I've heard from a couple of folks who couldn't take advantage of blue light glasses to use with computer work because they're restricted to prescription glasses.
If you're in this situation or just plain don't feel like wearing special glasses all the time, there are two other things you can use to filter computer screens and reduce your exposure to blue light:
Flux is pretty neat
It syncs with your local time to mimic the sun's changing position in the sky and the type of light emitted. Or you can block the max amount of blue light all day.
The night mode is fantastic for late work.
It's up to you how you use it and it's an amazing piece of free software.
If you're really paranoid about some blue light sneaking through Flux, you can filter the light directly at the source.
What's interesting about this company is the founders are decorated scientists with over 100 patents between them.
When they discovered how harmful overexposure to blue light can be, they left successful careers in the traditional lighting industry and started their own company.