Short, high-energy blue wavelengths are everywhere—the sun emits blue light, and so do your favourite gadgets. You may not be aware of it, but we are always surrounded by blue light every day.
Studies show that prolonged exposure to artificial light causes vision problems and adverse effects on our overall health. Consider the time you spend hooked on your screens, smartphones, and laptops.
Is blue light bad?
Exposure to blue-light is not all harmful. In fact, it’s what makes the sky look blue. In its natural form, light helps regulate our bodies’ sleep and wake cycles. It’s what makes us alert and active during the day. It also boosts our mood, memory, and energy levels.
How does blue – light affect our brains?
Nature has magnificently displayed how it can work to our advantage. During the day, the sun emits blue light to keep us up and awake. At night, its absence signals our brain to rest. The problem with artificial sources of light is that they mess up with our brains and disrupt our sleep-wake cycle.
When we watch TV late at night or bring our phones to bed, the blue light from these gadgets suppresses the release of “sleep hormones” or melatonin in our brains. Because of this, we have problems falling asleep; and when we finally do, it’s not good, well-rested sleep. Because sleep is a crucial factor in our overall well-being, this leads to more severe health problems.
How does blue light affect our eyes?
On the spectrum, blue-light sits just one level below UV radiation. It has the highest intensity among visible lights, so prolonged exposure to it is harmful to our vision. While the sun emits both blue and UV lights, we don’t stare at the sun’s glare as much as we do at our electronic screens.
Unfortunately, our eyes do not have sufficient filters against these harsh rays. Considering that we spend so much of our waking hours using these devices, it’s no wonder we get headaches and eyestrain after a long day at work. If we’re not careful, continued exposure to blue light could lead to retinal damage and permanent loss of vision.
How do we cut back on blue light?
Experts suggest limiting our screentime, especially one to two hours before going to bed. At work, you can take breaks in between long hours of being in front of the computer. You can also opt for warmer lighting in your homes.
➡ Additionally protect your eyes from negative light and display any damage!
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