The Billie style ngithfall amber lens glasses block blue light.
NightFall Blue Blocking Glasses feature our signature blue AND green light blocking red lens. These are the most optimal blue light blocking glasses available for optimising sleep.
Our optical grade red lenses block 100% of blue and green light from 400nm to 550nm. This is the exact range that has been shown in clinical trials to lower melatonin and negatively impact our sleep.
They can improve mental health, sleep, focus and facial muscle pains. 
These are for evening use when blue light protection with clear vision as it gets darker is also needed. 
 
Dimensions:
Lens - 49x43mm
Frame - 140x135x43mm
Bridge - 15mm