FlashBang/Dazzling effect

I was looking for a way to do something like a flash bang effect in blender for my game level, and started with it then when I had this finished I noticed that there was something like this in the forum, but I also noticed that there was something missing in that implementation and I already have it, and it was the dazzling effect.

So hereis my result:
https://gifyu.com/images/2017-06-30_18-26-55.gif