Systane Ultra UD Lubricant Eye Drops is a lubricating ophthalmic drops that come in 30 comfortable single-dose containers of 0.7 ml each. Systane Ultra UD Lubricant Eye Drops provides instant and short-term improvement of symptoms which are caused due to the use of contact lenses, wind, cold, heating and air conditioning, pollution etc. You can take them with you anywhere, whether to work, travel in a small handbag or shoulder bag or simply in your pocket to have them always at your disposal when you most need to rehydrate your eyes.