oval blue light blocking reading glasses women 5 tmcg144 Wide Verbesserte Langlebigkeit: Diese Lesebrille bietet

Verbesserte Langlebigkeit: Diese Lesebrille bietet zuverlässige Leistung

2 1/8 Zoll (53 mm)

Bridge(DBL) about 15/16 inches (24mm)

Block 40% blue light

oval blue light blocking reading glasses women 5 tmcg144 Wide Verbesserte Langlebigkeit: Diese Lesebrille bietetThe performance of blue light blocking: block 35% within 500nm, block 42% within 490nm, block 49% within 480nm, block 55% within 470nm, block 60% within 460nm, block 64% within 450nm, block 67% within 440nm, block 77% within 430nm, block 97% within 420nm, block more than 99% within 400nm 410nm. The lenses block 30% blue color of online test for color filtering properties. 100% UV protection. 20% color distortion due to 30% blue color was filtered out.