Pterygium: prevalence and severity in an Amazonian ophthalmic setting, Brazil

Coutts, Sophie Joanna; Coombes, Andrew

doi:10.1590/s0034-72802012000600006

Cited by 9 publications

(9 citation statements)

References 17 publications

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“…Another reason might be age cut off point as the present study involved all available inhabitants aged ≥ 18 years as compared to the study conducted in Gondar city (age >20 years). In contrast to few other studies, this study also shows lower prevalence than other studies conducted in Ghana 31.0% [18], 30.8% in Kumejima (Southwest Japan) [36], 37.46% in Duomen County (Republic of China) [39] and 36.6% in Amazon Basin (Brazil) [31]. This variation might be due to the difference in the target population, ethnicity and altitudinal variation.…”

Section: Discussioncontrasting

confidence: 90%

Prevalence and associated factors of pterygium among adults living in Kolla diba town, Northwest Ethiopia

Alemayehu

Addis

Bizuneh

et al. 2019

Preprint

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Purpose: The aim of this study was to assess the prevalence and associated factors of pterygium among adults in Kolla Diba town, Northwest Ethiopia, 2019. Method: A community-based cross-sectional study was done in Kolla Diba town from May 30-June 16, 2019. A systematic random sampling technique was used to select 627 study participants. Data was collected through basic ophthalmic examination with a portable slit lamp, 3x magnifying loop and torchlight and a pretested structured questionnaire were administered to collect the data. Then the data entered into EPI INFO version 7 and analyzed using SPSS version 20. Descriptive statistics and binary logistic regression analysis were employed. P-values of <0.05 were considered statistically significant. Result: A total of 605 study participants were involved with a response rate of 96.5%. Among them 317 (52.4%) participants were males. The mean age of the respondents was 38.18 +/- 15.56 with a range of (18-95) in years. The overall Prevalence of pterygium among adults living in Kolla Diba town was 112 (18.5% (95% CI (15.6- 21.7)). Being widowed (AOR = 7.32 (95%CI: 2.88, 18.57)), outdoor occupation (AOR = 2.50 (95%CI: 1.46, 4.29)), sun exposure (AOR = 2.38 (95%CI: 1.28, 4.43)), wind exposure (AOR = 1.97 (95%CI: 1.04, 3.72)), alcohol drinking (AOR = 2.26 (95%CI: 1.48, 4.63)), and severe blepharitis (AOR = 2.45 (95%CI: 1.48, 4.05)) had statistically significant positive association with pterygium. Conclusion: The prevalence of pterygium was relatively higher. Marital status (being widowed), outdoor occupation, sun exposure, wind exposure, alcohol drinking, and severe blepharitis were significantly associated with the development of pterygium.

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Section: Discussioncontrasting

confidence: 90%

Prevalence and associated factors of pterygium among adults living in Kolla diba town, Northwest Ethiopia

Alemayehu

Addis

Bizuneh

et al. 2019

Preprint

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“…Twelve studies were conducted in world areas at extremely high risk according to the mean annual UVI: three in Africa (Ghana [ 34 ], Nigeria [ 35 ] and Ethiopia [ 36 ]), two in Central/South America (Barbados [ 37 ] and Brazil [ 38 ]) and seven in Asia (four from South India [ 39 , 40 , 41 , 42 ], one from Thailand [ 43 ] and two from Singapore [ 44 , 45 ]) ( Table 5 ).…”

Section: Resultsmentioning

confidence: 99%

Occupational Exposure to Solar Radiation at Different Latitudes and Pterygium: A Systematic Review of the Last 10 Years of Scientific Literature

Modenese

Gobba

2017

IJERPH

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Pterygium is a chronic eye disease: among its recognized risk factors there is long-term exposure to ultraviolet (UV) radiation. The Sun is the main source of UV exposure: according to the World Health Organization, the Population Attributable Fraction of pterygium due to solar radiation (SR) is 42–74%. Outdoor work can deeply influence the eye exposure to solar UV rays, but, despite this, pterygium is currently not adequately considered as a possible occupational disease in this working category, at least in Europe. For this reason, we performed a systematic review of the scientific literature published in the last ten years (2008–2017) considering the role of outdoor work as a risk factor for pterygium, in order to give new support for the prevention of this UV related disease in workers. We identified 29 relevant papers. Our results show that pterygium prevalence highly increased with latitude and mean annual UV index, and outdoor work is one of the most relevant risk factors, as well as age and male sex, both in high risk and in moderate risk World areas considering the environmental UV levels. Accordingly, pterygium occurring in outdoor workers should be considered an occupational disease. Moreover, our findings clearly support the need of further research on more effective prevention of the occupational risk related to long-term solar radiation exposure of the eye.

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“…Occupational exposure to solar UV is one of the most relevant factors associated with pterygium presence, both in the case of high to extremely high levels of environmental UV and in the case of a moderate UV index. Occupational exposure was found to be positively associated with the severity of the disease [ 53 , 55 , 58 , 70 ]. Furthermore, in one study, pterygium occurrence was specifically associated with the total number of years worked [ 51 ] and in terms of protection, sunglasses, spectacles, and hats were found to be significant protective factors for pterygium in OW [ 52 , 54 , 63 ].…”

Section: Adverse Health Effects Of Solar Radiation Exposure In Outmentioning

confidence: 99%

Solar Radiation Exposure and Outdoor Work: An Underestimated Occupational Risk

Modenese

Korpinen

Gobba

2018

IJERPH

150

164

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A considerably high number of outdoor workers worldwide are constantly exposed for the majority of their working life to solar radiation (SR); this exposure is known to induce various adverse health effects, mainly related to its ultraviolet (UV) component. The skin and the eye are the principal target organs for both acute and long-term exposure. Actinic keratosis, non-melanoma skin cancers, and malignant melanoma are the main long-term adverse skin effects, whereas in the eye pterygium, cataracts, and according to an increasing body of evidence, macular degeneration may be induced. Despite this, SR exposure risk is currently undervalued, if not neglected, as an occupational risk factor for outdoor workers. SR exposure is influenced by various environmental and individual factors, and occupation is one of the most relevant. For a better understanding of this risk and for the development of more effective prevention strategies, one of the main problems is the lack of available and adequate methods to estimate SR worker exposure, especially long-term exposure. The main aims of this review were to provide a comprehensive overview of SR exposure risk of outdoor workers, including the UV exposure levels and the main methods recently proposed for short-term and cumulative exposure, and to provide an update of knowledge on the main adverse eye and skin effects. Finally, we also outline here preventive interventions to reduce occupational risk.

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Pterygium: prevalence and severity in an Amazonian ophthalmic setting, Brazil

Cited by 9 publications

References 17 publications

Prevalence and associated factors of pterygium among adults living in Kolla diba town, Northwest Ethiopia

Prevalence and associated factors of pterygium among adults living in Kolla diba town, Northwest Ethiopia

Occupational Exposure to Solar Radiation at Different Latitudes and Pterygium: A Systematic Review of the Last 10 Years of Scientific Literature

Solar Radiation Exposure and Outdoor Work: An Underestimated Occupational Risk

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