Quote:
Originally Posted by CoombellKid
..... I've worked with high power lasers for public displays,
corporate events, rave & dance parties x 300+ almost all these shows
involved crowd scanning (which is still legal in this country) and with some
events with crowds up to 50,000 people. Using lasers from 100mW through to
20W and never had one complaint about flash blindness or disorientation or
eye injury due to lasers. And I can ensure you my eyes have been scanned
across dozens of times on each night. The only known case that I know of
regarding blindness had happen in the eastern block country. Where some
promoter of a rave event used a copper based pulse laser. Pulse lasers are
the most dangerous to our eyes and are the type steal companies use to cut
steel and are a lot more powerful.....
|
I wonder if this is an example, Rob? - just reported:-
Russian laser show blinds revellers:
Dozens of young revellers were blinded by a laser show at a dance music festival near Moscow last week and doctors fear the damage may be irreparable, the Kommersant daily has reported.
"More than 30 people between the ages of 16 and 30 have ended up in hospitals in the capital with the same diagnosis, damaged retinas, since July 7," the report said, quoting doctors.
"All of them have burnt retinas, you can see scars on them. The loss of eyesight in some cases is up to 80 per cent and it's unlikely it can ever be restored," one doctor told Kommersant.
Festival goers being treated in hospital said they were blinded when lasers intended to light up the night sky were trained on dancers.
"I immediately saw a black spot like the kind you get when you look at the sun," said one of the patients.
The Aquamarine festival took place near the town of Vladimir, some 170 kilometres east of Moscow.