Abstract: We created anatomical 3D objects regarding eye mechanism in Second life as learning materials. We conducted several substantiative experiments to prove how much understanding of participants of the experiments could improve their knowledge by lecturing with these objects. The 3D objects which we created provide an artificial experience which we can never have in the actual world. For instance, we can see a huge eye ball and we can enter inside of it. Enjoyment and excitement through such an artificial experience becomes a trigger of arousing our motivation for learning and bring us deep understanding.