Lux in tenebris
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Only good, high-quality (not cheap) monitors really help. And there should always be proper backlighting. Choose one that suits you. You'll feel how much more pleasant it is for your eyes. Glasses, protectors – all nonsense. It's just a way to rip off fools.
Евангелие от Иоанна, 1.5: Lux in tenebris lucet, et tenebrae eam non comprehenderunt. Свет во тьме светит, и тьма не объяла его.