Lens fatigue resistance

The peak spectrum of blue light is in the range of 400-500 nm. If the human eye continues to direct light for more than 2 - 3 hours, it will show obvious decrease in cell viability and apoptosis. Blue light to the human eye, that is, retina damage is also a certain threshold, also in daily life and work also need to control the fun of mobile phones and computers and watching TV time, do not overuse the eyes, or very safe, after all, we humans evolved millions of years, but also not so fragile. Plus can use anti-blue lens, can play a certain protective role.