I sit infront of a computer 8 hours a day minimum. I use to get headaches by the end of the day, this went on for years if I was reading for a large portion of the day. I switched to the lenses that block a spectrum of the blue band and have completely eliminated my headaches. 100% for computer only work I'll never go back.
Im not sure if mine are Hoya or Nikon. All the major brands have their version, they're probably all similar.
You can't tell that the lenses are blocking blue except for a few things. One, when looking through them, whites will appear slightly yellow tinted, and two, the reflections have a different colour. If you notice normal anti glare reflects greenish, these reflect purplish.
As far as I can tell after close to a year of wearing them, there are zero downsides.