GUNNAR Blue Light Filter (GBLF)
Just how Sun Protection Factor (SPF) measures protection for the skin, the GBLF scale measures lens protection for the eye. The higher the number, the better.
Amber GBLF 65 - GUNNAR's signature lens offers the optimal protection and performance.
Clear GBLF 35 - For discreet protection without the amber tint.
Sun GBLF 90 - For protection from digital screens in sunlit environments. Filters 100% UVA & UVB.
Amber Max GBLF 98 - Max protection for those who are highly sensitive or working at night.