Red Is Shown to Create a Surprising Amount of Glare, Raising Questions About Current Standards

Red is shown to create a surprising amount of glare, raising questions about current standards

An EPFL study shows red light, like blue, causes stronger glare than white, challenging the century-old and globally used function that describes how the human eye responds to different light wavelengths. The findings have ...

Red is shown to create a surprising amount of glare

14.10.2025 - An EPFL study shows red light, like blue, causes stronger glare than white, challenging the century-old and globally used function that describes how the human eye responds to different light wavelengths. The findings have implications for standards and research, as well as for the comfort of building occupants.