Your device's screen will adjust to the time of day using the Twilight app. After sunset, it filters the blue spectrum on your phone or tablet and shields your eyes with a gentle, pleasant red filter.
Blue Light Filters, Are they any good and how to use them
Is blue light damaging and are filters worth it? - Macular Society
What Can You Do Against Blue Light? - Cao Thang Eye Hospital
Blue Light: What It Is and How It Affects Sleep
Blue Light: What Is It, and How Does It Affect Our Eyes?
Are blue light glasses effective? - Mayo Clinic Health System
How to Use the f.lux Blue Light Filter App – THL SLEEP
If the blue light filter on my mobile gives an orange tint to the screen, why doesn't my lens, which is supposed to have blue light filter, affect visible light's colour?
What Is a Blue Light Filter and How Do I Deal With These Lights? What Is a Blue Light Filter and How Do I Deal With These Lights?
Lighting & Blue Light Filter Advice For Eyes
Blue Light Can Impact Your Sleep. Can Blue-Light-Blocking Glasses Help? - CNET
Targus Antimicrobial Blue Light Filter Screen Protector for 24 Screens - For 24 Widescreen LCD Monitor - 16:9 - ABL24W9GL
Blue Light Blocking Lenses - LA EYE CENTER & CLINIC OPTOMETRY