Prevalence of color vision deficiency among arc welders

Heydarian, S. and Mahjoob, M. and Gholami, A. and Veysi, S. and Mohammadi, M. (2017) Prevalence of color vision deficiency among arc welders. Journal of Optometry, 10 (2). pp. 130-134.

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Purpose This study was performed to investigate whether occupationally related color vision deficiency can occur from welding. Methods A total of 50 male welders, who had been working as welders for at least 4 years, were randomly selected as case group, and 50 age matched non-welder men, who lived in the same area, were regarded as control group. Color vision was assessed using the Lanthony desatured panel D-15 test. The test was performed under the daylight fluorescent lamp with a spectral distribution of energy with a color temperature of 6500 K and a color rendering index of 94 that provided 1000 lx on the work plane. The test was carried out monocularly and no time limit was imposed. All data analysis were performed using SPSS, version 22. Results The prevalence of dyschromatopsia among welders was 15 which was statistically higher than that of nonwelder group (2) (p = 0.001). Among welders with dyschromatopsia, color vision deficiency in 72.7 of cases was monocular. There was positive relationship between the employment length and color vision loss (p = 0.04). Similarly, a significant correlation was found between the prevalence of color vision deficiency and average working hours of welding a day (p = 0.025). Conclusions Chronic exposure to welding light may cause color vision deficiency. The damage depends on the exposure duration and the length of their employment as welders. © 2016 Spanish General Council of Optometry

Item Type: Article
Additional Information: Cited By :3 Export Date: 16 February 2020 Correspondence Address: Mahjoob, M.; Department of Optometry, School of Paramedical Science, Mashhad University of Medical SciencesIran; email:
Uncontrolled Keywords: Color vision deficiency Lanthony D-15 test Ultraviolet exposure Welding light adult adverse effects Color Vision Defects cross-sectional study human male middle aged Occupational Diseases occupational exposure prevalence welding Cross-Sectional Studies Humans
Subjects: WW Ophthalmology
Divisions: Mashhad University of Medical Sciences
Depositing User: mr lib3 lib3
Date Deposited: 28 Apr 2020 07:48
Last Modified: 28 Apr 2020 07:48

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