Question to the Department for Transport:

To ask the Secretary of State for Transport, pursuant to the Answer of 16 January to Question 120201 on Motor Vehicles: Lighting, if he will make a comparative assessment of the impact of the brightness of LED headlights and conventional motor vehicle headlights on people with vision difficulties, including incipient cataracts.

The brightness of LED headlamps is subject to the same provisions as other vehicle lighting technologies which must strike a balance between illuminating the road ahead and preventing unnecessary glare. The 2018 research previously referenced in Question 120201 found no evidence of increased light sensitivity risk from LED lamps when compared with other light sources and, due to the absence of ultraviolet radiation, suggested that it might help reduce the risk of light sensitivity in some cases.