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Comparison of six colour vision tests for occupational screening
International Archives of Occupational and Environmental Health
|January 1, 1986
Summary
This study evaluated screening tests for red-green color vision defects in students. The Boström-Kugelberg and Ishihara plates, along with Keystone and Bausch and Lomb screeners, showed promise for occupational health screening.
Area of Science:
- Ophthalmology
- Occupational Health
- Vision Science
Background:
- Red-green color vision defects affect a significant portion of the population.
- Accurate screening is crucial for occupational health and safety, particularly in trades.
- Various pseudo-isochromatic plates and vision screeners exist, but their effectiveness varies.
Purpose of the Study:
- To compare the diagnostic accuracy of different screening methods for red-green color vision defects.
- To identify the most effective screening tools for use in occupational health settings.
Main Methods:
- 52 school children and 231 trade school students were screened using Ishihara, Boström-Kugelberg, and SPP 1 plates.
- Vision screeners (Keystone, Bausch and Lomb, Rodenstock) were also employed.
- The Nagel Anomaloscope served as the gold standard for confirming red-green defects.
Main Results:
- 26 individuals with red-green defects were identified.
- Boström-Kugelberg (92.3%) and Bausch and Lomb (100%) showed high detection rates for defects.
- Ishihara (76.9%) and SPP 1 (65.4%) had lower detection rates.
- Some screeners (Bausch and Lomb, Rodenstock) incorrectly identified numerous normal individuals as defective.
Conclusions:
- The Boström-Kugelberg and Ishihara plates are recommended for screening red-green color vision defects.
- Keystone Vision Screener and Bausch and Lomb Vision tester also demonstrated effectiveness.
- These tools can be valuable for screening in occupational health care programs.