Changes in Listing's plane after sustained vertical fusion.

  title={Changes in Listing's plane after sustained vertical fusion.},
  author={Heimo Steffen and Mark F. Walker and D. S. Zee},
  journal={Investigative ophthalmology & visual science},
  volume={43 3},
PURPOSE To determine whether prolonged fusion of an imposed vertical disparity leads to a change in the orientation of Listing's plane, even when measured during monocular viewing. METHODS Four normal subjects (age range, 24-37 years) wore Fresnel prisms of increasing power for 72 hours to produce a final left-over-right disparity (range, 7-11 prism diopters [approximately 3.9 - 6.2 degrees]) that was still fusible. Eye movements were measured binocularly, using three-axis search coils, as… CONTINUE READING