I have used the Crizal lenses and i have observed the following with some devices:
Devices i used with LED displays:
Smartphones: Alcatel One Touch, Samsung Duos, Vodafone Smart Prime 6.
Laptops: Sony Vaio VPCYB2M1E/S, Levovo T440
I could use the devices for some time only when wearing the lenses. In the beginning i think that the lenses on their own gave me a bit of a dizziness, however after a couple of days there was no problem. The strange thing is that after a couple of months of use wearing the lenses, i can now use the above devices without the glasses!
Another thing that also worked for me; while i had read that it is better to increase brightness to full in order to eliminate/reduce PWC, in my case i obeserved that it was better to lower the lights (blue light sensitivity probably).
However, i had no luck with or without the lenses with every windows or apple phone i have tried up to now, namely Lumia 920, iPhone 4 & 5 & 6, HTC HD7.
I hope the above help some of people with sensitivity to leds. Needless to say I have no relationship with Crizal (actually the optometrist told me there are other brands that do the same thing as the Crizal lenses).