Place your Moon on your head and adjust the head strap and display to make it comfortable. To set the correct distance between your eyes locate the focus wheels found underneath the display and using your thumbs, press both dials in and hold.
As you get closer to matching your interpupillary distance the double vision or blurriness will go away. Conversely, if you notice it is getting worse you need to reverse the direction you were moving the wheels. Once you have found your correct interpupillary distance, move on to next step.