A quick scan of article in Google Scholar seems to show that orange lenses (the blue light reducing glasses) seems to help with eye strain and to help re-regulate cicadian rhythms (eg ameliorate the screens’ emitted light keeping teenagers awake at night). So not a gimmick for those things, but they are not a cure-all.
I would think that at this stage, we are too early in the research to have any sort of standard.
