You need to stand on the center piece of land, close to the wall that the eyes are on, and face downward (away from them). Put a tightrope between the two pegs, and get out your bow. The aiming for this is not difficult, but is kinda hard to explain. You need to aim your arrow about halfway between the center of the rope and the spot on the rope that is directly in front of the eye. The arrow will bounce off the rope at an opposite angle and should go straight into the eye. If your aim is a bit off and the arrow misses the eye, just adjust your aim at the rope slightly. I honestly don't think I have ever missed the eyes on the first try, so it should easy to get the aim.
