Frequently Asked Questions

Commonly asked questions about the condition of Dry Eyes and about the VISMED® range of products.

Our How to get VISMED page will answer your questions; alternatively just click on any of the "Buy Online" buttons on this website to order online.

VISMED® single dose vials, VISMED® MULTI, VISMED® GEL and VISMED® GEL MULTI are available on NHS prescription. Please ask your GP. You can print off this leaflet and take it to your GP for discussion and consideration.

VISMED® Single Dose, VISMED® MULTI (both old and new versions), VISMED® GEL and VISMED® GEL MULTI are preservative free. Our "Preservative-free Eye Drops" page has more information.

Both the new 'Just squeeze' bottle and the older version of VISMED® MULTI, as well as the recently launched VISMED® GEL MULTI, will remain sterile for up to 3 months after first use.

VISMED® eye drops are suitable for all types of contact lenses, both hard and soft.

Please refer to the Vismed Multi product page.

The difference is the concentration of sodium hyaluronate. VISMED® contains 0.18%, VISMED® GEL has a higher concentration of 0.3% for a longer lasting effect.

Please note that TRB Chemedica cannot give personal medical advice. If you have been diagnosed with Dry Eye by your physician or ophthalmologist, and advised to use lubricating eye drops, then the Vismed range of products may be used safely to alleviate the dry, gritty sensations associated with Dry Eye. Because Vismed and Vismed Gel (in single vials or multi-dose dispensers) are physiologic and preservative free, there are no potential side effects associated with long-term use of Vismed.
You should consult with  your physician or ophthalmologist to ensure your condition has not changed over extended periods.

There is no difference in the concentration of sodium hyaluronate, both products contain 0.18%.

VISMED® patented formulations contain sufficient sodium citrate as chelator to maintain the calcium ions in solution, thus preventing the precipitation of calcium phosphate and retention in the cornea.

The electrolytes in VISMED® are similar to those in natural tears and support the nourishment of the cornea. 

"Sjögren's Syndrome" is a recognised chronic autoimmune disease. "Autoimmune" means that the body's immune system attacks tissues and substances normally present in the body. In "Sjögren's Syndrome" the white blood cells attack those glands in the body which produce moisture, including tear glands. The result is an inability to produce tears in the eyes, thus resulting in painful dry and itchy eyes. For further information and support please visit the website of the British Sjögren's Syndrome Association.