Similasan Dry Eye Relief - A common discomfort - reading, stress, contact lens wear, and staring at the screen all day can dry out your eyes. Traditional over-the-counter drops use chemicals to mask symptoms which may actually worsen the symptoms if used more than directed. Similasan Dry Eye Relief works differently, by using natural botanical extracts to stimulate the body's natural defenses and target the root cause, so you can feel better without harsh chemicals.