If you're driving at night, there's an interesting phenomenon that's had people wondering whether there's any significance behind those purple street lights.

We are faced with a global epidemic of myopia (short-sightedness) because we are deprived of deep violet light (360-400 nm). Myopia is projected to rise from 23 to 50 percent of the world’s population ...

SIOUX CITY, Iowa (Sioux City Journal) — Over the last few years, defective LED streetlights in Sioux City have been showing their true colors, casting a garish purple- or violet-ish hue over streets ...