Many glasses that claim to be blue light blocking glasses on the market are just orange tinted glasses no different to ballistic safety goggles. These glasses provide a small amount of protection against blue light as orange color alone is not sufficient to filter the whole range of the blue light wavelength. Other glasses have no tint at all and can therefore only ever be effective at blocking the lower part of the blue light spectrum, if at all.
Swannies Blue Light Blocking Glasses are FDA registered and have been extensively researched, designed and manufactured specifically to block the full spectrum blue light by combining a specific colored tint with special AR coatings which work together to effectively filter blue light.
Swannies are made with top quality acetate frames with spring hinges and top of the line CR-39 lenses with UV rated anti-glare coating on both front and back. We are confident that you won't find better quality blue light blocking glasses on the market.