The 20-second television advert – which launched on September 17 – is broadcasting until October 14 on ITV in the Midlands.

It highlights Thea Pharmaceuticals’ claim that Thealoz Duo is “clinically proven to relieve symptoms, without the need for preservatives”, as well as the most common symptoms of dry eye and the benefits of preservative-free solutions.

The manufacturer has also launched a new website to help patients check their eye symptoms.

One 10ml bottle of Thealoz Duo retails at £13.99.