What is blue light

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

1. WHAT IS BLUE LIGHT?

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

Blue-violet light (between 380nm and 455nm)

Turquoise-blue light (between 455 and 495nm), essential for regulating our sleep cycle. It even has the effect of improving our well-being and good mood.

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, genetics and environmental factors.

Exposure to blue light can also cause sleep disturbances, 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) a light is, the more blue light it will be. Conversely, more yellow/orange (warmer) lighting emits less blue light.
For example, screens are white lights, which is why it is necessary to protect yourself against them.

3. HOW TO PROTECT YOURSELF FROM BLUE LIGHT?

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

Moroccans spend an average of 4 hours a day in front of one or more screens (TV, computer, smartphone).

For the rest of the time, it is possible to protect yourself from blue light by wearing glasses equipped with anti-blue light lenses. The best is 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:

Do not alter color vision

Maintain the beneficial effects of blue-turquoise light

Also filter UV rays

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

You can find all our anti-blue light models here.