A campaign launched in August is calling on fleet operators to ensure employees get their eyesight tested every two years to check their vision meets legal standards and they aren't putting people in danger.

The campaign by road safety charity Brake, working alongside the DVLA, insurer RSA and Specsavers, comes as research shows many drivers are failing to ensure they can see properly on every journey.

A survey of 1,000 drivers showed that a quarter of drivers (26%) haven't had a vision test in the last two years while   9% admitted to not having visited the optician for five years or more.

At the same time, many drivers who know they need glasses or lenses fail to wear them on every journey. Nearly one in ten who need glasses don't always wear them when driving. Furthermore, of those who claimed they don't need glasses or lenses, one in three (32%) haven't had their eyes checked in the last two years, so can't be certain their vision is up to scratch.

Research shows that failing to ensure your vision is good enough to drive is enormously risky, and is estimated to result in 2,900 road casualties a year, causing trauma and devastation to many victims.

Employers can help ensure good vision standards and eye health by providing employees with free or discounted eye tests, and regular advice about the importance of good eyesight to safe and responsible driving.