"Okuno et al. [119] evaluated the blue-light hazards from many different light sources and reported that the exposure (even for less than a minute) to blue light from the sun, arc-welding lamps, and the arc of discharge lamps is hazardous to the retina, whereas the exposure to blue light from fluorescent lamps or LEDs does not pose a significant hazard.UV can do significant damage to your eye as anyone who has looked too long at a welder at work can tell you. Again interesting stuff, but as was stated in the article it was mostly done with nocturnal rodents (rats and mice).Emphasis mine. ...
Finally, ultraviolet (UV) light is a risk factor for age-related macular degeneration. "
Sun & welding - I wear eye protection. But in the office (especially these days) and at home, people spend a large amount of time with their eyes focused on a LED display and do not wear eye protection. The damages over time are photochemical and physical.
You can have my LEDs...from my cold, dead hands - Ive been thrilled about them since I was young. I wear blue-blockers (gaming glasses) so I can keep on enjoying them.