-Be careful next time you’re at an event and someone fires up the laser show! Lose of vision from laser reflections!-
Attendees at the July 5 Aquamarine Open Air Festival in Kirzhach, 80 km (50 miles) northeast of Moscow, began seeking medical help days after the show, complaining of eye and vision problems, health officials told Reuters.
“They all have retinal burns, scarring is visible on them. Loss of vision in individual cases is as high as 80 percent, and regaining it is already impossible,” Kommersant quoted a treating ophthalmologist as saying.
Attendees said heavy rains forced organizers to erect massive tents for the all-night dance party, and lasers that normally illuminate upwards into the sky were instead partially refracted into the ravers’ eyes.