Photocromic Tr90 Square Anti-blue Light Readers' Sports Eyeglasses

Grey Orange Unisex Tr90 Photocromic Square Anti-blue Light Farsighted Readers' Optical Eyeglasses.

Anti-blue Light Glasses can prevent blue light from irritating the eyes. It can also effectively isolate ultraviolet and radiation and can filter blue light. Suitable for use when watching Computer or Television, mobile phone. Blue light is a part of natural visible light and Sunlight.There is no separate white light in nature itself. Blue light, Green light, and Red light mix to show white light. Green light and Red light have less energy, less irritation to eyes but short blue light waves high energy can directly penetrate the lens to reach the macular area of the eyes leading to macular lesions. Blue light is divided into beneficial and harmful. Blue light with a wave length between 415 nm & 455 nm is short wave harmful blue light which needs to be prevented by using Anti- blue light lenses.
 Lenses are impact resistant, scratch resistant, polycarbonate lenses, metal frame.