AN EVALUATION OF OPHTHALMIC PLASTIC (CR-39) LENSES IN THE U. S. ARMY AVIATION ENVIRONMENT

Abstract

Thirty rated U. S. Army aviators with various types of refractive errors were selected to wear-test both clear and tinted plastic (CR-39) ophthalmic lenses for a period of six months. Subjective evaluations were made in the areas of impact resistance, scratch resistance, weight, optical clarity, comfort, cleaning ease, resistance to breakage, and accumulation of foreign material. User acceptance was quite good. Lens scratching was not found to be a significant problem.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1969
Accession Number
AD0684371

Entities

People

  • Frank H. Fischer
  • John K. Crosley
  • Robert W. Bailey

Organizations

  • United States Army Aeromedical Research Lab

Tags

Communities of Interest

  • Biomedical
  • Ground and Sea Platforms
  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Army Aviation
  • Army Personnel
  • Aviation Personnel
  • Classification
  • Crown Glass
  • Eye Diseases
  • Flight Crews
  • Glass
  • Manufacturing
  • Materials
  • Medical Laboratories
  • Medical Personnel
  • Plastic Lenses
  • Resistance
  • Security
  • Standards

Readers

  • Aviation Safety Risk Assessment.
  • Surface Coatings Technology.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.