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Epidemiological study of myopia in weavers


, : Epidemiological study of myopia in weavers. Iranian Journal of Public Health 8(3): 169

To study the effect of working conditions and the type of work performed by the workers on the prevalence of myopia, 431 male weavers from a textile mill and 251 workers from a food processing plant serving as controls were examined. The results obtained indicate that 31.55% of weavers suffer from myopia; in the 2nd group of workers the percentage was 11.95. The difference between these groups is statistically significant (P = 0.001). The effect of age on the prevalence of myopia in the weavers is more significant than in the controls. The reason for this is the relation between aging and increase in length of employment. There is a direct relationship between length of employment and prevalence of myopia in weavers (P = 0.001); this is not observed in the controls. The results obtained in this study confirm previous studies and indicate that the prevalence of myopia is not the same in different industries. The main factors responsible are poor lighting, type of work performed and length of employment.

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