title: Orbital subperiosteal hematoma from scuba diving.
abstract: Only a few cases of nontraumatic orbital subperiosteal hematoma due to scuba diving have been reported, and this is the first of such cases that underwent surgical intervention. This injury results from negative pressure within the face mask, suctioning orbital tissues into the mask after incomplete equilibration of pressure on descent. Valsalva maneuver is a second mechanism implicated in the etiology of this injury. Recognition of this injury is of the utmost importance because vision loss is a possible complication if there is compression of the optic nerve or increased intraocular pressure. In many cases of nontraumatic orbital hematoma, conservative management is adequate; however, this case was an exception due to worsening exam findings. Divers may be able to prevent this injury by frequent and gentle equilibration of mask pressure on descent.
authors.affiliation: Department of Emergency Medicine, Madigan Army Medical Center, Fort Lewis, Washington, USA. crosenberry04@jcu.edu
authors.forename: Clark
authors.initials: C
authors.lastname: Rosenberry
authors.forename: Matthew
authors.initials: M
authors.lastname: Angelidis
authors.forename: Diane
authors.initials: D
authors.lastname: Devita
mesh_terms: D004242:Diving / Q000009:adverse effects*; D006406:Hematoma / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D009915:Orbit / Q000293:injuries*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014786:Vision Disorders / Q000209:etiology*