Stereopsis with spatially-degraded images

Ophthalmic Physiol Opt. 1983;3(3):337-40.


Experiments are described in which stereo-thresholds were determined under conditions of monocular and binocular dioptric blur, or when spatially-filtered, computer-generated images were used. The results show that, in general, monocular image degradation in combination with an undegraded image in the other eye produces a worse stereo-performance than does the corresponding binocular combination of degraded images. High-pass spatial-frequency filtering, where image frequencies greater than or equal to 4 c/deg are retained, provides better stereo-acuity than low-pass filtering, where only frequencies less than or equal to 4 c/deg are present.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Humans
  • Optics and Photonics
  • Refractive Errors / physiopathology
  • Sensory Thresholds
  • Space Perception*
  • Visual Acuity*