Contribution
It is an absolute pleasure to serve under your chairmanship, Mrs Harris. I thank the hon. Member for Crawley (Peter Lamb) for bringing this debate to Westminster Hall. I declare that I have personal experience with this issue as a practising NHS optometrist, so I can say with some clarity that it is of great importance and concern, with potentially significant consequences. Many of my patients have told me of their utter despair when they want to drive at night. Some only take the keys out if it is a real emergency, while others have abandoned it altogether, which feeds into the narrative that elderly people in particular will not go shopping or go to the pharmacist to pick up medication. That can result in loneliness and other problems.
There are also those who continue to drive despite knowing that night driving is really difficult for them. That becomes a matter of life and death, as some of the statistics bear out. As an optometrist, I have only anecdotal evidence, but although excellent research has been done by the College of Optometrists, the Association Of Optometrists and the RAC, among others, it does not take an expert to know the link between eyesight and safety for everyone who uses the road.
I want to focus on two intertwined challenges: the impact of modern car lighting, and the lack of research and subsequent legislation around it, and the failure of our system to ensure that drivers meet basic vision standards.
Modern vehicles are brighter than ever. LED and xenon technologies have replaced many older halogen bulbs. They are much brighter and more efficient, and provide better clarity on the road for the driver, but unfortunately the increased brightness comes at a cost, which is a rise in glare and dazzle for other road users. The RAC, drawing on Government collision statistics, reported that since 2013, an average of 280 crashes a year in Britain have involved dazzling headlights as a contributing factor. Six of those crashes a year involve a loss of life. Campaigners believe that the real figures could be a lot higher.
The shift from halogen to LED, combined with higher headlight positioning because of SUV cars, is part of the problem. Experts at the light and health research centre at Mount Sinai hospital in New York have identified three factors driving the problems: the rise of taller vehicles, incorrect alignment of lights and the blue light of modern LED bulbs. Due to their shorter wavelength, they can potentially scatter more light in the eyes, and are more uncomfortable than other light forms. No research, as far as I am aware—there have been some anecdotal studies and very small-scale studies, but nothing conclusive—confirms that they help night driving.
The RAC also found that it takes 68% of drivers—this is really worrying—up to five seconds to recover after they have been dazzled, and more than 11% say that it takes six seconds or more. That is the time it takes to travel 160 metres at 60 miles per hour, without any clear vision. That is worse for anyone who has other eye health conditions, such as corneal opacity at the front of the eyes, cataracts or macular degeneration problems, but also a dirty windscreen or glasses lenses.
The greater, and quieter, threat is the number of drivers who already have poor or unsafe vision and continue to drive anyway. According to statistics by Mortar in October 2024, one in seven people knows of a relative, friend or co-worker who they believe is breaking the law by driving despite poor eyesight. Almost 30% of motorists admitted they would continue to drive even if they knew their vision was below the legal standards. More than a quarter said they are worried about someone they know who drives despite having poor vision.
These figures are deeply concerning, and reveal that our current, self-referral system is failing and many people either do not know their vision has declined or choose to ignore it. Earlier this year, a coroner in Lancashire issued a prevention of future death report following a fatal crash caused by undiagnosed sight loss. We need to change the legislation and have more research done on lighting.