Driving is a central part of most adults’ lives. It may not always be a pleasure but the sheer convenience of being able to go where you want when you want means that few of us would give up driving voluntarily.

However, some medical conditions prevent or impose restrictions on patients’ driving. The Driver and Vehicle Licensing Agency (DVLA) website directs the following unequivocal statement to drivers:

‘If you have a medical condition which has become worse since your licence was issued, or you develop a new medical condition, you must write and inform the Drivers Medical Unit of the nature of your condition, as it may affect your fitness to drive. Failure to do so is a criminal offence punishable by a fine of up to £1000.