My therapist talked a little about it last time I was there. She'll explain more about it next time I go. I did it for a little bit and I didn't do anything with my eyes but instead she had me put on these headphones that did like this beep in one ear and then the other ear and then kept going back and forth. You can choose to have it go slow or a little faster. You do whatever speed feels comfortable to you and then she would ask me some questions while that was going on. She said it was a newer form of therapy. I find it interesting so I'm gonna do it.