Other Information: Use only if single-use container is intact. Use before expiration date marked on container. Store at 59 degrees - 86 degrees F (15 degrees - 30 degrees C). Retain this carton for future reference. Misc: Long-lasting hydration. Preservative-free. Lubricating and hydrating formula penetrates the surface to relieve dryness. Also recommended for Lasik dryness (if used for post-operative (e.g., Lasik) dryness and discomfort, follow your eye doctor's instructions). Make your dry eyes feel better with the drops doctors recommend. Refresh Optive Lubricant Eye Drops relieves dry eye symptoms by delivering long-lasting hydration to the tear film while also providing lubrication and protection to the ocular surface cells that can become damaged due to dry eye. Effectively relieves Dry Eye symptoms that may occur following Lasik surgery. Refresh Optive drops come in preservative-free single-use vials and are safe to use as often as needed, so your eyes can feel good - anytime, anywhere. What can cause dry eye? Heating and air conditioning. Computer use and reading. Wind and sun. Certain medications. Natural aging process. Lasik procedures. Questions or comments? Call 1.800.678.1605. refreshbrand.com. Made in Ireland.