
1. Ordinary Clear Blue-Light Glasses Are Built for a Different Job
Almost every pair you have seen was designed for daytime.
Office lighting. Computer work. Nine hours at a monitor.
They are built to keep colour looking normal so you can still do your job. Which means they can only ever filter a limited portion of the blue spectrum.
That is not a flaw. It is exactly what they were built for.
But it changes the question you should be asking. Not “do these block blue light?” Every pair blocks some. The useful question is:
Which wavelengths do they filter, and how much?
Trying to manage the glare of a modern evening with clear daytime lenses is like trying to stop a tidal wave with a screen door.






