Now if only they'd stop selling Kindles with awful pure white backlights. You only need it when it's dark, and when it's dark your light should be yellow/orange!
I gotta get me those goggles...
They are like ten bucks on Amazon. I have the Terminator UV 400 Orange model and I'm pretty happy with them. They block almost all light below 490nm.
I have Kobo Aura ONE[1] and it has automatic orange backlight. I'm relatively happy with it even though the lighting is slightly uneven and has barely visible greenish hues at the corners...