For the temporary relief of burning, irritation, and discomfort due to dryness of the eyes or exposure to wind or sun. May be used as a protectant against further irritation. Foster & Thrive Lubricant Eye Drops provide soothing relief for dry irritated eyes, which can be used by excessive heat, air conditioning, reading, medication, or computer use. This special formula instantly moisturizes and relieves dry, irritated eyes with a fast-acting, long-lasting formula for sensitive eyes that may have many of the same healthy qualities as natural tears. This product comes in preservative-free, single use vials and are safe to use as often as necessary, so your eyes can feel good - anytime, anywhere, without the risk of irritation from preservatives. Sterile.