Eye Movement Desensitization and Reprocessing (EMDR) is an approach to psychotherapy that has proven effective in helping people recover from the effects of trauma. I have received EMDR training (levels 1 and 2) from the EMDR Institute, Inc.
I use EMDR as one tool in the toolkit, and find that it fits very well with the ways I understand this work.
Although the acronym refers to eye movement, EMDR is actually a therapeutic approach that can involve a number of modalities, which may or may not include eye movement depending on the particular situation. For an overview of the process (warning: jargon ahead!), follow this link.