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The KASS R-8121 is a round-frame pair of blue light blocking glasses with a transparent grey front and brown temples. The polycarbonate frame is built to feel sturdy, and the aspheric lenses are anti-scratch, thin and light. The 48mm lens width and 21mm bridge give a smaller, round fit that suits narrow to medium faces. Against typical blue light glasses, the round shape and clear grey frame stand out more than the lens tech, which is standard filtering rather than anything proprietary.
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This is a round-frame pair of blue light glasses from KASS, with a transparent grey front and brown temples. The design is modern and made to be easy to wear.
The lenses filter blue light from screens to help reduce eye fatigue. They are anti-scratch aspheric lenses, which keeps them scratch resistant, thinner and lightweight. The frame is made of polycarbonate for added sturdiness.
