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FWIW I have some pressure-sold computer eye strain glasses.
They do seem to help a bit, either to slow onset of eye strain or reduce symptoms if already happened. Cant say they are extremely effective but they do help a bit.
Mine have some sort of coating that appears to work like a blue light filter.
If you can do it on the cheap why not give them a shot? That said, the fact I still feel that they were pressure sold to me probably says a lot...
Often these are just like reading glasses - so near distance - but set to slightly further away than books. I don't think that's my issue. Will be in a few years no doubt, but at the moment I'm still your bog-standard myopic and wear specs to suit. I will try and get an eye test soon tho in case it's changed recently.