When should you wear blue light blocking glasses?
Written by
Chen Jialiang
Reviewed by
Prof. William Dalton, Ph.D.Awareness of when to utilize blue light blocking glasses can enhance their efficacy throughout your day. Different lens types target specific amounts of exposure to screens. Your daytime hours spent at the computer require different protection from evening rest in front of the television or other screen. Wearing the most suitable lenses at the most appropriate times will keep your eyes comfortable and promote restful sleep.
Daytime Computer Work
- Clear or light amber lenses block 440nm frequencies
- Reduces glare during spreadsheets and document editing
- Prevents mid-afternoon eye fatigue for office workers
Evening Entertainment
- Medium amber lenses filter 520nm TV and tablet light
- Counters artificial lighting during dinner relaxation
- Maintains natural melatonin levels before bedtime
Pre-Bed Preparation
- Red lenses block 570nm for maximum protection
- Worn starting two hours before planned sleep
- Creates optimal darkness signaling for circadian rhythm
Your circadian cycle necessitates continually available signals of light. Daytime contact lenses allow beneficial blue light that promotes wakefulness and alertness. Evening protection keeps melatonin from being disturbed by screens. Pre-sleep red lenses simulate signals of natural darkness. I switch my lenses at 5 pm and 9 pm like clockwork, every single day.
Special consideration should be given to gamers who participate in late-night gaming sessions. Extended gaming requires amber-tinted lenses that block 520nm. Additionally, be sure to take a 20-minute break from screens every hour. This will prevent delayed sleep onset post-gaming. My clients experience improved sleep while maintaining this structure.
Read the full article: 10 Best Blue Blocking Glasses Unveiled
