Speaking of lasers… during an outdoor rave near Moscow, 12 people lost their vision after viewing a laser light show that burned their retinas. Attendees at the Aquamarine Open Air Festival started seeking medical help a few days after the show. They complained of eye irritation and vision problems.
Moscow health department officials confirmed 12 cases of being blinded by the lasers and another 17 people from the rave are registered at City Hospital in the capital. They all have retinal burns and visible scarring which makes regaining vision impossible.
Due to a big rain, massive tents had to be put up at the rave. The lasers that normally illuminate into the sky instead reflected into the eyes of the people at the all-night dance party.