Using Immersive Virtual Reality to Treat Complex Regional Pain Syndrome in Adults

Inclusion Criteria * adults (18+) * confirmed diagnosis of either CRPS I or CRPS II of one or both upper limbs (as defined by the Budapest Criteria) * average pain score in the affected CRPS limb(s) greater than or equal to 3 out of 10 * on a stable treatment plan for 4 weeks prior to the VR intervention phase * ability to wear a VR head-mounted display * ability to speak and read English * ability to provide informed consent. Exclusion Criteria: * personal history of severe motion sickness * severe systemic disease that is a constant threat to life (ASA class IV+) * prisoners.