4 FREQUENT QUESTIONS ABOUT BLUE LIGHT
1. Is all blue light harmful?
No – half of the blue light (blue turquoise) is actually essential to our healthy development.
2. What is wrong about blue light?
Blue-violet light is causing more glare than other types of light, it may cause eye fatigue. On the long term, it is suspected to contribute to eye aging and to increase the risks of some age-related eye diseases.
3. Am I only exposed to blue light with my laptop and smartphone?
No – Blue-violet light is also emitted by TV screens, LED (used for indoor lightning) and for a large part by the sun outdoors
4. How can glasses help?
A special lens material or a lens coating can filter part of the harmful blue light.
ARE THEY DANGEROUS FOR YOUR SKIN ONLY?
We protect our skin from UV rays with sunscreens, and for some us even with daily skincare every day. So, what about our eyes?
UV rays are harmful to the eyes, and are contributing to the premature appearance of age-related eye diseases such as cataract. As we live longer, it becomes increasingly important to take the matter seriously.
Actually, selected eyeglass lenses can cut 100% of UV rays. Contrary to many beliefs, clear prescription lenses can as efficiently filter UV rays as sunglass lenses. Lenses with an E-SPF index filter UVA and UVB rays on both sides of the lens, avoiding UV reflected on the back side of the lenses.
The higher the E-SPF index the better the protection.