What is Blue Light and How Does it Affect Us?

May 11, 2022 PERFECTSIGHT

What exactly is blue light, and why should you protect yourself from it?

Where does blue light come from?

Blue light, a high-energy visible light, comes from both natural and artificial sources. Natural blue light can have some positive effects, including lifting mood and regulating circadian rhythm. However, it's the artificial blue light that causes worry.

1.SUNSHINE

Most of the blue light we absorb comes from the sun. This "high-energy visible light" is what makes the sky blue.

2.DIGITAL DEVICES

Our phone, tablet and laptop screens are made up of tiny LED bulbs constantly pouring out artificial blue light.

3.ARTIFICIAL LIGHTS

LED and fluorescent lighting is common place in office and other workplaces. It's also a prime emitter of artificial HEV light.

What is blue light?

Behold the light spectrum, where wavelengths of light are measured in nanometers. Notice that blue light is the closest visible light to ultra-violet light.It ranges from about 380 to 500nm, compared to red light’s 700nm.

Put simply, it’s one of the shortest, highest-energy wavelengths on the spectrum, and accounts for an impressive one-third of all visible light.

Symptoms of over-exposure

Studies have shown that prolonged and repeated exposure to blue light can have a number of ill-effects on our bodies.In the short-term: aches, strains, pains, and lethargy in around the eye area.In the long term, there's even a chance it may accelerate macular degeneration and damage cells in the retina.That blue light from your screen messes up your sleep too - surely a case of Netflix and no-chill. It depletes the production of melatonin, the hormone responsible for putting you to sleep.

1.HEADACHES

2.EYE-STRAIN

3.SLEEPLESSNESS

4.LONG TERM DAMAGE

The benefits of using PERFECTSIGHT®

1.RELIEF FROM STRAIN

Say goodbye to the headaches and eye-strain driving you crazy. So you can concentrate on getting stuff done.

2.IMPROVED SLEEP

Improve sleep quality and fall asleep easier. By blocking evening blue light, you're regulating melatonin production.

3.LONG TERM PROTECTION

We don't quite know what the future holds for screen users. But taking preventative action early might be a good idea.