Vismed Multi is identical with the classic version of Vismed, but is presented in a new and patented multi-dosage system. This practical bottle is simple to use and can be kept for 3 months after opening. The innovative dosage system ensures that Vismed Multi does not require any preservatives. This makes Vismed Multi economical to use without losing the benefits of Vismed. Vismed Multi contains 10ml of preservative-free Vismed which is the equivalent to 30 monodose units - around 200 drops of 0.18% sodium hyaluronate. The bottle will remain sterile for up to 3 months after first use. Vismed Multi can be used up to three months after first use, and it can be used with all types of contact lenses.