I-DROP® PUR is a preservative-free, contact lens-compatible artificial tear ideal for patients with mild to moderate dry eye disease. Contains 0.18 % Viscoadaptive hyaluronan Benefits 0.18 % Viscoadaptive Hyaluronan Preservative-free Immediate and lasting relief of dry eye symptoms Superior comfort Non-blurring upon application Innovative bottle with one-way valve delivers one dosed drop at a time (no wasted product); the anti-bacterial tip ensures sterile delivery of each drop More Details The viscoadaptive property of I-DROP® PUR contains 0.18% HA with added glycerin. This formulation allows the drops to move back and forth across the surface of the eye with every blink, allowing for a longer residence time. It offers a higher hydration capability and stabilizes the lipid layer (oily layer) of the tear film, resulting in superior comfort to the patient. Our sophisticated one-way valve dispenses one sterile, dosed drop at a time (no wasted product) and eliminates any chance of the product re-entering the bottle. Our antibacterial tip ensures safe, sterile delivery of each drop. When the drop is dispersed, there is a distinctive blue tip that facilitates “aiming” by the patient.