The sky is suddenly purple in Arizona
Lights from a marijuana farm in Arizona, USA have spread throughout the sky, causing many people to be concerned about light pollution but also many people enjoy it.The glasses emitted violet light to prevent nearsightedness
Researchers are collaborating on a design for glasses for myopia children aged 6 to 12 years that can emit purple light.Philippines: The sky suddenly turned purple like the end of the world
According to the Daily Star, in the video, viewers can see purple light through clouds.