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Pterygium: A Geographical Study

Pterygium: A Geographical Study Abstract A survey of pterygia prevalence was done in 1,252 male sawmill workers and controls in British Columbia, Canada, northern India, Thailand, and Taiwan. The age-adjusted prevalence rate of pterygia in the sawmill workers was 25.3% compared to 7.1% in the control groups, a statistically highly significant finding indicating that the sawmill environment is associated with a high prevalence of pterygia. In addition, the likelihood of a pterygium developing in a sawmill worker's eye was found to increase with longer duration of employment in the mill. Both Punjabi Indian sawmill workers in British Columbia and in New Delhi had a higher prevalence of pterygia than Punjabi farmers in India. Since sawmill workers work indoors it is, therefore, unlikely that ultraviolet radiation alone is the cause of pterygia formation. References 1. Gerundo, M.: On the Etiology and Pathology of Pterygium , Amer J Ophthal 34:851, 1951. 2. King, J.H.: The Pterygium , Arch Ophthal 44:854, 1950.Crossref 3. Kamel, S.: The Pterygium: Its Etiology and Treatment , Amer J Ophthal 38:5; 682, 1964. 4. Kerkenezov, N.: A Pterygium Survey of the Far Northcoast of New South Wales , Trans Ophthal Soc Aust 16:110, 1956. 5. Darrell, R.W., and Bachrach, C.A.: Pterygium Among Veterans , Arch Ophthal 70:158, 1963.Crossref 6. Elliot, R.: The Etiology of Pterygium , Trans Ophthal Soc New Zeal 13:22, 1961. 7. Cameron, M.E.: Pterygium Throughout the World , Springfield, Ill: Charles C Thomas, Publishers, 1965. 8. Diponegoro, R.M.A., and Mulock-Houwer, A.W.: A Statistical Contribution to the Study of the Aetiology of Pterygium , Folia Ophthal Orientalia 2:195, 1936. 9. Dhir, S.P.; Detels, R.; and Alexander, E.R.: The Role of Environmental Factors in Cataract, Pterygium, and Trachoma, Amer J Ophthal, to be published. 10. Goode's World Atlas , ed 11, New York: Rand, McNally & Company, 1960. 11. Detels, R.; Alexander, E.R.; and Dhir, S.P.: Trachoma in Punjabi Indians in British Columbia , Amer J Epidem 84:81, 1966. 12. Mayer, A.C.: A Report on the East Indian Community in Vancouver, working paper. Institute of Social and Economic Research. University of British Columbia, Vancouver, 1959. 13. Lowe, G.H.: The Sikhs of British Columbia, thesis, University of British Columbia, Vancouver, 1952. 14. Dmitry, T.J.: The Dust Factor in the Production of Pterygia , Amer J Ophthal 20:40, 1937. 15. Hilgers, J.H.C.: Pterygium: Its Incidence, Heredity, and Etiology , Amer J Ophthal 50:635, 1960. 16. Fuchs, E.: Ueber das pterygium , Graefe Arch Ophthal 38:1, 1892.Crossref 17. Koller, L.R.: Ultraviolet Radiation , New York: John Wiley & Sons, Inc., 1952. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

Pterygium: A Geographical Study

Archives of Ophthalmology , Volume 78 (4) – Oct 1, 1967

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Publisher
American Medical Association
Copyright
Copyright © 1967 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1967.00980030487014
Publisher site
See Article on Publisher Site

Abstract

Abstract A survey of pterygia prevalence was done in 1,252 male sawmill workers and controls in British Columbia, Canada, northern India, Thailand, and Taiwan. The age-adjusted prevalence rate of pterygia in the sawmill workers was 25.3% compared to 7.1% in the control groups, a statistically highly significant finding indicating that the sawmill environment is associated with a high prevalence of pterygia. In addition, the likelihood of a pterygium developing in a sawmill worker's eye was found to increase with longer duration of employment in the mill. Both Punjabi Indian sawmill workers in British Columbia and in New Delhi had a higher prevalence of pterygia than Punjabi farmers in India. Since sawmill workers work indoors it is, therefore, unlikely that ultraviolet radiation alone is the cause of pterygia formation. References 1. Gerundo, M.: On the Etiology and Pathology of Pterygium , Amer J Ophthal 34:851, 1951. 2. King, J.H.: The Pterygium , Arch Ophthal 44:854, 1950.Crossref 3. Kamel, S.: The Pterygium: Its Etiology and Treatment , Amer J Ophthal 38:5; 682, 1964. 4. Kerkenezov, N.: A Pterygium Survey of the Far Northcoast of New South Wales , Trans Ophthal Soc Aust 16:110, 1956. 5. Darrell, R.W., and Bachrach, C.A.: Pterygium Among Veterans , Arch Ophthal 70:158, 1963.Crossref 6. Elliot, R.: The Etiology of Pterygium , Trans Ophthal Soc New Zeal 13:22, 1961. 7. Cameron, M.E.: Pterygium Throughout the World , Springfield, Ill: Charles C Thomas, Publishers, 1965. 8. Diponegoro, R.M.A., and Mulock-Houwer, A.W.: A Statistical Contribution to the Study of the Aetiology of Pterygium , Folia Ophthal Orientalia 2:195, 1936. 9. Dhir, S.P.; Detels, R.; and Alexander, E.R.: The Role of Environmental Factors in Cataract, Pterygium, and Trachoma, Amer J Ophthal, to be published. 10. Goode's World Atlas , ed 11, New York: Rand, McNally & Company, 1960. 11. Detels, R.; Alexander, E.R.; and Dhir, S.P.: Trachoma in Punjabi Indians in British Columbia , Amer J Epidem 84:81, 1966. 12. Mayer, A.C.: A Report on the East Indian Community in Vancouver, working paper. Institute of Social and Economic Research. University of British Columbia, Vancouver, 1959. 13. Lowe, G.H.: The Sikhs of British Columbia, thesis, University of British Columbia, Vancouver, 1952. 14. Dmitry, T.J.: The Dust Factor in the Production of Pterygia , Amer J Ophthal 20:40, 1937. 15. Hilgers, J.H.C.: Pterygium: Its Incidence, Heredity, and Etiology , Amer J Ophthal 50:635, 1960. 16. Fuchs, E.: Ueber das pterygium , Graefe Arch Ophthal 38:1, 1892.Crossref 17. Koller, L.R.: Ultraviolet Radiation , New York: John Wiley & Sons, Inc., 1952.

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Oct 1, 1967

References