Impairment of color vision in aircraft maintenance workers

Maya Guest, Catherine D'Este, John Attia, May Boggess, Anthony Brown, Meredith Tavener, Richard Gibson, Ian Gardner, Warren Harrex, James Ross

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Purpose The purpose of the study was to examine possible persisting effects to color vision in a group from the Royal Australian Air Force who had exposure to formulations containing neurotoxins during F-111 fuel tank maintenance, relative to two contemporaneous comparison groups. Methods Color vision was tested in 512 exposed personnel, 458 technical-trade comparisons, and 330 non-technical comparisons using the Ishihara test plates and the Lanthony D-15 Desaturated Color disk arrangement test. Participants were excluded if they failed the Ishihara test as this indicates congenital color blindness. From the Lanthony results, the type of color deficient vision (CDV) was diagnosed, and additionally, the Bowman's color confusion index (CCI) was calculated. Regression models were used to examine whether there was an association between color vision deficiencies and F-111 fuel tank maintenance, adjusting for possible confounders. Results The CCI ranged from 1 to 2.8 (median 1.2, quartiles 1.1, 1.4) in the 2,600 eyes tested. Forty five percent of all participants had blue-yellow CDV in at least one eye. Deficiencies of this nature are caused by environmental exposures. Logistic regression demonstrated statistically significant differences in CCI category in the exposed group versus technical group (odds ratio 1.7: 95% CI 1.3-2.0) and a blue-yellow confusion in the exposed group versus technical group (odds ratio 1.4: 95% CI 1.1-1.7). No differences were observed between the exposed group and the non-technical group. Conclusion The results indicate reduced color discrimination among the exposed subjects compared to one of two control groups. The findings may be due to previous exposure to solvents among the air force personnel.

Original languageEnglish (US)
Pages (from-to)723-733
Number of pages11
JournalInternational Archives of Occupational and Environmental Health
Volume84
Issue number7
DOIs
StatePublished - Oct 2011

Fingerprint

Color Vision
Aircraft
Color
Maintenance
Color Vision Defects
Odds Ratio
Confusion
Environmental Exposure
Military Personnel
Neurotoxins
Logistic Models
Air
Control Groups

Keywords

  • Aircraft
  • Aircraft maintenance
  • Color vision
  • Depressive disorders
  • Diabetes
  • Maintenance
  • Military service
  • Neurotoxicity
  • Risk factors

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health

Cite this

Impairment of color vision in aircraft maintenance workers. / Guest, Maya; D'Este, Catherine; Attia, John; Boggess, May; Brown, Anthony; Tavener, Meredith; Gibson, Richard; Gardner, Ian; Harrex, Warren; Ross, James.

In: International Archives of Occupational and Environmental Health, Vol. 84, No. 7, 10.2011, p. 723-733.

Research output: Contribution to journalArticle

Guest, M, D'Este, C, Attia, J, Boggess, M, Brown, A, Tavener, M, Gibson, R, Gardner, I, Harrex, W & Ross, J 2011, 'Impairment of color vision in aircraft maintenance workers', International Archives of Occupational and Environmental Health, vol. 84, no. 7, pp. 723-733. https://doi.org/10.1007/s00420-010-0600-9
Guest, Maya ; D'Este, Catherine ; Attia, John ; Boggess, May ; Brown, Anthony ; Tavener, Meredith ; Gibson, Richard ; Gardner, Ian ; Harrex, Warren ; Ross, James. / Impairment of color vision in aircraft maintenance workers. In: International Archives of Occupational and Environmental Health. 2011 ; Vol. 84, No. 7. pp. 723-733.
@article{64524ca55e3d4325aeefd6fe148dbcea,
title = "Impairment of color vision in aircraft maintenance workers",
abstract = "Purpose The purpose of the study was to examine possible persisting effects to color vision in a group from the Royal Australian Air Force who had exposure to formulations containing neurotoxins during F-111 fuel tank maintenance, relative to two contemporaneous comparison groups. Methods Color vision was tested in 512 exposed personnel, 458 technical-trade comparisons, and 330 non-technical comparisons using the Ishihara test plates and the Lanthony D-15 Desaturated Color disk arrangement test. Participants were excluded if they failed the Ishihara test as this indicates congenital color blindness. From the Lanthony results, the type of color deficient vision (CDV) was diagnosed, and additionally, the Bowman's color confusion index (CCI) was calculated. Regression models were used to examine whether there was an association between color vision deficiencies and F-111 fuel tank maintenance, adjusting for possible confounders. Results The CCI ranged from 1 to 2.8 (median 1.2, quartiles 1.1, 1.4) in the 2,600 eyes tested. Forty five percent of all participants had blue-yellow CDV in at least one eye. Deficiencies of this nature are caused by environmental exposures. Logistic regression demonstrated statistically significant differences in CCI category in the exposed group versus technical group (odds ratio 1.7: 95{\%} CI 1.3-2.0) and a blue-yellow confusion in the exposed group versus technical group (odds ratio 1.4: 95{\%} CI 1.1-1.7). No differences were observed between the exposed group and the non-technical group. Conclusion The results indicate reduced color discrimination among the exposed subjects compared to one of two control groups. The findings may be due to previous exposure to solvents among the air force personnel.",
keywords = "Aircraft, Aircraft maintenance, Color vision, Depressive disorders, Diabetes, Maintenance, Military service, Neurotoxicity, Risk factors",
author = "Maya Guest and Catherine D'Este and John Attia and May Boggess and Anthony Brown and Meredith Tavener and Richard Gibson and Ian Gardner and Warren Harrex and James Ross",
year = "2011",
month = "10",
doi = "10.1007/s00420-010-0600-9",
language = "English (US)",
volume = "84",
pages = "723--733",
journal = "International Archives of Occupational and Environmental Health",
issn = "0340-0131",
publisher = "Springer Verlag",
number = "7",

}

TY - JOUR

T1 - Impairment of color vision in aircraft maintenance workers

AU - Guest, Maya

AU - D'Este, Catherine

AU - Attia, John

AU - Boggess, May

AU - Brown, Anthony

AU - Tavener, Meredith

AU - Gibson, Richard

AU - Gardner, Ian

AU - Harrex, Warren

AU - Ross, James

PY - 2011/10

Y1 - 2011/10

N2 - Purpose The purpose of the study was to examine possible persisting effects to color vision in a group from the Royal Australian Air Force who had exposure to formulations containing neurotoxins during F-111 fuel tank maintenance, relative to two contemporaneous comparison groups. Methods Color vision was tested in 512 exposed personnel, 458 technical-trade comparisons, and 330 non-technical comparisons using the Ishihara test plates and the Lanthony D-15 Desaturated Color disk arrangement test. Participants were excluded if they failed the Ishihara test as this indicates congenital color blindness. From the Lanthony results, the type of color deficient vision (CDV) was diagnosed, and additionally, the Bowman's color confusion index (CCI) was calculated. Regression models were used to examine whether there was an association between color vision deficiencies and F-111 fuel tank maintenance, adjusting for possible confounders. Results The CCI ranged from 1 to 2.8 (median 1.2, quartiles 1.1, 1.4) in the 2,600 eyes tested. Forty five percent of all participants had blue-yellow CDV in at least one eye. Deficiencies of this nature are caused by environmental exposures. Logistic regression demonstrated statistically significant differences in CCI category in the exposed group versus technical group (odds ratio 1.7: 95% CI 1.3-2.0) and a blue-yellow confusion in the exposed group versus technical group (odds ratio 1.4: 95% CI 1.1-1.7). No differences were observed between the exposed group and the non-technical group. Conclusion The results indicate reduced color discrimination among the exposed subjects compared to one of two control groups. The findings may be due to previous exposure to solvents among the air force personnel.

AB - Purpose The purpose of the study was to examine possible persisting effects to color vision in a group from the Royal Australian Air Force who had exposure to formulations containing neurotoxins during F-111 fuel tank maintenance, relative to two contemporaneous comparison groups. Methods Color vision was tested in 512 exposed personnel, 458 technical-trade comparisons, and 330 non-technical comparisons using the Ishihara test plates and the Lanthony D-15 Desaturated Color disk arrangement test. Participants were excluded if they failed the Ishihara test as this indicates congenital color blindness. From the Lanthony results, the type of color deficient vision (CDV) was diagnosed, and additionally, the Bowman's color confusion index (CCI) was calculated. Regression models were used to examine whether there was an association between color vision deficiencies and F-111 fuel tank maintenance, adjusting for possible confounders. Results The CCI ranged from 1 to 2.8 (median 1.2, quartiles 1.1, 1.4) in the 2,600 eyes tested. Forty five percent of all participants had blue-yellow CDV in at least one eye. Deficiencies of this nature are caused by environmental exposures. Logistic regression demonstrated statistically significant differences in CCI category in the exposed group versus technical group (odds ratio 1.7: 95% CI 1.3-2.0) and a blue-yellow confusion in the exposed group versus technical group (odds ratio 1.4: 95% CI 1.1-1.7). No differences were observed between the exposed group and the non-technical group. Conclusion The results indicate reduced color discrimination among the exposed subjects compared to one of two control groups. The findings may be due to previous exposure to solvents among the air force personnel.

KW - Aircraft

KW - Aircraft maintenance

KW - Color vision

KW - Depressive disorders

KW - Diabetes

KW - Maintenance

KW - Military service

KW - Neurotoxicity

KW - Risk factors

UR - http://www.scopus.com/inward/record.url?scp=80655128191&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80655128191&partnerID=8YFLogxK

U2 - 10.1007/s00420-010-0600-9

DO - 10.1007/s00420-010-0600-9

M3 - Article

C2 - 21076964

AN - SCOPUS:80655128191

VL - 84

SP - 723

EP - 733

JO - International Archives of Occupational and Environmental Health

JF - International Archives of Occupational and Environmental Health

SN - 0340-0131

IS - 7

ER -