Filter Stability, Diagnostic Consistency, and Durability of the Farnsworth Lantern Color Vision Test

Abstract

This Laboratory, as developer of the Farnsworth Lantern (FALANT), the U.S. Navy's color vision test, has been the recipient through the years of various queries about the test. To provide the answers, three investigations were undertaken. (1) The filters in several twenty-five-year-old FALANTS were measured and found to still meet the transmittance, chromaticity, and neutrality specifications. (2) Fifty-nine color defectives were tested on NSMRL's FALANT and on a Naval Air Station's FALANT which was thought to be too stringent and all examinees received the same Pass/Fail results. (3) A questionnaire evaluating the instrument's durability was sent to all the Armed Forces Entrance and Examining Stations and the responses indicated essentially trouble-free performance.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 20, 1982
Accession Number
ADA115052

Entities

People

  • Helen M. Paulson

Organizations

  • Naval Submarine Medical Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Biomedical Research
  • Classification
  • Color Vision
  • Consistency
  • Health Services
  • Indicators
  • Instructions
  • Medical Personnel
  • Naval Air Stations
  • Naval Personnel
  • Navy
  • Physical Examination (Medicine)
  • Questionnaires
  • Signal Lights
  • Specifications
  • Submarines
  • Training

Readers

  • Psychometric Testing or Psychological Assessment.
  • Systems Analysis and Design
  • Vision Science/Vision Psychology/Cognitive Neuroscience.