Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Visual contrast sensitivity testing: a comparison of two F.A.C.T. test types.

Edward M Hitchcock1, Robert B Dick, Edward F Krieg

  • 1U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Applied Research and Technology, Cincinnati, OH 45226-1998, USA. EHitchcock@cdc.gov

Neurotoxicology and Teratology
|March 17, 2004
PubMed
Summary

Visual contrast sensitivity (VCS) testing revealed significant differences between a hand-held chart and the Optec 1000 vision tester. These variations in spatial frequency scores highlight the need for caution when comparing VCS data across studies.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Evaluating Injury and Illness Trends in Federal and Postal Service Employees Using Workers' Compensation Claims Data 2007-2022.

Journal of occupational and environmental medicine·2025
Same author

Truck driver reported unrealistically tight delivery schedules linked to their opinions of maximum speed limits and hours-of-service rules and their compliance with these safety laws and regulations.

Safety science·2024
Same author

Work-Related Risk Factors for Rotator Cuff Syndrome in a Prospective Study of Manufacturing and Healthcare Workers.

Human factors·2021
Same author

Trends in Work-Related Musculoskeletal Disorders From the 2002 to 2014 General Social Survey, Quality of Work Life Supplement.

Journal of occupational and environmental medicine·2020
Same author

Noise exposures and perceptions of hearing conservation programs among wildland firefighters.

Journal of occupational and environmental hygiene·2019
Same author

The relationships between blood lead levels and serum thyroid stimulating hormone and total thyroxine in the third National Health and Nutrition Examination Survey.

Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS)·2018

Area of Science:

  • Ophthalmology
  • Occupational Health
  • Neuroscience

Background:

  • Visual contrast sensitivity (VCS) is a superior measure of visual dysfunction from chemical exposures compared to traditional visual acuity.
  • Two common VCS tests, a hand-held chart and the Optec 1000 vision tester, were evaluated for comparability.

Purpose of the Study:

  • To determine if significant differences exist in contrast sensitivity measurements between a hand-held chart and the Optec 1000 vision tester.
  • To assess the test-retest reliability of both visual contrast sensitivity measurement tools.

Main Methods:

  • Monocular contrast sensitivity was measured in 45 individuals using both a hand-held chart and the Optec 1000 vision tester.
  • Data were collected as part of a National Institute for Occupational Safety and Health (NIOSH) neurobehavioral test-battery appraisal.

Related Experiment Videos

  • Test-retest reliability was calculated for both testing methods.

    • Main Results:

    • Both the hand-held system and Optec 1000 demonstrated high test-retest reliability (r=.750 and.773, respectively).
    • The hand-held test yielded significantly higher contrast sensitivity scores at lower spatial frequencies (1.5 and 3.0 cycles per degree).
    • The hand-held test yielded significantly lower contrast sensitivity scores at a higher spatial frequency (18.0 cycles per degree).

    Conclusions:

    • Significant differences in spatial frequency scores were observed between the hand-held and Optec 1000 contrast sensitivity tests.
    • These discrepancies are attributed to design variations influencing viewing conditions.
    • Researchers should exercise caution when comparing contrast sensitivity scores from studies employing different VCS testing methodologies.