Maybe is already known that the iOS version of myglass app is only available on the american app store.
So if you want to control glasses from your Apple device but you live abroad all you need to do is:
1) create an american apple id as shown here (even if it's in italian, pictures are quite explicative and easy to understand)
2) log into iTunes using your new account
3) locate "myglass", then download and install it on your device
and... that's all folks!