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.
Blue Light Glasses Yellow Tint: What It Does and Doesn't
Short answer: a yellow tint means the lens is filtering a moderate share of blue light while keeping most other light. Our yellow ScreenA...
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Blue Light Glasses After Lasik: What You Need to Know
Short answer: you can usually wear non-prescription blue light glasses after LASIK once your surgeon says it's fine to wear glasses again...
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Blue Light Glasses Before Bed: How Long to Wear Them
Short answer: put blue light glasses on two to three hours before bed and keep them on until lights out. The lens matters as much as the ...
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5 Best Blue Light Blocking Glasses For Sleep
Short answer: the best blue light blocking glasses for sleep have an orange or red lens that filters almost all blue light, not a clear o...
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Do Blue Light Glasses Help With Migraines?
Short answer: they may help some people, mainly if light is one of your migraine triggers or makes attacks worse. The evidence is still s...
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Do Blue Light Glasses Hurt Your Eyes At First?
Short answer: they shouldn't. Non-prescription blue light glasses don't change how your eyes focus, so there's nothing for your eyes to "...
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Do Blue Light Glasses Block UV Rays? Not All of Them
Short answer: some do, some don't. Blue light and UV are different parts of the spectrum, and filtering one doesn't automatically filter ...
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Blue Light Headaches: Why They Happen and How to Stop
Short answer: screen headaches are real, but blue light usually isn't the cause. Most come from how we use screens: focusing up close for...
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How Long Do Blue Light Glasses Last? Signs to Replace
Short answer: most blue light glasses last one to three years with daily use. How long yours last depends mainly on how the blue light fi...
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Blue Light Glasses Orange Lens: How Much Do They Block?
Short answer: a good orange lens blocks almost all blue light. Our SleepAid orange lens blocks 99% of light between 380 and 550nm, indepe...
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When to Use Blue Light Glasses: Best Times to Wear Them
Short answer: the best time to use blue light glasses is in the evening, for the last two to three hours before bed, with an orange or re...
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Do Blue Light Glasses Look Different? Tinted vs Clear
Short answer: it depends on the lens. Clear blue light glasses look almost exactly like regular glasses; at some angles you may catch a f...
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