title: Prevalence of glaucoma in Sunsari district of eastern Nepal.
abstract: OBJECTIVE
  To determine prevalence of glaucoma and glaucoma suspect in subjects 40 years and above in Sunsari district of eastern Nepal.
  
  
  METHODS
  A community based cross sectional study examining 1600 selected subjects was carried out. In all subjects best corrected visual acuity was determined. Oblique torch light test was used for anterior chamber depth evaluation. Intraocular pressure (IOP) measurements with Perkins tonometer and fundus examination were carried out in the community. Subjects diagnosed as glaucoma suspect were further evaluated in the hospital using slit lamp examination, gonioscopy and Goldmann perimetry. Glaucoma was defined by characteristic disc and visual field changes irrespective of the level of IOP.
  
  
  RESULTS
  Of 1600 subjects examined, the prevalence of glaucoma was found to be 0.938%. The prevalences of primary open angle glaucoma, primary angle closure glaucoma, secondary glaucoma and ocular hypertension were 0.562%, 0.125%, 0.250% and 0.500% respectively. Lens induced glaucoma accounted for all the cases of secondary glaucoma.
  
  
  CONCLUSIONS
  The prevalence of glaucoma in the Sunsari District of Nepal is 0.938%, which is lower than that reported in the neighboring regions. Lens induced glaucoma is highly prevalent as a cause of secondary glaucoma.
authors.affiliation: Rana Ambika Lumbini Eye Institute, Bhairawa, Nepal.
authors.forename: R P
authors.initials: RP
authors.lastname: Sah
authors.forename: B P
authors.initials: BP
authors.lastname: Badhu
authors.forename: P K
authors.initials: PK
authors.lastname: Pokharel
authors.forename: S K D
authors.initials: SK
authors.lastname: Thakur
authors.forename: H
authors.initials: H
authors.lastname: Das
authors.forename: A
authors.initials: A
authors.lastname: Panda
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D005260:Female; D005901:Glaucoma / Q000175:diagnosis / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009390:Nepal / Q000453:epidemiology; D015995:Prevalence