EYEMIST contains Hydroxypropyl Methylcellulose, which is a type of medicine known as artificial tears. It is used to alleviate dry eye symptoms (e.g. condition associated with the use of visual display units, infrequent blinking, certain medical treatments, atmospheric pollution and drying atmospheres e.g. air-conditioning, central heating, wind and sun). It is also used to lubricate artificial eyes and moisten hard contact lenses. It functions similarly to natural tears in that it provides temporary relief from burning and discomfort caused by eye dryness.Disclaimer:For More Information Contact Your Physician