Hycosan Extra (0.2% Sodium Hyaluronate) is recommended for Severe Dry Eye. __Features:__ - Hycosan Extra includes a natural tear lubricant (0.2% Sodium Hyaluronate) - Hycosan Extra provides relief for severe eye irritation, it is a highly viscous solution, with little or no blurring of vision - Hycosan Extra offers patients a Preservative Free drop which ensure contact lens compatibility - Hycosan Extra is delivered via the patented COMOD system. This unique device dispenses a single calibrated drop with each click, and as such, it offers incredible value for money when compared to more traditional Preservative Free options - Hycosan Extra can be used for 6 months from first opening!