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Prevalence and Associated Factors of Pterygium Among Adults Living in Kolla Diba Town, Northwest Ethiopia

Authors Kassie Alemayehu T, Addis Y, Yenegeta Bizuneh Z, Mulusew Tegegne M, Alemayehu AM

Received 25 November 2019

Accepted for publication 7 January 2020

Published 28 January 2020 Volume 2020:14 Pages 245—255

DOI https://doi.org/10.2147/OPTH.S239982

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Dr Scott Fraser


Tibebu Kassie Alemayehu, Yezinash Addis,* Zewdu Yenegeta Bizuneh,* Mebratu Mulusew Tegegne,* Abiy Maru Alemayehu*

Department of Optometry, School of Medicine, College of Medicine and Health Science, University of Gondar, Gondar City, Ethiopia

*These authors contributed equally to this work

Correspondence: Tibebu Kassie Alemayehu Tel +251910606005
Email rophymaher@gmail.com

Background: Pterygium is a disfiguring disease that can potentially lead to blindness. It is more common in warm, windy and dry climates of tropical and sub-tropical regions of Africa. Globally, the prevalence ranging from 0.07% to 53%. Studies conducted on the prevalence of pterygium in developing countries were limited with a wider discrepancy between them. In this study, we aimed to assess the prevalence of pterygium and its associated factors among adults in Kolla Diba town.
Methods: 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. The basic ophthalmic examination was performed using portable slit lamp, 3x magnifying loop with torch light and a pretested structured questionnaire was completed. 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.
Results: 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 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. Being widowed, outdoor occupation, sun exposure, wind exposure, alcohol drinking, and severe blepharitis were significantly associated with the development of pterygium.

Keywords: pterygium, marital status, prevalence, Kolla Diba, Ethiopia

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