It is essential that you follow your eye care professional’s directions and all labeling instructions for proper use of the product. If you experience persistent eye discomfort, excessive tearing, vision changes, or redness of the eye, stop using SYSTANETM BALANCE Lubricant Eye Drops and consult your eye care professional as the problem could become more serious. Temporary blurred vision or other visual disturbances may affect the ability to drive or use machines. If blurred vision occurs after application, wait until the vision clears before driving or using machinery.