tear film break up time <10 seconds, or Schirmer's test <5.5 mm). Patients were treated with either preservative-free sodium hyaluronate or saline for 3 months at a dose of one drop 4–8 times a day.

The company and the product candidate, both named EternaTear, relate to an over-the-counter, preservative-free artificial tear for dry eye sufferers. Dry eye is characterized by itching and burning ...