Ocu-Dry 0.3% contains minerals that are present in human tear and a combination of hyaluronic acid (0.3%) and glycerin. The amount of glycerin and accentuates the lubrication power, joining the action of sodium hyaluronate. It is indicated for anyone suffering from moderate to severe dry eye and provides prolonged relief from their symptoms. It is the most hypotonic. 20x0.4ml vials.