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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 ...
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
Adding a blue-light filter to your eyeglasses may not ease eye strain from computer work, protect the retina or help with sleep at night, according to a new review of existing research.
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.
More screen-time has been linked with shorter sleep duration, decreased sleep efficiency, and longer sleep onset delay. [10] When using any screen before bedtime, the blue light emitted disrupts the body's natural melatonin hormone production. [16] Melatonin is produced by the brain's pineal gland and controls the body's internal clock. [17]
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