The DVLA warns motorists must meet the minimum eyesight requirements which were “essential for safe driving”. They have warned road users need to have “regular eye tests” to check their health and ensure they are not a possible road risk.
The DVLA has previously said just 48.5 percent of drivers were aware they needed to see this far ahead.
To avoid being caught out, the DVLA has urged road users to conduct a simple roadside check.
Doctor Wyn Parry, DVLA’s senior doctor said there was an “easy check” drivers could perform at the roadside in just seconds.
He said: “The number plate test is a simple and effective way for people to check their eyesight meets the required standards for driving.
“Eyesight can naturally deteriorate over time so anyone concerned about their eyesight should visit their optician – don’t wait for your next check-up.”
Eyesight is checked at the start of a practical driving test but these are usually taken when drivers are much younger and have healthier eyes.
Glaucoma UK said everyone should have regular eye tests “at least every two years”.