{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T06:28:29Z","timestamp":1793600909233,"version":"4.5.0"},"reference-count":0,"publisher":"Nepal Journals Online (JOL)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nep J Oph"],"abstract":"<jats:p>Objective: To determine the prevalenceof and associated risk factors for pterygiumin the high altitude communities of the Upper Mustang region of Nepal, near the Tibet border. Materials and methods: Six villages of the Upper Mustang were selected based on the concentration of population. All subjects were permanent residents aged 16 years and older, and recruited through a household census with mobilization of local monks who had been trained as interviewers, and people were invited to attend the eye clinic for a complete examination. A cross-sectional studywas conducted which included the parameters oflaterality, severity, occupation, age, sex and altitude of residence. Results:The study population comprised 1,319 individuals of which 637 (48.29%) weremale and682 (51.71%) were female.The overall prevalence of pterygium, was 10.08% (133 of 1,319), with 42.86% for males and 57.14% for females. The mean age of the subjects was45.83 years and the mean SD 17.94. The majority of the subjects had a unilateral pterygium. The right eye(n=63) was predominately affected, in 57.80% of the total subjects. Farmers and construction workers, which comprised of 36.09% and 28.57% respectively, had a higher prevalence of pterygium. The most affected age group was the 66 to 75 years group (n=31: 23.31%). The prevalence increased linearly with age. The severe Grade III and Grade IV pterygium were predominant in the age group of 56-65 years, comprising 28.58% of all the cases;the less severe Grade I was also predominant in the same age group,with 23.56%, and Grade II (0-2 mm) was predominant in the age group of 46-55, with 31.03%. Conclusion: Pterygiumisa significant public health problem in the high altitude communities of Nepal. It is more prevalent amongst the farmers than in the other professionals. DOI: http:\/\/dx.doi.org\/10.3126\/nepjoph.v6i1.10774 Nepal J Ophthalmol 2014; 6 (2): 65-70<\/jats:p>","DOI":"10.3126\/nepjoph.v6i1.10774","type":"journal-article","created":{"date-parts":[[2014,7,23]],"date-time":"2014-07-23T03:43:53Z","timestamp":1406087033000},"page":"65-70","source":"Crossref","is-referenced-by-count":6,"title":["Prevalence of and associated risk factors for pterygium in the high altitude communities of Upper Mustang, Nepal"],"prefix":"10.3126","volume":"6","author":[{"given":"IM","family":"Maharjan","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"E","family":"Shreshth","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B","family":"Gurung","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S","family":"Karmacharya","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1670","published-online":{"date-parts":[[2014,7,22]]},"container-title":["Nepalese Journal of Ophthalmology"],"original-title":[],"link":[{"URL":"https:\/\/www.nepjol.info\/index.php\/NEPJOPH\/article\/download\/10774\/8749","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.nepjol.info\/index.php\/NEPJOPH\/article\/download\/10774\/8749","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T05:48:56Z","timestamp":1793598536000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.nepjol.info\/index.php\/NEPJOPH\/article\/view\/10774"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,7,22]]},"references-count":0,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2014,7,23]]}},"URL":"https:\/\/doi.org\/10.3126\/nepjoph.v6i1.10774","relation":{},"ISSN":["2091-0320","2072-6805"],"issn-type":[{"value":"2091-0320","type":"electronic"},{"value":"2072-6805","type":"print"}],"subject":[],"published":{"date-parts":[[2014,7,22]]}}}