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Review
. 2002 Feb;86(2):238-42.
doi: 10.1136/bjo.86.2.238.

The definition and classification of glaucoma in prevalence surveys

Paul J Foster  1 , Ralf Buhrmann, Harry A Quigley, Gordon J Johnson
Affiliations
Review

The definition and classification of glaucoma in prevalence surveys

Paul J Foster et al. Br J Ophthalmol. 2002 Feb.

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.

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Figures

Figure 1
Figure 1
The cumulative percentage of vertical CDR distribution among subjects able to complete visual field testing in a population survey in whom a reproducible visual field defect (glaucoma hemifield test “outside normal limits” and a four point cluster (p<5%) on the pattern deviation plot) was identified. The data shown here are based on 61 of 67 eyes. Fives eyes were excluded because lens opacity was sufficient to account for the field defect. One eye was excluded because diabetic retinopathy was present. Several eyes with severe visual field loss were not able to produce a reliable visual field test result.
See this image and copyright information in PMC

References

    1. Buhrmann RR, Quigley HA, Barron Y, et al. Prevalence of glaucoma in a rural East African population. Invest Ophthalmol Vis Sci 2000;41:40–8. - PubMed
    1. Foster PJ, Baasanhu J, Alsbirk PH, et al. Glaucoma in Mongolia—a population-based survey in Hövsgöl Province, Northern Mongolia. Arch Ophthalmol 1996;114:1235–41. - PubMed
    1. Foster PJ, Oen FT, Machin DS, et al. The prevalence of glaucoma in Chinese residents of Singapore. A cross-sectional population survey in Tanjong Pagar district. Arch Ophthalmol 2000;118:1105–11. - PubMed
    1. Quigley HA. Number of people with glaucoma worldwide. Br J Ophthalmol 1996;80:389–93. - PMC - PubMed
    1. Asman P, Heijl A. Diffuse visual field loss and glaucoma. Acta Ophthalmol Scand 1994;72:303–8. - PubMed