what is the difference between blue light and uv light?
UV light contains UV-C (100 nm to 280 nm), UV-B (280 nm to 315 nm) and UV-A (315 nm to 400 nm). ... However, by and large, UV light does not reach the retina. On the other hand, visible light does reach the retina. Blue light, sometimes referred to as high-energy visible (HEV) light, encompasses 400 nm to 500 nm.