Rohto Dry-Aid with Liquid shield technology is uniquely formulated to help restore moisture to the tear film by working on all three layers to mimic a natural, healthy tear. Non-blurring and fast-acting, Rohto Dry-Aid provides soothing comfort that lasts up to 12 hours. Highly rated for it refreshing feeling, Rohto Dry-Aid is clinically shown to improve all key symptoms of dry eye including dryness, irritation, grittiness, burning, and stinging.