title: Swivel arm perimeter for visual field testing in different body positions.
abstract: To investigate the influence of body position on visual field results, a 'swivel arm perimeter' was built, based on a modified Octopus 1-2-3. Here, the measuring unit was detected from the control unit and mounted on a swivel arm, allowing its movement in all directions. The first results obtained with this device have indicated that its development was worthwhile.
authors.affiliation: Department of Ophthalmology, University of Basel, Switzerland.
authors.forename: J
authors.initials: J
authors.lastname: Flammer
authors.forename: P
authors.initials: P
authors.lastname: Hendrickson
authors.forename: A
authors.initials: A
authors.lastname: Lietz
authors.forename: D
authors.initials: D
authors.lastname: Stümpfig
mesh_terms: D006801:Humans; D011187:Posture; D014786:Vision Disorders / Q000175:diagnosis*; D058609:Visual Field Tests / Q000295:instrumentation* / Q000379:methods; D014794:Visual Fields