Blue Light: Let’s learn to protect ourselves from it

1. WHAT IS BLUE LIGHT?

Blue Light is part of the light visible to our eyes: visible light ranges from 380nm to 780nm wavelength. Blue light corresponds to the range between 380 and 500 nanometers.
Blue light can be divided into two parts:

2. WHY PROTECT YOURSELF FROM BLUE LIGHT?

The energy of a photon is inversely proportional to its wavelength. Okay, but what does that mean?
This means that the lower the wavelength of light, the more energetic it is, and therefore potentially dangerous.
Blue light accelerates the aging of the retina and contributes to the risk of age-related macular degeneration (AMD), among other factors such as age or genetic and environmental factors.

Exposure to blue light can also cause trouble falling asleep, migraines or visual fatigue at the end of the day.

The sun and all artificial lamps and lighting are sources of blue light. The whiter (colder) the lighting, the more blue light it will be. Conversely, more yellow/orange (warm) lighting emits less blue light.
Screens are, for example, white lighting, which is why it is necessary to protect yourself from them.

3. HOW TO PROTECT YOURSELF FROM BLUE LIGHT?

The simplest solution is to limit exposure to blue light, by reducing screen time for example.

For the rest of the time, it is possible to protect yourself from blue light by wearing glasses equipped with anti-blue light lenses. It is best to choose lenses that filter blue-violet light and let blue-turquoise light through. By filtering only part of the blue light (20 to 30%), this allows 3 things:

Our non-prescription lenses or our anti-blue light prescription lenses filter out 30% of blue light.
It is the perfect compromise between effective protection and wearing comfort without altering color perception.