There is evidence that too much screen time on modern LED devices messes with our circadian rhythm - especially before before bed.
This shouldn't be too complex of a problem though,
1. You can wear blue filter glasses. These are basically yellow/orange filters (complimentary to blue/violet), maybe with some near UV protection as well. I wouldn't pay more than $20 for a pair. Its kinda dorky and impractical in many cases.
2. Many modern LED devices have built in internal "filters" - i.e. they turn down the blue LEDs, leaving the screen looking kinda orange-yellow. My kids laptop and tablet is set to automatically switch to blue-light reduction after 19:00.
3. Get yourself and especially the kids off the LED devices (TVs, Tablets, Phones) once it starts getting dark outside.
"The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts." - Bertrand Russell