Blue Light Blocking Glasses for Computer Gaming Reading - Tiger Color:Black the 45MM shot focal length

the 45MM shot focal length design bring a 85 degrees FOV

especially for shining summer and snowy winter

55 inches)

the Chronos reduces eye strain while maintaining a bold

Blue Light Blocking Glasses for Computer Gaming Reading - Tiger Color:Black the 45MM shot focal lengthWhat is blue light? Blue light has a very short wavelength, and so produces a higher amount of energy. Studies suggest that, over time, exposure to the blue end of the light spectrum could cause serious long term damage to your eyes. "Nearly 70% of people experience digital eye strain due to prolonged use of electronic devices." The Vision Council. Teddith Blue Blocker Lenses are virtually clear lenses made with a special blue light blocking polymer