Now, this may be working as intended but some you may not know this so here goes.
If you want to see far around a corner or whatever you can use eyes of the beast and while in controlling your pet you can use eagle eye from your pets point of view. For example you can see around a corner with eagle eye so if you use eyes of the beast you can controll your pet and then use eagle eye from his/her perspective. Kinda useless and very situational.
Happy playing =D