What is blue light? The blue light wave is one of the shortest and most energetic wavelengths, which is between about 380nm and 500nm in the visible light spectrum. Natural blue light comes from the sun. Our body uses blue sunlight to regulate our natural daily rhythm (sleep and wake cycles), increase alertness, increase reaction times, increase mood and increase well-being. Artificial blue light sources include digital screens such as TVs, computers, smartphones as well as fluorescent lamps and LEDs. Why should we protect our eyes from blue light? Since blue light waves are one of the shortest and strongest energy wavelengths in the visible light spectrum, they can penetrate the lens and directly reach the retina. Our eyes do not have enough natural filters to protect against blue light. Prolonged exposure to blue light from digital screens or fluorescent lamps can lead to eye fatigue, dry eyes, headaches, sleep disturbances and even photochemical damage to the retina, increasing the risk of macular degeneration over time. sevenplus Blue light blocking reading glasses for you. - Anti-eyestarin. - Reduces headaches. - Sleep better. Amazing size. The reading glasses are incredibly small and lightweight for wide use. Foldable design. Makes the reading glasses easy to fold and compact to store. Unparalleled quality. Our reading glasses are designed and made of high quality material. Note: Please allow 0-1cm error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual colour of the item. Thank you for your understanding. Package includes: 2 x Foldable Blue Light Blocking Reading Glasses 2 x Magnetic Carry Bag 2 x Cleaning Cloths
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