What percentage of blue light do the Swannies Day Glasses block?

Swannies Day Glasses

Day Swannies block 98% of blue light at 400 nanometers, graduating to 45% at 450nm. This is considered the most harmful part of the blue light spectrum. Day Swannies also block between 21-45% of blue light between 450-500 nanometers. This allows a natural level of beneficial blue light to get through, while still protecting your eyes from over-exposure to harmful blue light.

Day Swannies block significantly more blue light than most clear-lens blue blockers on the market, which usually only block blue light up to 420nm.

View our Day Swannies Independent Transmission Report.