New law for short-sighted driversRolf Vennenbernd/DPA

Police will get new powers to revoke the licenses of short-sighted drivers who are involved in accidents or caught driving dangerously.

The new law has been streamlined after ministers received a 45,000-signature petition to implement "Cassie's law".

This was in memory of Cassie McCord, a 16-year old girl who was killed by an 87-year old driver who refused to surrender his licence despite failing an on the spot police eye test three days earlier when he drove into the exit of a petrol station.

Police pleaded with Colin Horsfall to surrender his licence but he ignored them and the result was Cassie's death when he swerved onto the pavement and knocked her down in February 2012.

The police could not take immediate action because the law dictated it was the job of the DVLA, therefore the entire process had to be done by post, which can take around four days.

Under the new law, police officers will be able to request to revoke a licence at the roadside using the latest smartphone technology.

In turn, the DVLA would email back a formal revocation notice to the police station, which would be printed out and could be delivered to the offending driver on the same day.

Officers will be expected to intervene when a motorist's driving is causing concern. They would be expected to carry out an eyesight test on the spot, checking the driver can read a number plate from 20 metres.

The news comes after a study by the Department for Transport revealed that some 6,000 British motorists were banned in 2011 due to poor eyesight – a 10 per cent increase on the previous year.

A separate study by Specsavers discovered that almost half of the UK's population were in danger of failing to meet the required eyesight standards to be able to drive.