Drivers have been warned to have regular eye checks by a doctor.
Writing in the Times, Dr Mark Porter noted that motorists are likely to have their eyesight tested just twice throughout their driving lives; when taking their test and at the age of 70.
"Twice in 53 years is simply not enough," he stated.
Dr Porter also expressed his belief that not wearing contact lenses or glasses where necessary while driving should be considered equal to drink-driving.
"It is just as stupid and at least as dangerous," he wrote.
Dr Porter also noted that eye tests may detect problems such as glaucoma or brain tumours.
by Martin Burns