1 Pair PC 1.591 HMC SHMC UV420 Anti BLUE Myopia Optical Polycarbonate Ophthalmic Lenses
Place of Origin: Jiangsu, China
Brand: Jian
Lens Material：Resin
Index: 1.591
Vision Effect：Single Vision
Lens Coating：HMC/SHMC
Lenses Color：Clear
US$3.9/Pair, MOQ: 100Pairs(If you need, Could you please tell me through ebay message? I will give you a link, you can buy through the link. Thanks.)
1. What is Blue light?
Blue light is the most powerful part of visible light, with a wavelength between 385-505nm. Natural sunlight, digital screens such as mobile phones and computers, and indoor lighting LED lights can be found everywhere.
2 . What are the dangers of blue light?
Blue light has high energy, can reach the retina without blocking, and receives too much harmful blue light for a long time, which will cause irreversible damage to our eyes.
