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2. Are blue light glasses really worth it? A new analysis says ...

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   The researchers hope to conduct further research on the effects of blue light glasses on sleep, eye health, and more, Dr. Sumeer Singh, an author on the study from the Downie Laboratory, said in ...

3. Biological effects of high-energy visible light - Wikipedia

   en.wikipedia.org/wiki/Biological_effects_of_high...

   Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.

4. Non-24-hour sleep–wake disorder - Wikipedia

   en.wikipedia.org/wiki/Non-24-hour_sleep–wake...

   This disorder can have symptomatic periods, where "the time of high sleep propensity gradually shifts, such that patients experience daytime hypersomnolence and nighttime insomnia". [ 2 ] In sighted people, the diagnosis is typically made based on a history of persistently delayed sleep onset that follows a non-24-hour pattern.

5. Light therapy - Wikipedia

   en.wikipedia.org/wiki/Light_therapy

   Patients on certain drugs such as methotrexate or chloroquine should use caution with light therapy as there is a chance that these drugs could cause porphyria. [citation needed] Side effects of light therapy for sleep phase disorders include jumpiness or jitteriness, headache, eye irritation and nausea. [80]

6. Blue light-blocking glasses don't protect eyes or improve ...

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   A new review finds that the popular lenses don't help with eye strain, alertness or sleep. Blue light-blocking glasses don't protect eyes or improve sleep, study finds Skip to main content

7. Why Blue Light Glasses May End Up Preventing Disrupted Sleep

   www.aol.com/lifestyle/why-blue-light-glasses-may...

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