VISMED/VISMED GEL contains sodium hyaluronate, a natural polymer, which is also present in the structures of the human eye. The particular physical characĀteristics of sodium hyaluronate confer to VISMED/VISMED GEL its viscoelastic and water retaining properties. VISMED/VISMED GEL provides a stable coating on the surface of the eye which is only slowly eliminated by blinking. Therefore VISMED/VISMED GEL combines long lasting relief with maximum comfort. VISMED/VISMED GEL is well tolerated due to its unique composition. VISMED/VISMED GEL is free from preservatives.