.4 ml each).