SLEEP ZM JOURNAL
Sleep ZM Blog – Eye Health News
Practical guides, research-backed insights, and everyday tips for managing light, screens, sleep, and eye comfort.
Do Blue Light Glasses Make You Tired?
Short answer: no, blue light glasses don't make you tired. They filter light; they don't contain anything that makes you sleepy. If you f...
READ ARTICLE →
How Much Are Blue Light Glasses? $5 to $200 Explained
Short answer: blue light glasses cost anywhere from about $5 to over $200. Non-prescription pairs from a specialist brand usually cost $3...
READ ARTICLE →
Can Blue Light Glasses Be Clear? Let’s Find Out
Short answer: yes. Blue light glasses can be completely clear. A clear lens filters a smaller share of blue light than a tinted one, so c...
READ ARTICLE →
Do Blue Light Glasses Change Color? How Vision Shifts
Short answer: clear blue light glasses barely change color. Tinted ones do, and the stronger the tint, the bigger the shift. Yellow lense...
READ ARTICLE →
Blue Light Glasses Vs Regular Glasses
Short answer: regular glasses correct your vision; blue light glasses filter part of the light reaching your eyes. They do different jobs...
READ ARTICLE →
Blue Light Glasses For Concussion: What You Must Know
Short answer: blue light glasses don't treat a concussion, but a tinted lens can make light easier to put up with while you recover. In t...
READ ARTICLE →
Blue Light Glasses for Night Driving: Tints to Avoid
Night driving can be hard work for your eyes. Oncoming LED headlights, halos around streetlights and a dark road make it one of the most ...
READ ARTICLE →
Blue Light Glasses for Reading Books: When They Help
Short answer: you can, but for paper books there's little point. A printed page doesn't give off light, it only reflects the light in the...
READ ARTICLE →
Blue Light Glasses Side Effects: What You Should Know
Short answer: blue light glasses are safe and have few side effects. The 2023 Cochrane review found only occasional minor ones, such as h...
READ ARTICLE →
Do Blue Light Glasses Affect Your Vision?
Short answer: no, blue light glasses won't harm your eyesight or change your prescription. What they do change is how things look while y...
READ ARTICLE →
How to Tell If Blue Light Glasses Are Real: 7 Tests
Short answer: real blue light glasses come with a measured blocking percentage and the wavelength range it applies to, and what you see m...
READ ARTICLE →
Most Effective Blue Light Glasses: Which Tint Wins?
Short answer: the most effective blue light glasses are the ones matched to when you wear them. For the evening, when cutting blue light ...
READ ARTICLE →
FREE FOR SLEEP ZM READERS
The Healthy Light Living Handbook
Jeff and Dot Smith's guide to living with light: which lens suits which hour, how light moves your body clock, and what to change before you reach for a different pair of glasses. Free, sent straight to your inbox.
No spam. Unsubscribe anytime. Your handbook arrives in your inbox within minutes.