Horizontal fixation disparity measures with nonius lines.

  title={Horizontal fixation disparity measures with nonius lines.},
  author={Wolfgang Jaschinski and W. D. Kloke and Stephanie Jainta and Julia Buchholz},
  journal={Optometry and vision science : official publication of the American Academy of Optometry},
  volume={82 11},
PURPOSE It has been reported that changes in visual direction and retinal correspondence may limit the validity of nonius lines as a subjective measure of vergence, at least in particular viewing conditions, e.g., dynamic or forced vergence. Nonius lines may be valid at larger spatial separation between fusion contour and nonius lines. Therefore, we measured fixation disparity varying the amount of a vertical gap between nonius lines. METHODS A static central fusion stimulus was given at a… CONTINUE READING