Help your dry or irritated eyes feel better with these Systane Balance lubricant eye drops. These eyedrops are sterile and safe for use by people who wear corrective lenses. The eyedrops help reduce dryness in the eyes that may be caused by allergies or by the prolonged use of contact lenses. The drops are designed to be used twice per day as needed in one or both eyes. Every bottle contains 10 milliliters of solution.