Accommodation and Stereoacuity

Abstract

Stereoacuity and resolution acuity were measured through apertues set at various distances from the subjects and through plus lenses producting an accommodative error for the target equal to that produced by the presence of the apertures. Stereoacuity was degraded by the apertures but not by the lenses, whereas resolution acuity was degraded by the lenses but not by the apertures. Although stereoacuity progressively declined with decreasing target-distance, it did not change significantly if accommodation remained constant. The decline of stereoacuity in the water is attributed to increased accommodation resulting from different sources and to the paucity of visual stimulation which is typical of the underwater scene and which is known to disrupt many visual processes (the so-called 'Ganzfeld' effect).

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Document Details

Document Type
Technical Report
Publication Date
Jun 05, 1972
Accession Number
AD0757334

Entities

People

  • Jo Ann S. Kinney
  • Saul M. Luria

Organizations

  • Naval Submarine Medical Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Abstracts
  • Biological Sciences
  • Biomedical Research
  • Buildings And Structures
  • Classification
  • Contrast
  • Degradation
  • Navy
  • Ocular Vision
  • Precision
  • Research Facilities
  • Security
  • Submarine Bases
  • Submarines
  • Targets
  • Visual Acuity
  • Visual Perception

Fields of Study

  • Psychology

Readers

  • Vision Science/Vision Psychology/Cognitive Neuroscience.