Evaporative dry eye (EDE) disease is characterized by increased tear film evaporation.1 Polar phospholipids determine the stability of the tear film. Lipid layer disruption unveils the water/lipid interface directly to the air, leading to evaporation.2 Lipid-containing eye drops closely mimic the aqueous and lipid layers of the tear film2; hence, lipid-containing artificial tear products are vital in dry eye disease management.3 Watch this exclusive video discussing the in-depth mechanism of action of propylene glycol (PG)/hydroxypropyl-guar (HPG) based lubricant eye drops. It also talks about the benefits of lipid-based lubricant eye drops (PG/HPG formulation) that contain polar phospholipids and mineral oil as tiny nano-sized droplets.
Upon application, these eye drops form a meshwork that acts as a protective viscoelastic barrier on the surface epithelium. As a result, the…