>>12025954> possible blindness understand that the blindness is a thing that is progressive. you're looking at possible cancer.
>Is there some science on that low chance? When will I know? in a useful timeframe that iswe don't know. studies are done in animals with high levels of UV radiation over a short time. otherwise, it's based on long occupational exposures from workers.
you'd get blindness if you were exposed to it regularly, like in a laboratory or as a welder. an analogy would be like using sandpaper on a painted surface. each exposure is like running the sandpaper across the paint one time. you can lightly touch the paint with sandpaper a few times, but after enough rubbings, the paint is removed.
your eye is not like a painted car, but the analogy is that the damage would be unnoticeable, until it is noticeable.
there are a lot of studies on this. look into "germicidal lamp eye damage". find what it is specifically you are looking for.
https://www.med.navy.mil/sites/nmcphc/Documents/policy-and-instruction/ih-ultraviolet-radiation-technical-guide.pdffrom that document,
germicidal lamp 400watts at 50 cm is 1.0 ?W/cm^2
the ACGIH states that you are allowed to be exposed to that level of UV-C daily for between 30 minutes to 1 hour.
