The Epley maneuver (or canalith repositioning maneuver) is a maneuver used to treat benign paroxysmal positional vertigo (BPPV). It is often performed by a doctor or a physical therapist, after confirmation of a diagnosis of BPPV using the Dix-Hallpike . This maneuver was developed by Dr. John Epley and first described in 1980. Physiotherapists now use a version of the maneuver called the "modified" Epley that does not include vibrations of the mastoid process originally indicated by Epley, as they have since been shown not to improve the efficacy of the treatment...