I have no idea how to phrase the question, sorry for that.
I'm completely new to blender, I've followed this tutorial to a T to create a bone that controls the movement of a texture (in this case the eyes, as I have a cartoony anime style head and spheres don't work with their shape) and it works exactly as it does in the tutorial, but I'm having a problem with the eyes not moving "straight" together horizontally - they move almost along a curve. Vertically they seem to move fine.
This appears in the tutorial as well however it isn't addressed. Is there a way I can make the eyes follow the bone exact rather than how it follows above? (and yes the eyes move in the opposite direction of the bone.. I tried to fix this as the person in the video did but for some reason it doesn't work.)