Our Yellow Daytime lenses block 100% of the blue light from 400-450nm the light that is responsible for the most eye damage and eye fatigue/strain. Our yellow lenses block 90% of the blue light in general (you don't want to completely block the blue light during the day or you will become tired) and are optimal for anyone who has a lot of screen time during the day.
Our Red Nighttime lenses block 100% of the blue and green light all the way up to 570nm. Wearing them 1 hour before going to sleep promotes the production of melatonin, the bodies natural sleep hormone. Sleep better tonight.
***Adding a second pair of glasses to your cart will auto-activate a 40% discount and shipping will become free***