Research has found that 5 million motorists have eyesight which is so bad they are a hazard on the road and to other motorists.
The current UK rules regarding eyesight focus on the number plate test, which involves motorists being able to read a car number plate from 20.5m (67 feet) away in good daylight . For the new-style number plates, this distance is 20m.
According to a number of surveys conducted over the last few years, the UK's drivers are not keeping up to speed with changes in their eyesight. It's reported that a third of drivers have such bad eyesight that they could be putting themselves and other road users in danger.
A shocking 13 million UK drivers are not having their eyes tested as often as they should and so there are changes to their vision - resulting in them being unable to read road signs properly.
A survey taken showed that 1 in 3 people who failed a basic eye test were drivers - with 33% of the overall sample failing to read the chart successfully said that they had suspected that they were unable to see to the necessary standard, but had done nothing about it.
52% of motorists have admitted to not having their eyesight tested in the past 2 years, while a surprising 20% had not had an eye test within the last 5 years.