Bright lights pose glaringly obvious risk to drivers, says AA
The organisation says that glare from low sun or headlights causes more injury accidents than poor visibility due to rain, sleet, snow or fog.
Analysis of the government's latest accident figures shows that impaired vision due to dazzle was a cause of 4,353 reported injury crashes last year.
AA AutoWindshields operations director Neil Needham said: 'With the sun low in the sky by day, and oncoming headlights a constant sight during the longer nights, winter is peak season for dazzle. The result can be injury or death.
'So it is more important than ever to keep your windscreen clean, inside and out, and look out for any scratches, abrasions or chips that can worsen the effects of glare.'
Some glare is unavoidable due to low sun and the need to travel at fixed times.
The AA advises drivers to keep a good quality pair of sunglasses within easy reach and a rubber blade (ice scraper) to clear condensation from side windows.
Drivers who are temporarily dazzled are advised to slow down accordingly.