rss
Br J Ophthalmol 86:238-242 doi:10.1136/bjo.86.2.238
  • Perspective

The definition and classification of glaucoma in prevalence surveys

  1. Paul J Foster1,
  2. Ralf Buhrmann2,
  3. Harry A Quigley3,
  4. Gordon J Johnson1
  1. 1Department of Epidemiology and International Eye Health, Institute of Ophthalmology, Bath Street, London EC1V 9EL, UK
  2. 2University of Ottawa Eye Institute, Ottawa, Ontario, Canada
  3. 3Dana Center for Preventive Ophthalmology, Johns Hopkins University, Baltimore, Maryland, USA
  1. Correspondence to: Paul J Foster, Department of Epidemiology and International Eye Health, Institute of Ophthalmology, Bath Street, London EC1V 9EL, UK; p.foster{at}ucl.ac.uk
  • Accepted 3 August 2001

Abstract

This review describes a scheme for diagnosis of glaucoma in population based prevalence surveys. Cases are diagnosed on the grounds of both structural and functional evidence of glaucomatous optic neuropathy. The scheme also makes provision for diagnosing glaucoma in eyes with severe visual loss where formal field testing is impractical, and for blind eyes in which the optic disc cannot be seen because of media opacities.

Footnotes