Citation:Lü P,Chen XM.Prevalence and risk factors of pterygium.Int J Ophthalmol 2009;2(1):82-85,doi:
Prevalence and risk factors of pterygium
Received:November 24, 2008  Revised:January 10, 2009
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Key Words:pterygium  epidemiological study  risk factors
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Peng Lü Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu , Sichuan Province, China; Department of Ophthalmology, Qinghai Women and Children’s Hospital, Xining , Qinghai Province, China
Xiao-Ming Chen Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu , Sichuan Province, China
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Abstract:
      Pterygium is a common disorder of ocular surface with unknown etiology and pathogenesis. The epidemiological studies around the world have shown that the prevalence rates range from 0.3% to 37.46%. Pterygium is related to geographic setting, sunlight and ultraviolet exposure, age, gender, economic situation, dry eye syndrome and others. The purpose of this review is to present a summary of the more recent literature about the epidemiological study, paying particular attention to prevalence and risk factors of pterygium.
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