title: A new method of determining the primary position of the eye using Listing's law.
abstract: A new method of determining the primary direction of regard, using Listing's law as a basis, is described. Previous techniques have required a trial-and-error experimental procedure. The present technique requires only a single measurement set of eye torsions in selected gaze directions. Experimental data to illustrate the technique are presented.
mesh_terms: D005123:Eye / Q000503:physiopathology; D008954:Models, Biological; D009799:Ocular Physiological Phenomena; D009801:Oculomotor Muscles / Q000502:physiology* / Q000503:physiopathology; D009988:Orthoptics / Q000379:methods*; D012399:Rotation; D013285:Strabismus / Q000175:diagnosis; D014102:Torsion Abnormality / Q000175:diagnosis