The benefits of blue-blocking glasses are immense. Benefit is to prevent damage to the DHA essential fat in your retinal pigmented epithelium which is responsible for converting sunlight into vital DC electric current your body needs. Additionally blue light will increase the distance of the proteins in the respiratory electron transport chain in your mitochondria making them far less efficient in producing mitochondria. Those who wore blue-blocking glasses from 6 p.m. to 8 a.m. for seven days had significant improvements in symptoms of mania compared to those who wore clear glasses. What's more, the improvements began after just three nights of use.

metal frame
plastic lens
non-polarized
Lens width: 54 millimeters
Reduce visual fatigue and discomfort from long periods of web surfing, gaming and working under fluorescent lights with UV400 protection and glare reduction. Better sleep. Optical Eyeglasses Frame Fitted With UV Protection/ Scratch Resistance/ Anti-Blue Lens.
Adult Size - 142mm frame width, 54mm lens width, 39mm lens height, 19mm bridge, 137mm Temple Length.
Premium Men Fashion Eyeglasses Made of Anti-Allergen Stainless Steel Frame - Lightweight Spring Hinge Design - Wide Head Fitment
Content include Anti Blue Ray glasses, microfiber cleaning/storage cloth.

Men Premium Rectangular Stainless Steel Reading Glasses /w Anti-Blue Lens Reader