"I am in my 30s and sometimes I can't tell if [other vehicles'] main beam is on or off and once they have passed." Emily McGuire is one of many UK motorists who have voiced concerns about being dazzled by bright headlights on modern cars. She said some lights cause such an issue she has to "look down or in the other direction… I also have to slow right down when it's really dark and I'm on a country lane." Last October, MPs debated on the brightness of car headlights, since LED lights replaced filament bulbs in cars in recent years. Statistics from the Department for Transport (DfT) show that headlight dazzle was recorded as a contributory factor in 216 collisions in 2023. Four of those collisions were fatal. Although the overall number of collisions rose very slightly compared to the previous year, it was far below the 330 recorded in 2014. But since 2024 "vision affected by dazzling headlights" is no longer listed in the DfT's published statistics as a contributory factor...