‘Up to 30 partygoers at an outdoor rave have been partially blinded by a laser light show.
Health officials confirmed 12 cases of laser-blindness from the event, with reports suggesting up to 17 more.
Some of those affected have lost up to 80 per cent of their vision.
Guests at the Aquamarine Open Air Festival in Kirzhach, Russia, began seeking medical help days after the show, complaining of vision problems.
Lasers like these were erected inside giant tents at the Aquamarine Open Air Festival in Kirzhach, Russia, after heavy rain. Up to 30 ravers suffered permanent damage to their vision.
Heavy rain had forced organisers of the event, which took place on July 5 in the town 50 miles outside Moscow, to put up tents for the all-night dance party.
The lasers, which are designed to illuminate the sky, were reflected by the canopy into the eyes of the ravers, burning their retinas.’