TEMPO.CO, Jakarta – Blue light emitted by laptop or smartphone screens is of concern due to its impact on eye health and sleep quality. What exactly is this blue light, and how can we manage it to minimize the risks?
Blue light is part of the visible light spectrum and is often encountered in natural lighting, especially in the morning. However, electronic screens such as laptops, tablets and cellphones use LED technology which can produce more intense blue light.
Quoted from WebMD, blue light has a shorter wavelength and higher energy than other colors. Several studies have shown a link between eye damage and shortwave blue light with wavelengths between 415 and 455 nanometers. Most of the light from LEDs used in smartphones, TVs and tablets has a wavelength between 400 and 490 nanometers.
The strong blue light from screens can cause eye fatigue, strain, and can even contribute to dry eye syndrome. Long-term exposure to blue light can also increase the risk of vision problems, especially in conditions such as macular degeneration.
One of the main impacts of blue light exposure, especially at night, is its effect on the body’s circadian rhythm or biological clock. Blue light can inhibit the production of melatonin, a hormone that regulates the sleep cycle. This can result in difficulty falling asleep and other sleep disorders.
How to Minimize Blue Light
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Quoted from Healthline, some modern devices have a night mode option that reduces the level of blue light on the screen at night. Activate this mode to reduce its impact on sleep. During long periods of use, give your eyes a break by doing focus exercises on distant objects and taking a moment to reflect.
Using glasses with an anti-blue light coating can help reduce direct blue light exposure to the eyes, reducing eye strain. Adjust the screen brightness and contrast settings to make it more comfortable for the eyes. Some apps can help reduce the level of blue light on the screen and automatically adjust the screen color according to the time of day.
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2024-01-03 13:07:00
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