Multiple Texures on one mesh?

IS there anyway to be able to apply multiple textures in the mesh seen below? Since I need one for eyes, but will I need to map the Eye textures to the mesh in another program? And how could I get it to show in the Unity Editor and function properly? (I used Blender) ![Multiple Textures?][1] [1]: /storage/temp/47743-multiple-textures.png