EMDR (Eye Movement Desensitization and Reprocessing)
EMDR (Eye Movement Desensitization and Reprocessing) is an information processing therapy that helps clients cope with trauma, addictions, and phobias.
During this treatment, the patient focuses on a specific thought, image, emotion, or sensation while simultaneously watching the therapist's finger or baton move in front of his or her eyes. The client is told to recognize what comes up for him/her when thinking of an image; then the client is told to let it go while doing bilateral stimulation. It's like being on a train; an emotion or a thought may come up and the client lets it pass as though they were looking out the window of the moving train.
Sourced from: https://www.psychologytoday.com/us?tr=Hdr_Brand