Spatial Contrast Sensitivity with Extremely Small Pupils.

Abstract

Six subjects were fitted with soft contact lenses with 1.5 mm pupil openings. Spatial contrast threshold function (CTF) were measures on these subjects and comparisons were made between the CTF when wearing the 1.5 mm contact lens and normal contact lens. The spatial CTF's were determined for 8 spatial frequencies between 0.75 and 21 cycles per degree of visual angle using the forced choice staircase procedure. The purpose of this experiment was to determine if changes in CTF from drug induced miosis was comparable to miosis produced by artificial pupil in contact lens.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1983
Accession Number
ADA141970

Entities

People

  • A. J. Pantle

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Biomedical Research
  • Contact Lenses
  • Contracts
  • Contrast
  • Engineering
  • Frequency
  • Government Procurement
  • Governments
  • Human Factors Engineering
  • Nerve Agents
  • Psychology
  • Security
  • Sensitivity
  • Standards
  • Technical Information Centers

Fields of Study

  • Physics

Readers

  • Rocket Propulsion.
  • Team-Based Human-Centered Cognitive Task Decision Making and Information Performance.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.