Bluetech glasses6/7/2023 ![]() ![]() This frequency range not only interferes with restful sleep, but it may also promote an irreversible disease called macular degeneration. But a certain portion of the blue light spectrum offers nothing to be happy about. ![]() Many people would name blue as their favorite color, and the cheery sight of a bright blue sky is always a welcome one. BlueTech Lenses at Eyeland Eye Care in Rockville, MD
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