A few more points:If you've never had flash burn on the eyes its an interesting pain. The one thing is for sure if you've ever gotten it you'll never want it again. It feels like someone put sand in your eyes and you cant get it out, it is miserable.
Basically its a sunburn on your cornea.
Long term UV exposure raises risk of cataracts and macular degeneration. I wear contacts and even on a cloudy day the sun bothers my eyes enough that I wear sunglasses.
Welding helmets are a big business for a good reason.
I wouldn't be surprised to see late night TV commercials by attorneys seeking victims of UV light exposure from covid sterilization scenarios. I can hear it now "Have you or a loved one been exposed to UV light from......"
I've had to take several people for emergency eye treatment over the years. The worst was when a subcontractor was pumping Portland cement grout and the hose slipped out of his hand spraying his face. Knocked his safety glasses off and packed grout under his eyelids. The only eyewash we had was the water cooler full of water and lots of ice. We laid him back and flushed until we ran out of water to minimize the caustic effect of the grout. He was fortunate because the regional eye clinic was just two blocks away and they flushed more. He ended up with mild corneal abrasions and the next day off at the hotel.