Please use this identifier to cite or link to this item: https://doi.org/10.1023/A:1006340822308
Title: Outdoor work and the risk of pterygia: A case-control study
Authors: Khoo, J.
Saw, S.-M. 
Banerjee, K.
Chia, S.-E. 
Tan, D.
Keywords: Epidemiology
Occupation
Pterygium
Sunlight
Issue Date: 1998
Citation: Khoo, J., Saw, S.-M., Banerjee, K., Chia, S.-E., Tan, D. (1998). Outdoor work and the risk of pterygia: A case-control study. International Ophthalmology 22 (5) : 293-298. ScholarBank@NUS Repository. https://doi.org/10.1023/A:1006340822308
Abstract: Aim: To investigate the relationship between outdoor work and pterygium formation in a hospital-based case-control study in Singapore. Method: Sixty-one patients with pterygium (49 males, mean, age 54.2 years) and 125 controls (41 males, mean age 50.2 years), excluding patients with cataract and age-related macular degeneration presenting at outpatient clinics of the Singapore National Eye Centre were interviewed face-to-face with a standard questionnaire. Demographic data and information on outdoor work and eye protection, were collected. Results: Thirty-eight subjects (20.4%) were outdoor workers and 148 (79.6%) were indoor workers. Outdoor workers were more likely to be male smokers and alcohol drinkers with lower family income and higher sunlight exposure than indoor workers. The crude odds ratio for pterygium in outdoor workers was 7.0 (95% confidence interval 3.2, 15.3). The adjusted odds ratio was 4.2 (95% confidence interval 1.7, 10.1). Conclusion: There is a statistically significant association between outdoor work and pterygium formation, which may be related to the higher exposure to sunlight and dust in outdoor workers. Efforts may be made to educate outdoor workers to wear proper equipment to protect their eyes against excessive sunlight.
Source Title: International Ophthalmology
URI: http://scholarbank.nus.edu.sg/handle/10635/113577
ISSN: 01655701
DOI: 10.1023/A:1006340822308
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