Fashion big box square sunglasses for men and women Men & women sunglasses

$ 13.61

Features: Adjustable, LED, Lightweight, Oversized, Reflective, Rimless, Water Resistant Model: Christina Dior SoReal Style: Square Personalized: No Brand: Unbranded Lens Color: Multicolor Lens Material: Glass, Mirror, Plastic, Polycarbonate Country/Region of Manufacture: China Theme: 80s, 90s, American, Anime, Army, Beach, Biker, Cars, Classic, Colorful, Designer, Hip Hop, Hippie, Hipster, Holiday, Logo, Modern, Motorcycle, Outdoor, Retro, Sports, Tortoise, USA, University, Art, Band, Aztec, Beer, Boho, Bird Frame Material: Acetate, Metal, Plastic, Titanium UV Protection: UV400 Department: Men MPN: 547857 Pattern: Solid Lens Technology: Anti-Reflective, Gradient, Mirrored, Polarized, Tinted Vintage: No Frame Color: Multicolor Type: Sunglasses

Description

What is a blue light? The human eye gradually adapts to natural light sources as it evolves naturally. But in just a short period of 100 years, human technology has evolved with each passing day, producing a variety of artificial light sources. These new artificial light sources will generate a large amount of blue light, which represents 26% of the light emitted by compact fluorescent lamps, which are energy efficient and increasingly popular. It also includes smartphones, computers, TVs, and more. It can almost block the blue light of computers and smartphones.