- 4 updates
Police have been out and about today asking motorists to stop and read the registration plate of a vehicle parked 20.5 metres away - the legal standard set by the DVLA.
They are warning that drivers who fail this roadside eyesight test could have their licence revoked instantly.
Many sailed through the spot-check - but for others it was a wake-up call, as our correspondent Carl Edwards reports.
South Wales Police are warning that drivers who fail a roadside eyesight test could have their licence revoked instantly.
Police are stopping motorists and asking them to read the registration plate of a vehicle parked 20.5 metres away - the legal standard set by the DVLA.
Previously, drivers who failed an eyesight test were free to return to their vehicles and drive away until a slow postal-based licence revocation process was complete.
But improved technology means a licence removal notice can now potentially be issued within minutes, making it an offence for that driver to get straight back behind the wheel.
The motorcyclist pictured in our report above passed the sight test - but police say many are still taking risks through driving with poor vision.
Our correspondent Carl Edwards has been out and about this morning watching some roadside eye tests being undertaken.
Drivers will be stopped by officers and asked to read the number plate of a vehicle 20.5 metres away in four operations across South Wales.
That task is part of practical driving tests in line with the DVLA's legal standard.
Now police can use new handheld devices at the roadside to report offending drivers to the DVLA and a licence removal notice can potentially be emailed straight back within minutes, making it an offence for them to get back behind the wheel.
South Wales Police says this will eliminate a "window of risk" that has existed, as drivers were previously free to drive away and wait until their licence was revoked by post.
The force says that highlighting the issue in public is even more important.
From today, drivers in Wales could have their licences revoked immediately if they fail a roadside eye test.
South Wales Police officers are stopping motorists to carry out on-the-spot eye tests for the first time since tough new rules were introduced, which can speed up the process of revoking driving licences.