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These are rectangular reading glasses with acrylic lenses and a plastic frame on spring hinges. The lenses block about 60% of blue light while adding roughly 20% color distortion, so screen colors shift slightly. The 138mm frame width and 52mm lens width suit average adult faces, and the 34mm lens height keeps the frame shallow. They fit people who read on phones and laptops and want some blue-light filtering without a dedicated computer pair.
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These rectangle reading glasses have acrylic lenses that block 60% of blue light, with 20% color distortion. The frame is plastic with spring hinges.
