These glasses feature our custom designed SunDown amber lens has been specifically designed and proven to block 99% of blue light from 380-500nm and green light from 500-530nm from electronic devices without distorting your vision. Be careful as there are many other \"blue blocking\" glasses on the market that don\'t block all the required blue light wavelengths which is essential for them to be effective! The SunDown lens is much more effective at reducing the harmful effects of blue light and improving your sleep.
