title: Technique for simulating G-induced tunnel vision.
abstract: A simple technique is described which helps subjects gain an understanding of the endpoint used to terminate exposure to centrifuge stress during training procedures on the human centrifuge. The technique involves manual induction of increased intraocular pressure which, in turn, causes a decrease in retinal perfusion followed by greyout and tunnel vision.
mesh_terms: D000337:Aerospace Medicine; D002498:Centrifugation; D006112:Gravitation; D007429:Intraocular Pressure; D014786:Vision Disorders / Q000209:etiology*; D014794:Visual Fields