Warblue ad: One brand, four lenses, one job

"These glasses change the color of my computer screen, and that helped." Not every tint does the same job, though. Clear lenses are subtle enough for all day, but only block a small share of blue light. Yellow steps it up for daytime screen work. Orange goes further for the afternoon slump. Red is built for night, when the eyes need the most protection from screens telling the brain it is still daytime. Four lenses, four moments of the day, each one blocking a different amount of blue light.