By overtime in the meaning of this invention, it is meant a duration exceeding 1 year, preferably exceeding 2 years, more preferably exceeding 3 years. In this invention, if an emulsion meets any of tests A to D
Words or terms not specifically defined shall have the ordinary meaning as known to those skilled in the art of pharmaceutical formulations, emulsion chemistry or opthalmology The term “artificial tears” as used herein means non-irritating lubricant eye drops used to treat the dryness and ...