"near-UV and visible blue light". What's the concern here?....they "may contribute". So the concern is speculative.
The problem here is that the only way to definitely test this is to get 100 test subjects, and under control or laboratory conditions subject their eyes to repeated and prolonged exposure to near-UV and violent blue light, and then try and measure the subsequent amount of retinal damage, macular degeneration etc. You'd also have to have a control group where there's exposure to the full specrum of UV light, and then another group with no exposure. Repeat the study multiple times across different scenarios, with different people, in different parts of the country, and then do a meta analysis of all of the results from all of the studies.
It just isn't feasible. The one major hurdle being that I doubt that there will be many, if any, volunteers who will be willing to having their eyes repeatedly blasted with UV light across the frequency spectrum to see the amount of damage is caused, when its already known that direct retinal exposure to the full UV spectrum damages the eyes. There would also be an ethical issue as to whether you should subject people such tests given the potential risk.
So here, we have an opinion from an opthamoligst with a study giving his opinion or hinting at what may happen following opinions from bodies like American Academy of Ophthalmology, the American Optometric Association, and Prevent Blindness America that repeated or excessive retinal exposure to the full UV spectrum is damaging for the eyes.
At the end of the day, I take a similar position to that adopted by Alves at post #25 - its about allowing people to make an informed decision. Some people - like the OP for instance - will bury their heads in the sand and get defensive when anything negative is presented about the shiny new product they've just bought. Other people will be more considered.