RG287LA BLUE BLOCK
BADS plastic reading glasses. With cover, cloth and cord. Rod with flex. Lens with protection against harmful light from electronic screens (UV and blue-violet). Graduations: 0.00/+1.00/+1.50/+2.00/+2.50/+3.00/+3.50 What is blue light? Continued exposure to artificial light from digital...
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