Blue Light Blocking - What is it & why is it important for health?

What is Blue Light?

Blue light is a high-energy, short-wavelength light that is part of the visible light spectrum. The visible light spectrum ranges from red light, which has the longest wavelength and lowest energy, to blue and violet light, which have the shortest wavelengths and highest energy. Wavelengths of light and measured in nanometers (nm). Blue light falls between 400nm and 495nm on the light spectrum.

Blue light is emitted naturally by the sun, which is beneficial to our well-being. Sun exposure regulates our circadian rhythms, and increases feelings of alertness.

Overexposure to artificial blue light emitted by digital devices, LED and fluorescent lighting, especially at night, can negatively impact our health. In our modern world, exposure to blue light is inescapable.

Exposure to artificial blue light in the range 415nm to 455nm has been shown to lead to digital eyestrain, symptoms include:
- Dry eyes
- Blurry vision
- Headaches
- Neck and shoulder pain

Prolonged screen exposure can make it harder to concentrate due to the discomfort caused by eye strain and headaches.

Exposure to blue and green light between 400nm and 550nm has been shown to be disruptive to melatonin production and impact our sleep.

While the short-term effects of blue light exposure are noticeable, there are also potential long-term concerns. Some studies suggest that excessive exposure to blue light over time may contribute to retinal damage and increase the risk of developing macular degeneration, a condition that can lead to vision loss.

Individuals who suffer from photophobia, migraines or tension headaches may find that blue light exacerbates their symptoms. Bright lights and screens can be significant triggers.

Our largest and most frequently overlooked organ that is impacted by exposore to blue light is our skin. Studies show that exposure can lead to wrinkles, fine lines, and dull complexion. Blue light may also cause hyperpigmentation, as well as disrupt your skin barrier, causing dryness or irritation.

So what can we do?

Blue Light Blocking Glasses

The use of blue light blocking glasses, can protect your eyes, skill and hormones from unnecessary damage.

For Day use:

Bon Charge Computer Glasses filter down artificial blue light, which means less blue light reaches and damages your eyes while using devices during the day.

They offer anti-glare lenses and crystal-clear vision, minimal colour distortion, and are smudge proof, water-resistant, and highly durable against scratches and dust.

Available in Prescription, Non-Prescription and Reading Options. Use your own frames or choose from a pretty snazzy range.

Bon Charge Light Sensitivity Glasses showcase funky yellow lenses that are designed to block 100% of light between 400nm and 455nm in line with the academic literature.

Wear these glasses indoors during the daytime and into the early evening. The warm yellow hue can uplift mood and boost productivity.

Available in Prescription, Non-Prescription and Reading Options.

For Night use:

Bon Charge Blue Blocking Glasses block 100% of melatonin disputing blue and green light from 400nm to 550nm for optimised sleep, recovery and relaxation.

Wear 2-3 hours before bed for a restful sleep. Great for managing jet lag, attending to baby night feeds, and other night activities.

Available in Prescription, Non-Prescription and Reading Options.