For dry eyes VISMED GEL Multi eye drops contain 0.3% hyaluronic acid. Hyaluronic acid is a naturally occurring substance found in the body, including the tear film. It helps retain moisture and transport nutrients. The long-lasting artificial tear solution is also free of preservatives and therefore very compatible with all contact lenses. Common symptoms include dry, red, and irritated eyes, as well as increased tear production. Those affected also frequently suffer from unpleasant itching or burning of the eyes. Common causes of dry eyes include: hormonal changes Diseases such as diabetes mellitus, dermatological and rheumatic diseases, as well as radiation therapy to the head. Environmental factors, such as smoke, wind, dust and cold Screen work, also known as eye office syndrome