Wow... This is nice. I'm contemplating getting a shield too just to protect my eyes from rays and lightening from computer and phones because of the nature of my work. I like yours though.
I just sold these, so I am going to close the thread.
If you are worried about a computer screen I would recommend getting glasses not sunglasses. These wouldn't help you. I have glasses for when I am on the computer and they work really nice, you can actually feel a difference if you spend 5+ hours a day on the computer as I do.