The Opti-Free Pro Moisturizing Lens Drops are intended as a lens re-wetting product to ensure that your contacts are moist and hydrated throughout the day. Opti-Free’s advanced lubrication and cushioning formula also aims to offer a more comfortable wear to reduce eye irritation and dryness. Product should be stored at room temperature and remaining product should be discarded within 6 months of opening. Always speak with your eye care practitioner before using any new contact lens products and/or accessories.