For night time relief of persistent dry eyes, Advanced Eye Relief Eye Lubricant Ointment provides moisture to help relieve and comfort your dry eyes. While this Lubricating Night Eye Ointment helps provide nighttime relief of dry eye, it is gentle enough to be used as often as needed*. Advanced Eye Relief Eye Lubricant Ointment is also preservative free. This bottle contains .125 Oz of Night Time Persistent Dry Eye Ointment. *Stop use and ask a doctor if condition worsens or persists more than 72 hours