I’ve always needed glasses to drive and usually keep them in my van – but it’s easy to forget to take them with you when you are driving a hire van.
If you do need glasses to drive, it is important never to drive without them – doing so is an offence.
If you haven’t used glasses but suspect you might need them, take a look at the driving test eyesight requirements (basically, read a licence plate from 20m away) or take yourself along to your nearest optician for a test. It doesn’t take long.
If you do a lot of driving, then I would wholeheartedly recommend prescription sunglasses. I recently bought a pair for the first time and they are fantastic. I chose a light-grey tint and it is perfect – all the glare is gone, but colours remain natural and I can still see clearly when the sun goes in.