Just read this crazy story over on Reuters UK. After an Open Air Festival in Moscow dozens of audience members have been hospitalized for partial blindness. "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." a reporting newspaper quoted a treating ophthalmologist as saying.
Yipes. 80% vision loss.... of course the organisers have no phone number or contact details on their website and it looks like they've done a legger. I used to work the lights I burned my fingers a few times trying to realign those lasers so I know how powerful they can be and how careful you have to be when working with them. Apparently it was raining in Moscow that night so the organisers of the rave put some kind of tent over the audience and laser light that was supposed to illuminate the night sky was reflected back into the crowd.
"I immediately had a spot like when you stare into the sun," rave-attendee Dmitry told reporting newspaper Kommersant.
Who is to blame.... "illiteracy on the part of technicians" according to a laser hire company.