Recommend: Dangerous blue light in the digital age.

Blue Light: Dangers of the Digital Age

Staring computer screen or smartphone in long periods is dangerous to your eye due to Blue Light from the screen.

Blue light has a short wavelength but high energy. It originates from sunlight, fluorescent lamps, smartphones, LED screens, and computers.

Normally, blue light from a computer or smartphone has very little amount. However, if your eyes are too close to the screen for a long duration, it can cause eye pain, dry eyes, blurry vision, or tears. In the long term, blue light causes age-related macular degeneration, which is the major cause of blindness.

Blue light not only affects your eyes but also hormones. It inhibits melatonin which is important for sleep. Therefore, you may have insomnia if you use a computer or smartphone before going to bed.

Methods to prevent eye danger from blue light are as follows:

1. Reduce time using a computer or smartphone: try to rest your eyes frequently, and avoid using screens in dim light.
2. Use the filter or blue light filter: such as a screen protector or blue-light blocking glasses every time while using a mobile phone or computer.

Although this equipment cannot absolutely filtrate blue light, it can reduce the affects to your eyes and improve comfort while staring at screen for long periods.