My husband came to bed one night with these orange tinted safety glasses as he scrolled thru You Tube. Of course this led to me laughing at him and then to him sharing with me his research. So apparently too much blue light which is what is artificially illuminated from most of our lamps and devices can inhibit melatonin production so your body doesn’t know when it’s bedtime. Yellow to orange tinted blue light-blocking glasses and lens filters help block these blue lights and can help a person fall asleep on time despite late night screen usage. There’s a study out of the University of Houston College of Optometry that showed that wearing them for even an hour before bedtime had a positive effect in their study showing people whom wore the glasses slept 24 minutes longer and had 58% higher melatonin levels during the study than before they started wearing the glasses.
I have since started recommending the glasses to those clients having difficulty sleeping. I have had all positive feedback which is unusual with product recommendations. This past month I have started keeping a supply in the office to sell at a minimal price. Generic safety glasses – $3 and fancier more aesthetically pleasing frames for $15.
Resources: https://www.uh.edu/news-events/stories/2017/july/07242017bluelight.php