Gunnar glasses are recommended for use when looking at electronics in the evening after sunset.

“the main issue is if you can remember to do so putting these on once the Sun Goes Down as you're looking at electronics huge difference especially for computer so I'm more of a laptop guy than I am a phone guy and I'm usually working on a computer I don't know till at least an hour before bed unfortunately and this is key whereas on the phone there is a setting that like renders the phone completely red or completely gray which is different from just the usual light setting on the phone and that usually is more than adequate than needing these glasses”