Night driving has always brought its own specific challenges, mostly relating to visibility.
But in recent months and years, we’ve heard so much about the issues around ‘headlight glare’ from modern LED headlights, which is proving to be a significant issue when driving in the dark in addition to fatigue and changing light conditions.
In fact, new research indicates that headlight glare is now affecting driver behaviour, with a growing number choosing to avoid driving at night altogether. For those who continue to drive in low-light conditions, many are turning to so-called “anti-dazzle” driving glasses as a potential solution.
But now there are concerns that those driving glasses might not even be effective…
Do Driving Glasses Help Or Impair Road Safety For Drivers?
Six pairs of anti-dazzle glasses were put through their paces on a 12-mile route covering a mix of urban and rural roads, both lit and unlit and the glasses ranged from clip-on lenses to full pairs, including options with yellow tints, polarised coatings and photochromic technology.
However, the results weren’t great…
Five of the six pairs tested made no meaningful difference to glare from oncoming headlights.
In some cases, visibility was arguably no better than driving without them and only one pair showed a noticeable reduction in brightness, particularly on darker stretches of road.
When drivers experience discomfort or reduced confidence at night, it’s natural to look for a quick fix. Glasses that promise to reduce glare are relatively inexpensive, easy to use and widely marketed as a simple solution to a growing problem, but if it turns out they’re not working… that false confidence could be a road safety issue.
If a driver believes their vision has been improved, but in reality it hasn’t, their behaviour may not adjust accordingly.
We’ve seen similar patterns elsewhere in road safety where issues develop gradually or sit just below the surface often go unnoticed until they reach a tipping point. In this case, it’s not a mechanical fault or a worn component, but a limitation in what a driver can see and react to.
The Dangers Of Night Driving
Night-time driving already brings elevated risk as reaction times can be slower, hazards are harder to detect and fatigue can build more quickly over longer journeys.
When you factor in inconsistent visibility, the margin for error narrows further and it’s clear that’s a real concern.
So, what should drivers be doing instead?
Regular eye tests remain one of the most effective ways to ensure drivers are operating with the best possible vision and for those who require prescription lenses, anti-reflective coatings can help reduce glare more reliably than off-the-shelf alternatives.
Beyond that, basic vehicle checks still play a role – clean windscreens, correctly aligned headlights and well-maintained wiper blades all contribute to clearer visibility in low-light conditions.
For fleet operators, it’s a reminder that not all safety interventions deliver the same results…
Encouraging drivers to report visibility issues, reinforcing good driving habits in darker conditions and maintaining clear oversight of risk factors across the fleet all form part of a more effective approach.
And for fleet owners, the importance of staying on top of your obligations through our Compliance Monitor has never been more important, while building an overview of your entire fleet with Fleet Monitor can ensure you’re always aware of what’s going on with your drivers and vehicles.
